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  • 1995-1999  (2,126)
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  • 1
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    Universität Göttingen,Abteilung Bodenphysik
    In:  Universität Göttingen
    Publication Date: 2024-06-17
    Description: research
    Keywords: Depth ; Time Function ; MicrobialBiomass ; Ploughed ; Grassland Typudalfs ; Lower Saxony ; Germany
    Language: English
    Type: doc-type:book
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  • 2
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    Selbstverlag Fachbereich Geowissenschaften, FU Berlin
    In:  Herausgeberexemplar
    Publication Date: 2024-05-08
    Description: Inhaltsübersicht : Helmut Keupp & Daria Ivanova: Calcareous dinoflagellate cysts from the Late Jurassic and Early Cretaceous of the Western Forebalkan, Bulgaria … 3-31 ; Helmut Keupp & Rolf Kohring: Kalkige Dinoflagellatenzysten aus dem Obermiozän (NN 11 ) W von Rethimnon (Kreta) … 33-53 ; Dimitris Frydas, Helmut Keupp & Spyridon M. Bellas: Biostratigraphical research in Late Neogene marine deposits of the Chania Province, western Crete, Greece … 55-67 ; Glenn Fechner: "Microforaminiferal" lining taphonomy: A cautionary note … 69-81 ; Uwe Gloy & Rolf Kohring: Py-GC-Analysen an einem fossilen Harz aus dem Oberen Jura (Grube Guimarota/Portugal) … 83-88 ; Joachim Gründel: Truncatelloidea (Littorinimorpha, Gastropoda) aus dem Lias und Dogger Deutschlands und Nordpolens … 89-119 ; Helmut Keupp, Martin Röper & Adolf Seilacher: Paläobiologische Aspekte von syn vivo-besiedelten Ammonoideen im Plattenkalk des Ober-Kimmeridgiums von Brunn in Ostbayern … 121-145 ; Nikolaus Malchus: Identification of larval bivalve shells by means of simple statistics … 147-160 ; Carsten Helm, John W.M. Jagt & Manfred Kutscher: Early Campanian ophiuroids from the Hannover area (Lower Saxony, Northern Germany) … 161-173 ; Christian Neumann: New spatangoid echinoids (Echinodermata) from the Upper Cretaceous of Jordan: taxonomy and phylogenetic importance … 175-189 ; Oldrich Fejfar und Daniela C. Kalthoff: Aberrant cricetids (Platacanthomyines, Rodentia, Mammalia) from the Miocene of Eurasia … 191-206 ; Thekla Pfeiffer: Sexualdimorphismus, Ontogenie und innerartliche Variabilität der pleistozänen Cervidenpopulationen von Dama dama geiselana Pfeiffer 1998 und Cervus elaphus L. (Cervidae, Mammalia) aus Neumark-Nord (Sachsen-Anhalt, Deutschland) … 207-313 ; Beiträge zur Baikal-Rift-Forschung : MJ. Kuzmin et al.: Climatic events in Siberia during upper Brunhes according to the Lake Baikal sedimentary record … 315-323 ; S. K. Krivonogov et al.: The prospects of GIS use in investigation of the Baikal area … 325-328 ; Y. Masuda et al.: Perspective Studies of Freshwater Sponges in Lake Baikal … 329-332 ; Oleg A. Timoshkin: Biology of Lake Baikal: „White Spots“ and Progress in Research … 333-348 ; Bibliographie : Uwe Gloy: Bibliographie 1997, Institut für Paläontologie, FU Berlin … 349-352 ;
    Description: thesis
    Description: DFG, SUB Göttingen
    Keywords: ddc:560 ; Paläobiologie ; Paläontologie
    Language: German , English
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  • 3
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    Selbstverlag Fachbereich Geowissenschaften, FU Berlin
    In:  Herausgeberexemplar
    Publication Date: 2024-05-06
    Description: Klaus Bandel & Thorsten Kowalke: Systematic value of the larval shell of fossil and modern Vanikoridae, Pickworthiidae and the genus Fossarus (Caenogastropoda, Mollusca) … 3 ; R. Thomas Becker: Eine neue und älteste Glatziella (Clymeniida) aus dem höheren Oberdevon des Nordsauerlandes (Rheinisches Schiefergebirge) … 31 ; Glenn G. Rechner: Eine Dinoflagellaten-Zysten-Vergesellschaftung des tieferen Rupelium (Unter-Oligozän) aus transgressiven Ablagerungen nördlich von Altenhausen in Sachsen-Anhalt (Blatt 3733, Erxleben) … 43 ; Joachim Gründel: Zur Kenntis einiger Gastropoden-Gattungen aus dem französischen Jura und allgemeine Bemerkungen zur Gastropodenfauna aus dem Dogger Mittel- und Westeuropas … 69 ; Joachim Gründel: Heterostropha (Gastropoda) aus dem Dogger Norddeutschlands und Nordpolens. I. Mathildoidea (Mathildidae) … 131 ; Joachim Gründel: Heterostropha (Gastropoda) aus dem Dogger Norddeutschlands und Nordpolens. III. Opisthobranchia … 177 ; C. M. Hampton & J. E. Rae: Genesis of the fossiliferous Pleistocene Hima Limestone, western Uganda, as indicated by its isotopic composition … 225 ; Helmut Keupp: Anomal kiellose Hildoceratidae (= „Subfamilie Monestierinae SAPUNOV 1965“): Ursache taxonomischer Konfusionen (Ammonoidea, Toarcium) … 233 ; Helmut Keupp: Paläopathologische Analyse einer „Population“ von Dactylioceras athleticum (SIMPSON) aus dem Unter-Toarcium von Schlaifhausen/Oberfranken … 243 ; Rolf Kohring: Eischalen neognather Vögel aus dem mitteleozänen Geiseltal (Deutschland) … 269 ; Rolf Kohring: Eggshell Structure as Evidence in Avian Systematics - Preliminary Results … 281 ; Jürgen Kriwet: Beitrag zur Kenntnis der Fischfauna des Oberjura (unteres Kimmeridgium) der Kohlengrube Guimarota bei Leiria, Mittel-Portugal: 2. Neoselachii (Pisces, Elasmobranchii) ... 293 ; Thomas Schlüter: Validity of the Paratrichoptera - an extinct Insect Order related to the Mecoptera, Diptera, Trichoptera or Lepidoptera? Suggestions based on discoveries in the Upper Triassic Molteno Formation of South Africa … 303 ; Rolf Kohring: Bibliographie 1996, Institut für Paläontologie, Freie Universität Berlin … 313 ;
    Description: thesis
    Description: DFG, SUB Göttingen
    Keywords: ddc:560 ; Paläobiologie ; Paläontologie
    Language: German , English
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  • 4
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    Selbstverlag Fachbereich Geowissenschaften Freie Universität Berlin
    In:  SUB Göttingen | 98 B 4059
    Publication Date: 2024-05-03
    Description: Die Andenkordillere entstand entlang des westlichen Randes von Südamerika aufgrund der Subduktion der ozeanischen Nazca-Platte unter die kontinentale Südamerikaplatte seit dem Jura. Als solche werden die Anden als ein klassisches Beispiel eines Orogens entlang eines aktiven Kontinentalrandes betrachtet. Obwohl die gegenwärtige Physiographie das Ergebnis der Andinen Tektonik ist, sind die Zentralanden das Ergebnis von einem komplexen Zusammenspiel von Präkambrischen und Paläozoischen Terrane-Akretionen und Phasen von Kompression und Extension. Die Puna und die Ostkordillere spielen in diesem Zusammenhang eine entscheidende Rolle in der tektonischen Entwicklung der Zentralanden. Die vorliegende Untersuchung befasst sich mit dem Gebiet der nördlichen argentinischen Puna und der Ostkordillere, von etwa 22°S bis 24°S und 65 °W bis 66°30' W. Es wurden etwa 1200 km Seismik interpretiert, deren Ergebnis als Randbedingung in die Konstruktion des gravimetrischen 3D Modells des Gebietes einging.
    Description: The Andes Mountains developed along the western margin of SouthAmerica in response to the subduction of the oceanic Nazca Plate below the South American plate since the Jurassic times. It is considered as one of the classic examples of a mountain chain developed in an active continental margin. Although their present physiography is given by the Andean tectonics, the Central Andes are the result of complex interplay of Precambrian and Paleozoic terrane accretion and phases of compression and extension. The Puna and Eastern Cordillera represent key elements in the tectonic evolution of the Central Andes. The present study covers a region of the northern Puna and Eastern Cordillera extending from approximately 22°S to 24°S and 65 °W to 66°30'W in Argentina. About 1200 km of seismic lines were interpreted and were used as a geometrical constraint for the construction of a 3D gravity model of the area.
    Description: thesis
    Description: DFG, SUB Göttingen
    Keywords: ddc:558 ; Anden ; Argentinien ; Seismik
    Language: English
    Type: doc-type:book
    Format: 192
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  • 5
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    Selbstverlag Fachbereich Geowissenschaften, FU Berlin
    In:  Herausgeberexemplar
    Publication Date: 2024-05-02
    Description: In der vorliegenden Arbeit wird die Krustenstruktur im östlichen Andenvorland untersucht. Das Gebiet umfaßt den Nordwesten Argentiniens, zwischen dem 22° und 25° südlichen Breitengrad und dem 66° und 62° westlichen Längengrad. Aus morphologischer Sicht befindet sich das Untersuchungsgebiet im Übergang zwischen dem Subandin (Sierras Subandinas) und der südlichen Ostkordillere zum Chaco Vorland (Llanura Chaqueña). Im Untersuchungsgebiet zeichnet sich ein Wechsel in den tektonischen Strukturen ab, welcher als Interaktion zwischen der tertiären Andenorogenese und kretazischen Riftbildungen gedeutet wird. Dieser als Inversionstektonik bekannte tektonischer Stil hat nicht nur oberflächennahe Strukturen hervorgerufen, sondern auch tiefgreifende Massenveränderungen verursacht. Teile dieser Modifikationen sind in der Signatur des Schwerefeldes erhalten geblieben, und somit ist die Interpretation gravimetrischer Meßergebnisse zusammen mit den geologischen Randbedingungen eine Grundvorraussetzung zur Untersuchung dieser tektonischen Interaktion. Zum Verständnis dieser Strukturen war es notwendig, sowohl den Teil des Beckens zu untersuchen, welcher nicht von der andinen Orogenese betroffen ist, als auch jenen der direkt in die letztere miteinbezogen wurde. Aus gravimetrischer Sicht ist die Bougueranomalie des Gebietes stark vom Effekt der Andenwurzel geprägt. Jedoch deuten einige Abweichungen auf die Existenz lokalerer Störkörper hin, die Ziel der Modellierung waren. Ein solcher Störkörper wurde am südöstlichen Rand des kretazischen Rifts identifiziert. Die Modellierung wurde einerseits zweidimensional durchgeführt um einen Überblick über das Gebiet zu bekommen. Eine regionale 3D Modellierung führte dann zu einer präziseren Interpretation des Gebietes. Insbesondere wurde dabei der Effekt überschobener Riftschollen am Ostrand des Beckens untersucht. Diese Überschiebungen drücken sich im gravimetrischen Restfeld als deutliche positive Anomalie aus. Allerdings kann diese Anomalie nicht direkt mit einem Astenosphärenanstieg, welcher durch Riftbildung entstanden sein könnte, in Einklang gebracht werden - wie von einigen Autoren vermutet wurde. Eine weitere modellierte Struktur bildete die Vortiefe, welche durch die Auflast der andinen Überschiebung enstanden ist. Die dadurch hervorgerufenen negativen Anomalien bilden einen deutlichen Kontrast zu der beschriebenen positiven Anomalie im Vorland, der sich auch im Restfeld als starker Gradient äußert. Die 2D Modellierung erbrachte folgende Ergebnisse: im anorogenen Breich des Untersuchungsgebietes wurde die Existenz einer deutliche Asymmetrie des Beckens bestätigt, mit einer nach Südosten geneigten Riftabscherungsfläche. Die Orogenese hinterließ deutliche Spuren in der Reaktivierung der Abscherungen wobei entlang der südostvergenten Störungen tieferes Krustenmaterial emporgeschoben wurde. Mit einer größeren Dichte wird dieser Vorgang als Ursache der positiven Anomalie intepretiert. Westvergente Störungen scheinen nur oberflächennahe Bereiche miteinbezogen haben. Im regionalen 3D Modell wurde ein Ansteigen der Unterkruste unterhalb des Beckens angenommen. Die asymmetrische Anordnung dieses Anstiegs deutet eher auf einen kompressive tektonischen Effekt hin als auf eine residuale Krustenverdünnung. Zusammenfassend kann gesagt werden, daß sich in diesem Breich im Schwerefeld die Effekte des Andengradienten mit denen der überschobenen Basement-Tektonik und der Vorlandtief kombinieren und als solche fur einen starken lokalen Gradienten am Rande des Effekts der Andenwurzel verantwortlich sind.
    Description: In the present study, the structure of the crust beneath the eastern Andean foreland is analyzed. The area comprises part of northwest Argentina, between 22° and 25° S and 66° and 62° W. In terms of morphotectonics, the area studied covers the transition between the Sierras Subandinas (Subandean Ranges) and the southern part of the Cordillera Oriental (Eastern Cordillera) to the Chaco plains (Llanura Chaqueña). In the area, a pervasive change controls the tectonic features, which is interpreted as a consequence of the interaction between the Andean orogeny and preexistent Cretaceous rifting. This inversion tectonics did not only result in a particular suite of near to surface structures but also modified deeply the mass distribution within the crust. This changes in mass distributions and hence density contrasts is evidenced by the gravity field. As such, a careful analysis of gravity data together with the geological boundary conditions are the basis for an analysis of this tectonic interaction. Understanding these structures implied to analyse not only the part of the rift involved in the Andean compressive orogenesis but also that part where original extensional features are still preserved. From a gravimetrical point of view, the Bouguer-anomaly of the area shows a strong overprint related with the Andean root. Some smaller changes in the field however indicate the existence of local sources, which where the target of the modelling. Such a change had been indentified at the southeastern edge of the Cretaceous rift. Modelling was performed towfold. As such, a 2D model was made in order to get an insight into the regional aspects of the area. A more detailed 3D model led to a more precise interpretation of the area. In particular, the effect of the inverted rift tectonics at the eastern edge of the basin was studied. These upthrusts correlate with a readily identifiable positive anomaly within the residual field. The anomaly neverthless cannot be directly related with an astenospheric uprise, preserved since the rifting stage, as suggested by some authors. In addition, the foredeep related with the tectonic load of the Andean overthurst, was modelled. The negative anomalies generated during this process, show a strong contrast in comparison with the positive anomaly described above, depicted also by a prominent gradient in the residual field. 2D modelling led to the following results. In the region, where Creataceous rifting structures were not overprinted by the Andean orogeny an obvious asymmetry of the basin was defined, being the master detachment dipping to the northeast. The orogeny left evidences of reactivation, where the structures of the southeastern edge were the pathways of the uplift if deeper crustal material with a higher density. This process may be responsible for a part of the positive anomaly mentioned. Structures located at the western and northwestern edge of the basin seem to have only involved nearer-to surface structures. The 3D model assumed a slight uprise of the lower crust beneath the basin. The asymmetry in goemetty seem to stand more for a tectonic effect than for a remanent thinned crust. As a summary, the gravity field in this area shows the combined effects of the regional Andean gradient with the more local effects of the basement tectonics (inverted rifting) and the overthrusted foredeep. Hence, at least these three factors seem to be responsible for the strong local gradient in a lateral position of the Andean root.
    Description: thesis
    Description: DFG, SUB Göttingen
    Keywords: ddc:550 ; Geophysik
    Language: English
    Type: doc-type:book
    Format: 136
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  • 6
    Publication Date: 2024-05-02
    Language: English
    Type: info:eu-repo/semantics/conferenceObject
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  • 7
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    Selbstverl. Fachbereich Geowissenschaften, FU Berlin, Berlin
    In:  Herausgeberexemplar
    Publication Date: 2024-04-17
    Description: Gerhard Hahn & Renate Hahn: Neue Beobachtungen an Plagiaulacoidea (Multituberculata) des Ober-Juras 1 . Zum Zahn-Wechsel bei Kielanodon. ... 1 ; Gerhard Hahn & Renate Hahn: Neue Beobachtungen an Plagiaulacoidea (Multituberculata) des Ober-Juras 2. Zum Bau des Unterkiefers und des Gebisses bei Meketibolodon und bei Guimarotodon. ... 9 ; Gerhard Hahn & Renate Hahn: Neue Beobachtungen an Plagiaulacoidea (Multituberculata) des Ober-Juras 3. Der Bau der Molaren bei den Paulchoffatiidae. ... 39 ; Gerhard Hahn & Renate Hahn: Neue Beobachtungen an Plagiaulacoidea (Multituberculata) des Ober-Juras 4. Ein Vertreter der Albion baataridae im Lusitanien Portugals. … 85 ; Bernard Krebs: Drescheratherium acutum gen. et sp. nov., ein neuer Eupanthotherier (Mammalia) aus dem Oberen Jura von Portugal. ... 91 ; Rolf Kohring: Neue Schildkröten-Eischalen aus dem Oberjura der Grube Guimarota (Portugal). ... 113 ; Thomas Martin: The premolars of Crusafontia cuencana (Dryolestidae, Mammalia) from the Early Cretaceous (Barremian) of Spain. ... 119 ; Spyridon M. Bellas, Karina Kussius, Julia K. Kommerell & Jürgen Kriwet: Integrated biostratigraphical approach of the Neogene Pigadia basin of Karpathos Island (Dodecanes Group, Greece) - Implications on the depositional palaeoenvironment based on calcareous nannofossils, ostracodes and facies development data with special references to Messinian fish assemblages. ... 129 ;
    Description: thesis
    Description: DFG, SUB Göttingen
    Keywords: ddc:560 ; Paläontologie
    Language: German , English
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  • 8
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    Selbstverlag Fachbereich Geowissenschaften, FU Berlin
    In:  Herausgeberexemplar
    Publication Date: 2024-04-17
    Description: REITNER, Joachim & KOHRING, Rolf: Prof. Dr. Gundolf ERNST zum 65. Geburtstag. Eine kritische Würdigung des Jubilars ... 5 ; VOIGT, Ehrhard & GORDON, Dennis P.: Ascancestor and Confusocella - two new genera of cheilostomate Bryozoa from the Upper Cretaceous with transitional frontal-shield morphologies ... 15 ; KENNEDY, William J. & KAPLAN, Ulrich: Pseudojacobites farmeryi (CRICK, 1905), ein seltener Ammonit des westfälischen und englischen Ober-Turon ... 25 ; SEIBERTZ, Ekbert & SPAETH, Christian: Die Kreide-Belemniten von Mexiko II. Belemniten des Turon Nord-Mexikos ... 45 ; WIESE, Frank & WILMSEN, Markus: Erstnachweis aus Europa von Litophragmatoceras incomptum (Ammonoidea, Kreide) aus dem Mittel-Cenoman von Liencres (Kantabrien, Nordspanien) ... 53 ; WIESE, Frank: Das mittelturone Romaniceras kallesi-Event im Raum Santander (Nordspanien): Lithologie, Stratigraphie, laterale Veränderung der Ammonitenassoziationen und Paläobiogeographie ... 61 ; KRÜGER, Fritz J.: Leere Oberkretazische Echiniden-Coronen als Habitat benthonischer Organismen ... 79 ; MEHL, Dorte & NIEBUHR, Birgit: Diversität und Wachstumsformen bei Coeloptychium (Hexactinellida, Lychniskosa) der Meiner Mulde (Untercampan, NW-Deutschland) und die Palökologie der Coeloptychidae ... 91 ; REHFELD, Ursula & OTTO, Armin: Distribution and preservation of siliceous sponges of the rhythmically bedded spongiolitic rocks in the Lower Campanian of northern Spain (Cantabria, Santander area): Response to autecology and sea level development ... 109 ; FECHNER, Glenn G.: Phytoplankton und Sporomorphen aus dem Cenoman-Basiskonglomerat von Bochum (Nordrheinwestfalen, Deutschland) ... 129 ; KEUPP, Helmut: Die kalkigen Dinoflagellaten-Zysten aus dem Ober-Alb der Bohrung Kirchrode 1/91 (zentrales Niedersächsisches Becken, NW-Deutschland) ... 155 ; VOIGT, Silke: Verbreitung humider und arider Klimate der nördlichen Hemisphäre während der Oberkreide ... 201 ; HORNA, Frank: Komplexer Nachweis einer Tufflage im Turon von Hoppenstedt ... 207 ; WRAY, David S. & WOOD, Christopher J.: Geochemical identification and correlation of tuff layers in Lower Saxony, Germany ... 215 ; MUTTERLOSE, Jörg & WIEDENROTH, Kurt: Die Bio- und Lithofazies der Unterkreide (Hauterive bis Apt) in NW-Deutschland ... 227 ; TRÖGER, Karl-Armin & VOIGT, Thomas: Event-und Sequenzstratigraphie in der Sächsischen Kreide... 255 ; SEIBERTZ, Ekbert: Towards the single-species boundary definition - a concept proposal with application to the Turonian-Coniacian stage boundary (Upper Cretaceous) ... 269 ; WOOD, Christopher J. & MORTIMORE, Rory N.: An anomalous Black Band succession (Cenomanian - Turonian boundary interval) at Melton Ross, Lincolnshire, eastern England and its international significance ... 277 ; KUTZ, Andreas: Kalk-Mergel-Rhythmite der Oberkreide (Campan und Maastricht) am Massiv von Oroz Betelu (N-Spanien, Provinz Navarra). Ein Exkursionsführer ... 289 ; WOLF, Ernst-Otto.: Sedimentologie, Paläogeographie und Faziesentwicklung der Allochthonite des Campan von Beckum/Zentrales Münsterland ... 305 ; KRIWET, Jürgen & GLOY, Uwe: Zwei mesopelagische Raubfische (Actinopterygii: Euteleostei) aus dem Unterturon der Kronsberg-Mulde bei Hannover / Misburg (NW-Deutschland) ... 335 ; RAUHUT, Oliver W.M.: Zur systematischen Stellung der afrikanischen Theropoden Carcharodontosaurus STROMER 1931 und Bahariasaurus STROMER 1934 ... 357 ; WERNER, Christa: Neue Funde von mesozoischen Wirbeltieren in Äthiopien... 377 ;
    Description: commemorativepublication
    Description: DFG, SUB Göttingen
    Keywords: ddc:560 ; Paläobiologie
    Language: German , English
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  • 9
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    Selbstverlag Fachbereich Geowissenschaften, FU Berlin
    In:  Herausgeberexemplar
    Publication Date: 2024-04-17
    Description: Contents ; List of Contributors ; Introduction ; I. General Problems of Sponge Biology. S. M. Efremova: Once more on the position among Metazoa - Gastrulation and germinal layers of sponges ; N. N. Marfenin: Sponges viewed in the light of up-to-date conception on coloniality ; A. V. Ereskovsky & G. P. Korotkova: The reasons of sponge sexual morphogenesis peculiarities II. Developmental Biology of Sponges. O. M. Ivanova-Kazas: Analysis of the sponges ontogeny at sexual reproduction ; R. P. Anakina: The cleavage specifity in embryos of the Barents Sea sponge Leucosolenia complicata Montagu (Calcispongiae, Calcaronea) ; L. V. Ivanova: New data about morphology and metamorphosis of the spongillid larvae (Porifera, Spongillidae). 1. Morphology of the free-swimming larvae ; L. V. Ivanova: New data about morphology and metamorphosis of the spongillid larvae (Porifera, Spongillidae). 2. The metamorphosis of the spongillid larvae ; L. V. Ivanova & V. V. Semenov: Feeding habits of the larvae of sponges ; N. A. Sizova & A. V. Ereskovsky: Ultrastructural peculiarities of the early embryogenesis in a White Sea sponge Halisarca dujardini (Demospongiae, Dendroceratida) ; III. Ecology of Sponges. R. P. Anakina & E. I. Slepian: Spiculas' malformations of freshwater sponges as indicators of water environment in St. Petersburg City ; A. S. Plotkin & A. V. Ereskovsky: Ecological aspects of asexual reproduction of the White Sea sponge Polymastia mammillaris (Demospongiae, Tetractinomorpha) in Kandalaksha Bay ; I. S. Smirnov & V. M. Koltun: Symbiosis of the antarctic sponge genus lophon (Porifera) and ophiuroid genus Ophiurolepis (Ophiuroidea, Echinodermata) ; IV. Palaeontology and Systematics. L. V. Bolshakova: Stromatoporoids - the fossil sponges ; E. V. Veinberg, 0. M. Khlystov, S. S. Vorobyova, E. G. Kornakova, 0. V. Levina, S. M. Efremova, & M. A. Grachev: Distribution of sponge spicules in sediments of the underwater Akademichesky ridge of Lake Baikal ; K. R. Tabachnik & C. Levi: Amphidiscophoran Hexasterophora (Part I & II) ;
    Description: conference
    Description: DFG, SUB Göttingen
    Keywords: ddc:560 ; Porifera ; Paläobiologie
    Language: English
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  • 10
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    Selbstverlag Fachbereich Geowissenschaften, FU Berlin
    In:  Herausgeberexemplar
    Publication Date: 2024-04-17
    Description: Baron-Szabo, R.C. & Steuber, T.: Korallen und Rudisten aus dem Apt im tertiären Flysch des Pamass-Gebirges bei Delphi-Arachowa (Mittelgriechenland) … 3 ; Fechner, G.G.: Septarienton und Stettiner Sand als Fazieseinheiten im Rupelium der östl. Mark Brandenburg: Palynologisch-fazielle Untersuchungen bei Bad Freienwalde ... 77 ; Fischer, K.: Das Mammut (Mammuthus primigenius Blumenbach, 1799) von Klinge bei Cottbus in der Niederlausitz (Land Brandenburg) ... 121 ; Frydas, D. & Keupp, H.: Biostratigraphical results in Late Neogene deposits of NW Crete, Greece, based on calcareous nannofossils ... 169 ; Kohring, R.: Structure and Biomineralization of Eggshell of Elaphe guttata (Linnö 1766) (Serpentes: Colubridae) ... 191 ; Kriiger, F.J.: Parietale Modifikationen bei Echinocorys obliqua (Nilssohn 1828) (Echinoidea, Holasterida) und ihre Beziehungen zur Weichkörper-Organisation ... 201 ; May, A. & Becker, R.T.: Ein Korallen-Horizont im Unteren Bänderschiefer (höchstes Mitteldevon) von Hohenlimburg-Elsey im Nordsauerland (Rheinisches Schiefergebirge) ... 209 ; Mehl, D. & Reitner, J.: Observations on Astraeospongium meniscum (Roemer, 1848) from the Silurian of western Tennessee: Constructional morphology and palaeobiology of the Astraeospongiidae (Calcarea, Heteractinellidae) 243 ; Neumann, C.: The mode of life and paleobiogeography of the genus Douvillaster Lambert (Echinoidea: Spatangoida) as first recorded in the Lower Cretaceous (Albian) of Spain ... 257 ; Niebuhr, B.: Die Scaphiten (Ammonoidea, Ancyloceratina) des höheren Obercampan der Lehrter Westmulde östlich Hannover (N-Deutschland) ... 267 ; Rehfeld, U.: Der Ausgangschemismus fossiler peloidaler und aphanitischer Zemente - eine geochemische Analyse an jurassischen und kretazischen Karbonatgesteinen ... 289 ; Rehfeld, U.: Steuerungsfaktoren bei der Dissoziierung des Skelettes und der Zementation des Gewebes bei jurassischen und kretazischen Kieselschwämmen ... 303 ; Rehfeld, U.: Paläoredoxpotential während der Diagenese von jurassischen und kretazischen spongiolithischen Biokonstruktionen ... 321 ; Werner, C. & Bardet, N.: New record of elasmosaurs (Reptilia, Plesiosauria) in the Maastrichtian of the Western Desert of Egypt ... 335 ; Wiese, F.: Preliminary Data on the Turanian Ammonite Biostratigraphy of the Liencres Area (Province Cantabria, Northern Spain) ... 343 ; Wilmsen, M.: Flecken-Riffe in den Kalken der „Formaciön de Altamira“ (Cenoman, Cobreces/Tofianes-Gebiet, Prov. Kantabrien, Nord-Spanien): Stratigraphische Position, fazielle Rahmenbedingungen und Sequenzstratigraphie ... 353 ; Rauhut, O.W.M.: Bibliographie 1995, Institut für Paläontologie, Freie Universität Berlin ... 375 ;
    Description: research
    Description: DFG, SUB Göttingen
    Keywords: ddc:560 ; Paläobiologie ; Paläontologie
    Language: German , English
    Type: doc-type:book
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  • 11
    facet.materialart.
    Unknown
    Selbstverlag Fachbereich Geowissenschaften, FU Berlin
    In:  Herausgeberexemplar
    Publication Date: 2024-04-17
    Description: SCHUDACK, Michael E.: Neue mikropaläontologische Beiträge (Ostracoda, Charophyta) zum Morrison-Ökosystem (Oberjura des Western Interior, USA) ... 389 ; BARTHOLDY, Jan, BELLAS, Spyridon M., MERTMANN, Dorothee, MACHANIEC, Elsbieta & MANUTSOGLU, Emmanuil: Fazies- Entwicklung und Biostratigraphie einer Sequenz eozäner Sedimente im Steinbruch Pod Capkami, Tatra-Gebirge, Polen ... 409 ; SCHULZ, Eberhard: Palynologische Untersuchungen des marinen Mittelrhäts im Creuzburger Graben bei Eisenach (W-Thüringen) ... 427 ; KRUTZSCH, Wilfried: Verbreitung der Trockenzonen im Kainophytikum - Eine Skizze ... 439 ; KOHRING, Rolf & SCHLÜTER, Thomas: Erhaltungsmechanismen känozoischer Insekten in fossilen Harzen und Sedimenten ... 457 ; ZILS, Wolfgang, WERNER, Christa, MORITZ, Andrea & SAANANE, Charles: Orientierende Tendaguru-Expedition 1994 ... 483 ; KIENEL, Ulrike, REHFELD, Ursula & BELLAS, Spyridon M.: The Miocene Blue Clay Formation of the Maltese Islands: Sequence-stratigraphic and palaeoceanographic implications based on calcareous nannofossil stratigraphy ... 533 ; SOUJON, Andr6, MANUTSOGLU, Emmanuil, REITNER, Joachim & JACOBSHAGEN, Volker: Lithistide Demospongiae aus der metamorphen Plattenkalk-Serie der Trypali Ori (Kreta/Griechenland) … 559 ; BARON-SZABO, Rosemarie C.: Taxonomy and Palaeoecology of Late Miocene corals of NW-Crete (Gramvoüssa, Roka- and Koukounaras- Fms.) ... 569 ; MANUTSOGLU, Emmanuil, MERTMANN, Dorothee, SoujON, Andre, DORNSIEPEN, Ulrich Friedrich & JACOBSHAGEN, Volker: Zur Nomenklatur der Metamorphite auf der Insel Kreta, Griechenland ... 579 ; FRYDAS, D., KONTOPOULOS, N., STAMATOPOULOS, L., GUERNET, C. & VOLTAGGIO, M.: Middle-Late Pleistocene sediments in the northwestern Peloponnesus, Greece. A combined study of biostratigraphical, radiochronological and sedimentological results ... 589 ; BECKER, R. Thomas: Taxonomy and Evolution of Late Famennian Tornocerataceae (Ammonoidea) ... 607 ; GRÖSCHKE, Manfred & KAPILIMA, Saldi: Ammoniten aus dem Septarienmergel (Kimmeridgium) des Mandawa-Mahokondo-Gebietes bei Nchia, Südtansania ... 645 ; KEUPP, Helmut & RIEDEL, Frank: Nautilus pompilius in captivity: a case study of abnormal shell growth ... 663 ; KRIWET, Jürgen: Beitrag zur Kenntnis der Fisch-Fauna des Ober-Jura (unteres Kimmeridge) der Kohlengrube Guimarota bei Leiria, Mittel-Portugal: 1 . Asteracanthus biformatus n. sp. (Chondrichthyes: Hybodontoidea) ... 683 ; MARTIN, Thomas: Incisor enamel microstructure and phylogenetic interrelationships of Pedetidae and Ctenodactyloidea (Rodentia) ... 693 ; ERESKOVSKY, Alexander V.: Materials to the Faunistic Study of the White and Barents seas sponges. 5. Quantitative Distribution ... 709 ; ERESKOVSKY, Alexander V.: Materials to the Faunistic Study of the White and Barents seas sponges. 6. The origin of the White and Barents seas sponge faunas ... 715 ; WÖRHEIDE, Gert: Bi- und multivariate Analyse borealer und mediterraner Populationen der Echinocardium cordatum - Gruppe (Echinoidea; Spatangoida) ... 731 ; HILBRECHT, Heinz: Computergestützte Methoden in der Morphometrie ... 765 ; CLAUSING, Andreas: Some critical notes on qualitative versus quantitative analysis in terrestrial palaeoecology ... 781 ; GLOY, Uwe: Bibliographie 1994, Institut für Paläontologie, Freie Universität Berlin ... 787 ;
    Description: commemorativepublication
    Description: DFG, SUB Göttingen
    Keywords: ddc:560 ; Paläobiologie
    Language: German , English
    Type: doc-type:book
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  • 12
    facet.materialart.
    Unknown
    Selbstverlag Fachbereich Geowissenschaften, FU Berlin
    In:  Herausgeberexemplar
    Publication Date: 2024-04-17
    Description: At the beginning of Late Jurassic both the Lochen (LA) and the Cracow areas (CA) were palaeotopographic highs in an epicontinental basin located at the stable northern margin of the Tethyan Ocean. The topographically high position of the LA was probably caused by intensive carbonate production which proceeded on a small sea-floor bulge located close to the boundary between middle and lower parts of the low-angle carbonate ramp. Lack of deep structural control of this rise caused prograding facial unification during the Oxfordian and Kimmeridgian and led to gradual disappearance of the LA individuality in relation to the neighbouring areas. The topographical high of the CA resulted from anomalously low subsidence rate in comparison to the adjacent areas which has lasted at least for the whole Oxfordian. Low subsidence directly gave rise to the development of a barrier (so-called Cracovian Platform) which separated the interior basin in the north from the deeper parts of the basin in the south. Topography of the Polish part of epicontinental basin along the Czestochowa-Cracow line corresponds to the low-gradient rimmed carbonate shelf which graded laterally (to the northeast and east) into the low-angle carbonate ramp. Stratigraphic subdivision of Upper Jurassic strata is very precise in the LA and rather poor in the CA due to scarcity of ammonites in the massive facies which predominates in the latter area. However, ammonite fauna from both areas belongs to the same German-Polish Submediterranean Subprovince which allows to attempt the correlation of lithologies and determination of factors which controlled deposition. Both the studied areas show distinct differences in the development of carbonate buildups. In the LA the main components of carbonate buildups during whole Oxfordian and the Early Kimmeridgian were siliceous sponges and microbolites whilst in the CA the flourishing growth of microbolites and gradual decline of siliceous sponges domination took place during the Late Oxfordian. The sediment was initially diversified into the two varieties: that formed by siliceous sponges and the microbolites incipient rigid framework, and the soft mud. In such carbonate buildups stromatactis cavities might have developed even in early diagenesis due to internal erosion of the soft mud. The principal reason of the internal erosion was turbulent water flow through the sediment. However, in generally low-energy sedimentary environments such flow could be triggered by submarine gravity flows or strong bottom currents. Pseudonodular textures encountered in carbonate buildups in both the areas resulted from shallow-burial diagenesis. During the burial diagenesis some parts of the sediment has been disintegrated under the pressure of overlying strata owing to the existing open spaces and different susceptibility to compaction showed by the incipient rigid framework and the soft sediment. Deposition in the LA was controlled mainly by sea-level pulses and ecological factors. In the CA principal control was provided by subsidence rate supported by synsedimentary tectonics, sea-level changes and ecological factors. All these controlling factors were variable in time which provoked changes in carbonate production rates from intensive, aggradational growth of the buildups to drowning of the carbonate ramp and rimmed shelf. The drowning of carbonate ramp on which the LA was located took place at the Oxfordian/Kimmeridgian break. It is documented by spectacular development of redeposited pelagites of skeletal-calciturbidites type with abundant fragments of Saccocoma sp. which have appeared for the first time in mass quantities in the Upper Jurassic. By analogy, it can be inferred that in the CA similar Saccocoma-calciturbidites prove the drowning of rimmed shelf related to the same trangressive event at the Oxfordian/Kimmeridgian break.
    Description: Zu Beginn des Ober-Jura waren das Lochengebiet (Schwäbische Alb) und der Raum Krakau (Südpolen) übereinstimmend Hochgebiete eines epikontinentalen Beckens auf dem passiven nördlichen Schelf der Tethys. Die topographische Hochposition des Lochengebietes war vermutlich durch eine hohe Karbonat-Produktion bedingt, welche auf einer schmalen submarinen Schwelle nahe dem Übergangsbereich zwischen unterem und mittlerem Abschnitt einer flach geneigten Karbonatrampe erfolgte. Während des Oxfordiums und Kimmeridgiums war die Lochenschwelle tektonisch inaktiv und ermöglichte einen zunehmenden Faziesausgleich mit den benachbarten Gebieten und führte dadurch zu einer successiven Aufgabe ihrer individuellen Entwicklung. Die Hochposition der Krakau-Region resultierte aus ihrer im Vergleich zur Umgebung ungewöhnlich geringen Subsidenzrate, welche mindestens während des gesamten Oxfordiums anhielt. Die geringe Subsidenz war unmittelbare Ursache für die Entwicklung einer Barriere (die sogenannte Krakau-Plattform), welche das seichtere Innenschelf-Becken im Norden von den tieferen Beckenanteilen im Süden trennte. Die Topographie des polnischen Anteils dieses epikontinentalen Beckens entsprach entlang der Czestochowa-Krakau-Linie einem „low-gradient rimmed carbonate shelf, der nach Nordosten und Osten lateral in eine flache Karbonatrampe überging. Die stratigraphische Gliederungsmöglichkeit der Ober-Jura-Schichfolge ist im Lochengebiet gut und feinauflösend, in der Krakau-Region dagegen, in der die Massenfazies vorherrscht, aufgrund der selteneren Ammonitenfunde zum Teil problematisch. Ungeachtet dessen, gehören die Ammoniten-Vergesellschaftungen beider Regionen derselben deutsch-polnischen, submediterranen Faunensubprovinz an und ermutigen zu einer Korrelation beider lithologischer Abfolgen und einer vergleichenden Abstraktion der Steuermechanismen für die Sedimentation. Beide Gebiete zeigen deutliche Unterschiede in der Entwicklung von karbonatischen Buildups. Im Lochen-Gebiet stellen während des Oxfordiums und Unter-Kimmeridgiums Kieselschwämme und Mikrobolithe die Hauptkomponenten der Riffstrukturen, während in der Krakau-Region die Bedeutung der Mikrobolithe und Kieselschwämme während des Ober-Oxfordiums successive abnimmt. Ursprünglich erfolgte eine Differenzierung der Riffstrukturen in einen autochthonen Hartsubstrat-Anteil, in dem Kieselschwämme und Mikrobolithe eine rigides Gerüst stellten, und in schlammiges Weichsubstrat. Innerhalb der Riffkörper konnten sich wohl frühdiagenetisch durch die interne Erosion der Schlamm-Anteile Stromatactis-Gefüge bilden. Grundsätzlich kann eine solche interne Erosion auf turbulente Porenwasserströme zurückgeführt werden. In den vorliegenden sedimentären Stillwasser-Milieus könnte ein solcher Porenwasserstrom durch submarine Schuttströme oder starke Bodenströmungen ausgelöst worden sein. Pseudonodulare Strukturen, wie sie in den Buildups beider Untersuchungsgebiete angetroffen wurden, werden durch eine flache Versenkungsdiagenese erklärt. Während dieser Vorgänge wurden unter dem Druck der Sedimentauflast aufgrund des vorhandenen, offenen Porenraumes und der unterschiedlichen Kompaktion von primär zementierten Riffkalken und des mergeligen Weichsubstrates Karbonatanteile gelöst. Das Sedimentationsgeschehen wurde in der Lochen-Region vor allem durch Meeresspiegel-Schwankungen und ökologische Parameter beeinflußt. In der Krakau-Region konnte als hauptsächlicher Kontrollfaktor die Subsidenzrate erkannt werden, in deren Gefolge synsedimentäre Tektonik, Änderungen von Meeresspiegel und der ökologischen Faktoren einhergingen. Veränderungen dieser Steuerfaktoren in der Zeit beeinflußten jeweils die Rate der Karbonatproduktion von intensiv (Aggradation der Buildups) bis zum Ertrinken der Karbonatrampe bzw. des Schelfrandes. Das Abtauchen der Karbonatrampe setzte in der Lochen-Region an der Oxfordium-Kimmeridgium-Wende ein. Es wird durch eine auffällige sedimentäre Entwicklung dokumentiert: Resedimentation pelagischer Kalke (skeletal calciturbidites), die häufig Saccocoma-Reste enthalten. Erste Massenvorkommen von Saccocoma treten in der Erdgeschichte im Oberjura auf. Ähnliche Saccoco/na-Kalkturbidite an der Oxfordium-Kimmeridgium-Grenze markieren in der Krakau-Region das Abtauchen des „rimmed shelf. Sie können auf dasselbe transgressive Ereignis zurückgeführt werden.
    Description: thesis
    Description: DFG, SUB Göttingen
    Keywords: ddc:560 ; ddc:554 ; Paläobiologie
    Language: English
    Type: doc-type:book
    Format: 116
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  • 13
    Publication Date: 2024-04-17
    Description: The present study considered calcareous nannofossils from material represented by outcrops of Flysch successions of the External Hellenides belt in the area of the Ionian Zone (I.Z.), northwestern Greece. The studied outcrops are located in Epirus mainland and the Ionian island Korfu. Three subdivisions have been traditionally in literature distinguished in the I.Z., the Internal, Middle and External (moving from east to the west), each of which was subsequently recognized in the Flysch deposits as well. Aim of the study was, a refinement of the current biostratigraphic resolution of the area through detailed taxonomic descriptions and consequently, a reliably better correlation of the investigated sedimentary deposits with the help of calcareous nannofossils. The biostratigraphic data were also processed semiquentitatively (frequency variations and distributions), in order to accurately determine important biohorizons. For this purpose, the nannofossils were studied under the LM and the SEM, from ten closely sampled sections representing clastic sequences of all the three subdivisions of the I.Z. The investigated sections are situated at about 39° northern mid latitudes, a fact which resulted to mixed nannoflora assemblages of low and high latitudes character. The sections are namely: Elatos, Korfovouni (Internal I.Z. subdivision), Kato Despotiko, Strouga Goumenou and Ekklisia (Middle I.Z. subdivision), lower and upper Argyrotopos, National Road, Monos and Anacharavi (External I.Z. subdivision). They were found to range in age from the latest Eocene to the Early Miocene. Based on the systematic palaeontology, 107 species of calcareous nannofossils were observed and documented in the studied material. Among them, a new species Rhabdosphaera epirotica sp. nov. was described, and four recombinations were proposed. Moreover, two calcareous dinoflagellate cysts, Cervisiella saxea and Obliquipithonella sp. were reported for the first time from the I.Z. in Greece. Despite the mid latitude palaeogeographic position of the sections, all the conventional calcareous nannofossil zonal markers for the Oligocene and Early Miocene were recorded, although some in fewer abundances than in low latitudes. Improving the biostratigraphic reliability, a new zonational scheme was here developed and proposed for the Oligocene to Early Miocene interval. It was mainly established on use of redefined biohorizons and composed of five zones and five subzones following below: 1. Latest Eocene: Ericsonia formosa Partial-range Zone, 2. Oligocene: llselithina fusa / Ericsonia formosa Concurrent-range Zone, Ericsonia formosa-Reticulofenestra umbilicus/R. hillae Interval Zone, Cyclicargolithus abisectus Partial-range Zone, including the subzones: Rhabdosphaera spp. Interval Subzone, and Sphenolithus predistentus Interval Subzone, Reticulofenestra scissura Interval Zone, including the Sphenolithus delphix Abundance Subzone, and 3. Earliest Miocene: Triquetrorhabdulus spp. Partial-range Subzone Sphenolithus conicus Interval Subzone. Based on a new biohorizon of the absolute First Occurrence (FO) of llselithina fusa, the Eocene/Oligocene (E/O) boundary was identified in the lower part of the Argyrotopos section. On the absence of disc-shaped discoasters, the I. fusa biohorizon represented a better approximation of the boundary, which was clearly correlated with the other studied sections of the three subdivisions of the I.Z. The Oligocene/Miocene (O/M) boundary was identified in the Monos section located in the Plataria syncline (External I.Z.), but Early Miocene strata were recorded in the Middle I.Z. as well. This boundary was placed at the Last Common Occurrence (LCO) biohorizon of the Reticulofenestra scissura. Moreover, six associate bioevents were reported near the O/M boundary, among them the highest occurrence of I. fusa, located above the boundary, in the Anacharavi section of Korfu island (western part of the External I.Z.). For the first time were evaluated reworked together with „autochton“ taxa of calcareous nannofossils in Greece. Maximum diversity values along each of the studied sections, have shown increased reworking and erosional processes in the Internal subdivision of the I.Z. than in the Middle and the External ones. This is interpreted to be connected with the higher tectonic instability along the Pindos thrust to the east, in relation to the central and western parts of the Ionian basin mainly during the Oligocene.
    Description: Die der vorliegenden Arbeit zugrundeliegenden kalkigen Nannofossilien stammen von Flyschabfolgen der Externen Helleniden (Ionische Zone) Nordwest-Griechenlands.So wurden in die Untersuchung Aufschlüsse des Festlandes in Epirus und der Ionischen Insel Korfu aus dem stratigraphischen Intervall vom obersten Eozän bis zum untersten Miozän einbezogen. Die Ionische Zone (I.Z.) wird traditionell von Osten nach Westen in die Interne, Mittlere und Externe Subzone unterteilt. Diese Einteilung läßt sich auch auf die Flyschablagerungen übertragen. Ziel der Arbeit ist eine Verfeinerung der bestehenden Biostratigraphie durch detaillierte taxonomische Beschreibungen, um damit eine bessere Korrelation der untersuchten Ablagerungen mit Hilfe der kalkigen Nannofossilien zu erreichen. Mit einer halbquantitativen Erfassung der biostratigraphischen Daten (Häufigkeitsvariation und -Verteilung) gelingt es darüberhinaus, einzelne Biohorizonte genauer zu definieren. Zu diesem Zwecke wurde das kalkige Nannoplankton von zehn eng-beprobten Profilen aus klastischen Abfolgen aller drei Subzonen der I. Z. unter dem Licht- und Elektronenmikroskop (REM) untersucht. Die Profile im einzelnen sind: Elatos und Korfovouni (Interne Subzone), Kato Despotiko, Strouga Goumenou und Ekklisia (Mittlere Subzone), Unter bzw. Ober Argyrotopos, National Road, Monos und Anacharavi (Externe Subzone). Zur Ablagerungszeit befanden sich die untersuchten Profile in einer nördlichen Paläobreite um 39°, was zu einer gemischten Nannoflora aus charakteristischen Vertretern niedriger und höherer Breiten führte. In dem untersuchten Material konnten insgesamt 107 Spezies von kalkigem Nannoplankton gefunden und dokumentiert werden. Die Art Rhabdosphaera epirotica nov. sp.wird neu beschrieben und vier Rekombinationen werden vorgeschlagen. Darüberhinaus konnten zwei kalkige Dinoflagellatenzysten Cervisiella saxea und Obliquipithonella sp. zum ersten Mal in der I.Z. nachgewiesen werden. Trotz der paläogeographischen Position der Profile in mittleren Paläobreitenbereich konnten alle konventionellen Zonenleitformen des kalkigen Nannoplanktons für das Oligozän und das Untermiozän gefunden werden, einige davon jedoch in geringerer Häufigkeit als in den niedrigeren Breiten. Durch die Verbesserung der biostratigraphischen Genauigkeit wird hier ein neues mediterranes Zonenschema für das Oligozän und das Untermiozän entwickelt, das im wesentlichen auf neu definierten Biohorizonten basiert. Es enthält fünf Zonen und fünf Subzonen: 1. Jüngstes Eozän: Ericsonia formosa Partial-range Zone, 2. Oligozän: llselithina fusa/Ericsonia formosa Concurrent-range Zone, Ericsonia formosa-Reticulofenestra umbilicus/R. hillae Interval Zone, Cyclicargolithus abisectus Partial-range Zone, gegliedert in den Subzonen: Rhabdosphaera spp. Interval Subzone, und Sphenolithus predistentus Interval Subzone, Reticulofenestra scissura Interval Zone, die eine Subzone enthält: Sphenolithus delphix Abundance Subzone, und 3. Ältestes Miozän: Triquetrorhabdulus spp. Partial-range Subzone Sphenolithus conicus Interval Subzone. Mit dem ersten Auftreten (FO) von llselithina fusa wird ein neuer Biohorizont definiert, mit dem die Grenze Eozän/Oligozän (E/O) in dem unteren Teil des Argyrotopos-Profils nachgewiesen wird. Trotz der Abwesenheit von scheibenförmigen Discoasteriden läßt sich nun diese Grenze mit dem I. fusa-Biohorizont besser fassen und kann eindeutig mit den Profilen in den beiden anderen Subzonen der I.Z. korreliert werden. Die Oligozän/Miozän-Grenze (O/M) konnte im Monos-Profil der Plataria-Synklinale (Externe I.Z.) charakterisiert werden. Untermiozän ließ sich aber auch in der Mittleren Subzone nachweisen. Die Grenze O/M ist durch das letzte Vorkommen (LCO) von Reticulofenestra scissura bestimmt. Sechs assoziierte Bioevents fallen in diesen Grenzbereich, darunter im Anacharavi-Profil der Insel Korfu (Westteil der Externen Subzone) das jüngste Vorkommen von I. fusa, unmittelbar über der Grenze O/M. Zum erstem Mal für Griechenland konnten aufgearbeitete Taxa von kalkigen Nannofossilien zusammen mit den autochthonen Taxa nachgewiesen werden. Ein Vergleich der maximalen Diversitätswerte in den untersuchten Profilen zeigt eine signifikant höhere Aufarbeitungsrate in der Internen Subzone gegenüber der Mittleren und Externen Subzonen. Dieser Umstand dürfte mit der höheren tektonischen Instabilität entlang der Pindos-Decken-Front im Osten des Arbeitsgebietes Zusammenhängen.
    Description: thesis
    Description: DFG, SUB Göttingen
    Keywords: ddc:560 ; Tertiär ; Flysch ; Nannofossil ; Biostratigraphie ; Systematik ; Paläobiologie ; Paläontologie
    Language: English
    Type: doc-type:book
    Format: 206
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  • 14
    facet.materialart.
    Unknown
    Selbstverlag Fachbereich Geowissenschaften, Freie Universität Berlin
    In:  Herausgeberexemplar
    Publication Date: 2024-02-14
    Description: Die Geologie des Arbeitsgebietes Derudeb ist mit Methoden der Fernerkundung und Geo- Informationssystemen auf der Grundlage einer begrenzten Datenbasis untersucht worden. Als Ergebnis wurde ein geologisches Kartenblatt im Maßstab 1 : 250 000 erstellt. Das Gebiet der südlichen Red Sea Hills, im NE des Sudan gelegen, bildet den nubischen Teil des Arabisch-Nubischen Schildes.
    Description: thesis
    Description: DFG, SUB Göttingen
    Keywords: ddc:556 ; ddc:550.285 ; Sudan ; GIS ; Spektralmessungen ; spectral analysis
    Language: English
    Type: doc-type:book
    Format: 122
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  • 15
    Call number: 9783662031674 (e-book)
    Type of Medium: 12
    Pages: 1 Online-Ressource (336 Seiten) , Illustrationen
    ISBN: 9783662031674 , 978-3-662-03167-4
    Language: English
    Note: Contents Foreword Preface Contributors I Introduction 1 The Development of Climate Research / by ANTONIO NAVARRA 1.1 The Nature of Climate Studies 1.1.1 The Big Storm Controversy 1.1.2 The Great Planetary Oscillations 1.2 The Components of Climate Research 1.2.1 Dynamical Theory 1.2.2 Numerical Experimentation 1.2.3 Statistical Analysis 2 Misuses of Statistical Analysis in Climate Research / by HANS VON STORCH 2.1 Prologue 2.2 Mandatory Testing and the Mexican Hat 2.3 Neglecting Serial Correlation 2.4 Misleading Names: The Case of the Decorrelation Time 2.5 Use of Advanced Techniques 2.6 Epilogue II Analyzing The Observed Climate 3 Climate Spectra and Stochastic Climate Models / by CLAUDE FRANKIGNOUL 3.1 Introduction 3.2 Spectral Characteristics of Atmospheric Variables 3.3 Stochastic Climate Model 3.4 Sea Surface Temperature Anomalies 3.5 Variability of Other Surface Variables 3.6 Variability in the Ocean Interior 3.7 Long Term Climate Changes 4 The Instrumental Data Record: Its Accuracy and Use in Attempts to Identify the "CO2 Signal" / by PHIL JONES 4.1 Introduction 4.2 Homogeneity 4.2.1 Changes in Instrumentation, Exposure and Measuring Techniques 4.2.2 Changes in Station Locations 4.2.3 Changes in Observation Time and the Methods Used to Calculate Monthly Averages 4.2.4 Changes in the Station Environment 4.2.5 Precipitation and Pressure Homogeneity 4.2.6 Data Homogenization Techniques 4.3 Surface Climate Analysis 4.3.1 Temperature 4.3.2 Precipitation 4.3.3 Pressure 4.4 The Greenhouse Detection Problem 4.4.1 Definition of Detection Vector and Data Used 4.4.2 Spatial Correlation Methods 4.5 Conclusions 5 Interpreting High-Resolution Proxy Climate Data - The Example of Dendr о climatology / by KEITH R. BRIFFA 5.1 Introduction 5.2 Background 5.3 Site Selection and Dating 5.4 Chronology Confidence 5.4.1 Chronology Signal 5.4.2 Expressed Population Signal 5.4.3 Subsample Signal Strength 5.4.4 Wider Relevance of Chronology Signal 5.5 "Standardization" and Its Implications for Judging Theoretical Signal 5.5.1 Theoretical Chronology Signal 5.5.2 Standardization of "Raw" Data Measurements 5.5.3 General Relevance of the "Standardization" Problem 5.6 Quantifying Climate Signals in Chronologies 5.6.1 Calibration of Theoretical Signal 5.6.2 Verification of Calibrated Relationships 5.7 Discussion 5.8 Conclusions 6 Analysing the Boreal Summer Relationship Between World wide Sea-Surface Temperature and Atmospheric Variability / by M. NEIL WARD 6.1 Introduction 6.2 Physical Basis for Sea-Surface Temperature Forcing of the Atmosphere 6.2.1 Tropics 6.2.2 Extratropics 6.3 Characteristic Patterns of Global Sea Surface Temperature: EOFs and Rotated EOFs 6.3.1 Introduction 6.3.2 SST Data 6.3.3 EOF method 6.3.4 EOFs p^→1 - p^→3 6.3.5 Rotation of EOFs 6.4 Characteristic Features in the Marine Atmosphere Associated with the SST Patterns p^→2, p ^→3 and p^→2R in JAS 6.4.1 Data and Methods 6.4.2 Patterns in the Marine Atmosphere Associated with EOF p^→2 6.4.3 Patterns in the Marine Atmosphere Associated with EOF p^→3 6.4.4 Patterns in the Marine Atmosphere Associated with Rotated EOF p^→2R 6.5 JAS Sahel Rainfall Links with Sea-Surface Temperature and Marine Atmosphere 6.5.1 Introduction 6.5.2 Rainfall in the Sahel of Africa 6.5.3 High Frequency Sahel Rainfall Variations 6.5.4 Low Frequency Sahel Rainfall Variations 6.6 Conclusions III Simulating and Predicting Climate 7 The Simulation of Weather Types in GCMs : A Regional Approach to Control-Run Validation / by KEITH R. BRIFFA 7.1 Introduction 7.2 The Lamb Catalogue 7.3 An "Objective" Lamb Classification 7.4 Details of the Selected GCM Experiments 7.5 Comparing Observed and GCM Climates 7.5.1 Lamb Types 7.5.2 Temperature and Precipitation 7.5.3 Relationships Between Circulation Frequencies and Temperature and Precipitation 7.5.4 Weather-Type Spell Lengths and Storm Frequencies 7.6 Conclusions 7.6.1 Specific Conclusions 7.6.2 General Conclusions 8 Statistical Analysis of GCM Output / by CLAUDE FRANKIGNOUL 8.1 Introduction 8.2 Univariate Analysis 8.2.1 The i-Test on the Mean of a Normal Variable 8.2.2 Tests for Autocorrelated Variables 8.2.3 Field Significance 8.2.4 Example: GCM Response to a Sea Surface Temperature Anomaly 8.3 Multivariate Analysis 8.3.1 Test on Means of Multidimensional Normal Variables 8.3.2 Application to Response Studies 8.3.3 Application to Model Testing and Intercomparison 9 Field Intercomparison / by ROBERT E . LIVEZEY 9.1 Introduction 9.2 Motivation for Permutation and Monte Carlo Testing 9.2.1 Local vs. Field Significance 9.2.2 Test Example 9.3 Permutation Procedures 9.3.1 Test Environment 9.3.2 Permutation (PP) and Bootstrap (BP) Procedures 9.3.3 Properties 9.3.4 Interdependence Among Field Variables 9.4 Serial Correlation 9.4.1 Local Probability Matching 9.4.2 Times Series and Monte Carlo Methods 9.4.3 Independent Samples 9.4.4 Conservatism 9.5 Concluding Remarks 10 The Evaluation of Forecasts / by ROBERT E. LIVEZEY 10.1 Introduction 10.2 Considerations for Objective Verification 10.2.1 Quantification 10.2.2 Authentication 10.2.3 Description of Probability Distributions 10.2.4 Comparison of Forecasts 10.3 Measures and Relationships: Categorical Forecasts 10.3.1 Contingency and Definitions 10.3.2 Some Scores Based on the Contingency Table 10.4 Measures and Relationships: Continuous Forecasts 10.4.1 Mean Squared Error and Correlation 10.4.2 Pattern Verification (the Murphy-Epstein Decomposition) 10.5 Hindcasts and Cross-Validation 10.5.1 Cross-Validation Procedure 10.5.2 Key Constraints in Cross-Validation 11 Stochastic Modeling of Precipitation with Applications to Climate Model Downscaling / by DENNIS LETTENMAIER 11.1 Introduction 11.2 Probabilistic Characteristics of Precipitation 11.3 Stochastic Models of Precipitation 11.3.1 Background 11.3.2 Applications to Global Change 11.4 Stochastic Precipitation Models with External Forcing 11.4.1 Weather Classification Schemes 11.4.2 Conditional Stochastic Precipitation Models 11.5 Applications to Alternative Climate Simulation 11.6 Conclusions IV Pattern Analysis 12 Teleconnections Patterns / by ANTONIO NAVARRA 12.1 Objective Teleconnections 12.2 Singular Value Decomposition 12.3 Teleconnections in the Ocean-Atmosphere System 12.4 Concluding Remarks 13 Spatial Patterns: EOFs and CCA / by HANS VON STORCH 13.1 Introduction 13.2 Expansion into a Few Guess Patterns 13.2.1 Guess Patterns, Expansion Coefficients and Explained Variance 13.2.2 Example: Temperature Distribution in the Mediterranean Sea 13.2.3 Specification of Guess Patterns 13.2.4 Rotation of Guess Patterns 13.3 Empirical Orthogonal Functions 13.3.1 Definition of EOFs 13.3.2 What EOFs Are Not Designed for 13.3.3 Estimating EOFs 13.3.4 Example: Central European Temperature 13.4 Canonical Correlation Analysis 13.4.1 Definition of Canonical Correlation Patterns 13.4.2 CCA in EOF Coordinates 13.4.3 Estimation: CCA of Finite Samples 13.4.4 Example: Central European Temperature 14 Patterns in Time : SSA and MSSA / by ROBERT VAUTARD 14.1 Introduction 14.2 Reconstruction and Approximation of Attractors 14.2.1 The Embedding Problem 14.2.2 Dimension and Noise 14.2.3 The Macroscopic Approximation 14.3 Singular Spectrum Analysis 14.3.1 Time EOFs 14.3.2 Space-Time EOFs 14.3.3 Oscillatory Pairs 14.3.4 Spectral Properties 14.3.5 Choice of the Embedding Dimension 14.3.6 Estimating Time and Space-Time Patterns 14.4 Climatic Applications of SSA 14.4.1 The Analysis of Intraseasonal Oscillations 14.4.2 Empirical Long-Range Forecasts Using MSSA Predictors 14.5 Conclusions 15 Multivariate Statistical Modeling : POP-Model as a First Order Approximation / by JIN-SONG VON STORCH 15.1 Introduction 15.2 The Cross-Covariance Matrix and the Cross-Spectrum Matrix 15.3 Multivariate AR(1) Process and its Cross-Covariance and Cross-Spectrum Matrices 15.3.1 The System Matrix A and its POPs 15.3.2 Cross-Spectrum Matrix in POP-Basis: Its Matrix Formulation 15.3.3 Cross-Spectrum Matrix in POP-Basis: Its Diagonal Components
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  • 16
    Call number: AWI G3-23-95336
    In: Miscellaneous Report / Geological Survey of Canada, 64
    Type of Medium: Monograph available for loan
    Pages: 71 Seiten , Illustrationen, Karten
    ISBN: 0660174642 , 0-660-17464-2
    Series Statement: Miscellaneous Report / Geological Survey of Canada 64
    Language: English
    Note: Abstract Résumé Acknowledgments Welcome to Yellowknife Part I: The landscape and the people Geological evolution of the landscape Bedrock geology Surficial geology Climate and vegetation History of Yellowknife From gold to government Significant events Part II: Living with frozen ground Permafrost Regional distribution Permafrost occurrence in Yellowknife Significance of peat Significance of moisture Ice lenses Thaw stable and thaw unstable ground Thaw settlement Frost heave Development Buildings Roads Utilities Thermosyphons Climate change - an uncertain future for permafrost Climate and permafrost history Air temperature trends over the last century Response of air temperatures to doubling of greenhouse gases Effect of climate warming on permafrost in Yellowknife Impacts of climate warming Part III: Guide to field stops Introduction The Capital Tour - Capital Site to Bowling Green building Stop 1. The Capital Site - a profusion of peat Stop 2. Legislative Assembly - design with nature Stop 3. Legislative Assembly roadway - perils of paving peat Stop 4. Walking path - tipping trails Stop 5. Legislative Assembly parking lot - preserving permafrost Stop 6. Frame Lake - Yellowknife's aquatic centrepiece Stop 7. National Defence building - seeking solid ground Stop 8. Visitors Centre - rocking and rolling Stop 9. 49 Street thermosyphons - keeping it cool Stop 10. Bowling Green building - swallowing sidewalks The City Tour - 49 Avenue to Niven Lake Stop 11. 49 and 49 intersection - rolling roadways Stop 12. 49 Avenue - sagging sidewalks Stop 13. Downtown Yellowknife - safe on sand Stop 14. Gold Range Hotel - making things work Stop 15. Centre Square Mall - stemming shifting sands Stop 16. Boston Pizza - fast food on a slab Stop 17. Royal Oak Mines Inc. houses - half a century later Stop 18. 52 Avenue - up, up, and ... away Stop 19. 49 Street hill - leaving good ground Stop 20. 54 Avenue - frozen dangers underfoot Stop 21. Rockcliffe Apartments - creeping crawl space Stop 22. School Draw subdivision - houses on the move Stop 23. School Draw Park - from basements to basketballs Stop 24. Rock outcrop - on the shores of glacial Lake McConnell Stop 25. Detah ice road - crystal highway Stop 26. Old Town - doing things the old-fashioned way Stop 27. Franklin Avenue - whither frozen ground? Stop 28. Fritz Theil Park - from dump to diamond I Stop 29. Old sewage line - pipes and peat Stop 30. Niven Lake - a subarctic oasis I Part IV: The Niven Lake Trail Introduction Stop 1. A biological magnet for waterbirds Stop 2. The land of little sticks Stop 3. The wonder of wetlands Stop 4. Niven Lake -urban oasis for wildlife Stop 5. Peat, beautiful peat Stop 6. Honolulu north? Stop 7. Home sweet home -all year round Stop 8. Those mud-slinging, bug-poking shorebirds Glossary of terms Selected references List of field guides for Yellowknife
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  • 17
    Call number: AWI G4-23-95001
    Type of Medium: Monograph available for loan
    Pages: ii, 62 Seiten , Illustrationen
    Language: English
    Note: Contents Summary Introduction Material and Methods 2.1 Experimental Approach and Concept 2.2 Cold Chamber Experiments 2.2.1 Packed Sand Columns 2.2.2 Undisturbed Soil Monolith 2.3 Tracer Extraction and Determination of Tracer Concentrations 2.4 Digital Image Analysis 2.4.1 Photographic Recording 2.4.2 Image Analysis 2.4.3 Statistical Regression Analysis 2.5 Fluorescence Imaging 2.6 Low-Temperature SEM and X-Ray Analysis 2.7 Numerical Simulation 2.7.1 Model Description 2.7.2 Model Application 3 Results From Cold Chamber Experiments 3.1 Packed Sand Columns (Experiment I-III) 3.1.1 Infiltration Behaviour (Experiment I-III) 3.1.2 Dye Tracer Distribution (Experiment III) 3.1.3 Mass Recovery of Dye Tracers (Experiment III) 3.1.4 Vertical Distribution of Dye Tracers Determined From Large Sections (Experiment III) 3.2 Undisturbed Soil Monolith (Experiment IV) 3.2.1 Infiltration Behaviour 3.2.2 Dye Tracer Distributions 3.2.3 Mass Recovery of all Tracers Determined From Large Sections 3.2.4 Vertical Distribution of all Tracers Determined From Large Sections 4 Results From Low-Temperature SEM and X-Ray Analysis 4.1 Dry Sand and Loam 4.2 Wet Sand 4.3 Wet Loam 5 Modelling Results 5.1 Thermal Regime 5.2 Water Content Profile Before the Irrigation 5.3 Infiltration Behaviour 5.4 Water Content Profile After the Irrigation 5.5 Solute Transport 5.6 Energy Exchange at the Surface 6 Conclusions 6.1 Conclusions About the Methods 6.2 Conclusions About the Water Infiltration in Frozen Soil List of Figures List of Tables Bibliography
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  • 18
    Monograph available for loan
    Monograph available for loan
    Sankt.Peterburg : Izdatel'stvo "Mir i Sem'ja 95", Glavnoe Agentstvo Vozdušnych Soobščenij Rossijskoj Federacii
    Call number: AWI Bio-23-95317
    Type of Medium: Monograph available for loan
    Pages: 119 Seiten , Illustrationen , 1 Beilage
    ISBN: 5-90016-27-1
    Language: Russian , English , French
    Note: Zum Teil in kyrillischer Schrift. , Text in russischer, englischer und französischer Sprache
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  • 19
    Series available for loan
    Series available for loan
    Praha : Nakladatelství Československé Akademie věd
    Call number: O 3037
    Type of Medium: Series available for loan
    Pages: 304 Seiten , Illustrationen, Karten , 9 Karten
    Language: Czech , German , Russian , English
    Note: 1961 , In tschechischer Sprache mit russischen, deutschen und englischen Zusammenfassungen
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  • 20
    Call number: O 2075/1964 II
    Type of Medium: Journal available for loan
    ISSN: 0367-6684 , 0568-5249 , 0568-5249
    Former Title: Vorg. Akademija nauk SSSR Izvestija Akademii Nauk SSSR / Serija geografičeskaja i geofizičeskaja
    Subsequent Title: Forts. Akademija nauk SSSR Izvestija Akademii Nauk SSSR / Fizika zemli
    Subsequent Title: Forts. Akademija nauk SSSR Izvestija Akademii Nauk SSSR / Fizika atmosfery i okeana
    Language: Russian , English
    Note: Teils mit Jg.-Zählung , In kyrill. Schr
    Location: Magazine - must be ordered
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  • 21
    Monograph available for loan
    Monograph available for loan
    New York [u.a.] : Wiley & Sons
    Call number: M 10.0049 ; 10/M 98.0156
    Description / Table of Contents: Content: Partial table of contents: Hydrothermal Mineral Deposits: What We Do and Don Know (B. Skinner). Magmas and Hydrothermal Fluids (C. Burnham). Thermal Aspects of Ore Formation (L. Cathles). Oxygen and Hydrogen Isotope Relationships in Hydrothermal Mineral Deposits (H. Taylor). Hydrothermal Alteration and Its Relationship to Ore Fluid Composition (M. Reed). Sulfide Ore Mineral Stabilities, Morphologies, and Intergrowth Textures (D. Vaughan & J. Craig). Gangue Mineral Transport and Deposition (J. Rimstidt). Fluid Inclusion Studies of Hydrothermal Ore Deposits (E. Roedder & R. Bodnar). Geothermal Systems and Mercury Deposits (H. Barnes & T. Seward). Submarine Hydrothermal Systems and Deposits (S. Scott). Ore-Forming Brines in Active Continental Rifts (M. McKibben & L. Hardie). Appendix. Index.
    Type of Medium: Monograph available for loan
    Pages: xx, 972 S.
    Edition: 3rd ed.
    ISBN: 047157144X
    Classification:
    Geochemistry
    Language: English
    Location: Upper compact magazine
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  • 22
    Call number: AWI P5-23-95010
    Type of Medium: Monograph available for loan
    Pages: VI, 54 Seiten , Illustrationen , 28 cm
    Language: English
    Note: Table of Contents Foreword The Global Context The Arctic in a Global Context The ARCSS Program The Arctic System Science (ARCSS) Program The Scientific Goals of the ARCSS Program ARCSS Objectives Significant Research and Findings of the ARCSS Program ARCSS Program Research Implementation of ARCSS Program Research ARCSS Program Components Paleoenvironmental Studies Greenland Ice Sheet Project Two (GISP2) Paleoclimates of Arctic Lakes and Estuaries (PALE) Ocean-Atmosphere-Ice Interactions (OAII) Land-Atmosphere-Ice Interactions (LAII) Integrative Studies Synthesis, Integration, and Modeling Studies (SIMS) New Initiatives Human Dimensions of the Arctic System (HARC) Russian-American Initiative on Shelf-Land Environments in the Arctic (RAISE) International Collaboration The Future of the ARCSS Program Priorities for the Future Research Questions Integrative Strategies Community Coordination and Integration Coordination and Integration Logistics Support Working with Arctic Residents Community Planning and Science Management ARCSS Committee Science Steering Committees Periodic Meetings of ARCSS Principal Investigators Appendices ARCSS Program Contact Information A History of ARCSS Program Development ARCSS Data Protocol References and Relevant Reports Contributors and Reviewers
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  • 23
    Series available for loan
    Series available for loan
    Ås : Agricultural University of Norway, Department of Soil and Water Sciences
    Call number: AWI G3-23-95008
    Type of Medium: Series available for loan
    Pages: viii, 136 Seiten , Illustrationen , 24 cm
    ISBN: 82-575-0394-0 , 8257503940
    ISSN: 0802-3220
    Series Statement: Doctor scientiarum theses / Norges Landbruskhøgskole 1999:19
    Language: English
    Note: Zugleich: Dissertation, Norges landbrukshøgskole, 1999 , Englisch
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  • 24
    Monograph available for loan
    Monograph available for loan
    Boca Raton, Fla. : CRC Press
    Call number: AWI S1-23-95157
    Type of Medium: Monograph available for loan
    Pages: IX, 812 Seiten , Illustrationen
    Edition: 30th edition
    ISBN: 0849324793 , 0-8493-2479-3
    Language: English
    Note: Table of Contents Chapter 1 Analysis / John S. Robertson, Karen Bolinger, Lawrence M. Glasser, Neil J.A. Sloane, and Rob Gross Chapter 2 Algebra / Brad Wilson, John Michaels, Patrick J. Driscoll, and Rob Gross Chapter 3 Discrete Mathematics / George K. Tzanetopoulos, Jeff Goldberg, Joseph J. Rushanan, and Mel Hausner Chapter 4 Geometry / Ray McLenaghan and Silvio Levy Chapter 5 Continuous Mathematics / Catherine Roberts and Ray McLenaghan Chapter 6 Special Functions / Ahmed I. Zayed, Nicco M. Temme, and Paul Jameson Chapter 7 Probability and Statistics / William C. Rinaman, Christopher Heil, Michael T. Strauss, Michael Mascagni, and Mike Sousa Chapter 8 Scientific Computing / Gary Stanek Chapter 9 Financial Analysis / Daniel Zwillinger Chapter 10 Miscellaneous / Michael T. Strauss, Rob Gross, and Victor J. Katz List of Notations Index
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  • 25
    Series available for loan
    Series available for loan
    Uppsala : Swedish University of Agricultural Sciences
    Call number: AWI G3-23-95006
    Description / Table of Contents: Water flow in frozen soils is closely linked to the heat dynamics in the soil-snowatmosphere system. Therefore, a detailed understanding of both thermal and hydraulic processes, as well as the way they are linked is required to quantify and predict the fluxes during freezing and snowmelt. This thesis focuses on different key processes with regard to water dynamics in frozen soils: (a) the heat exchange at the snow surface, (b) the snowmelt infiltration, (c) the freezing characteristic curve, and (d) the frost-induced solute redistribution. Experimental studies were conducted both in the laboratory, using small soil columns and in the field, on soil plots of 4 m2 Oysimeters) and on an arable field of 6 ha. A one-dimensional numerical SV AT-model (SOIL) with a new two-domain concept for water flow in partly frozen soils was applied to these experiments. Measurements of soil water content (total and liquid), soil temperature, groundwater level and solute concentration as continuous time-series provided valuable information about the physical dynamics in the soil during cycles of freezing and thawing. For a shallow or patchy snowcover the simulation of soil frost was very sensitive to the surface energy balance and the snow depth and required accurate precipitation and radiation measurements. The two-domain infiltration model reproduced the field observations better than a single-domain model and gave more flexibility when simulating different field conditions. However, it also increased the model sensitivity. Major sources of uncertainty were the frost-induced water redistribution, the hydraulic conductivity of the initially air-filled pores and the freezing rate of the infiltrating water in the frozen soil. Accurate measurements of soil hydraulic properties were essential for calibrating the model for new soils. Further development of the model will have to include a more sophisticated description of the snow processes and the solute transport in order to be able to address key environmental problems.
    Type of Medium: Series available for loan
    Pages: Getrennte Zählung , Illustrationen
    ISBN: 9157655049 , 91-576-5504-9
    ISSN: 1401-6249
    Series Statement: Acta Universitatis Agriculturae Sueciae. Agraria 72
    Language: English
    Note: Zugleich: Dissertation, Sveriges Lantbruksuniversitet, Uppsala, 1997 , Contents Frozen soil hydrology Review and practical relevance The complex frozen soil environment Objectives Heat exchange above and within frozen soils Heat exchange at the snow surface Heat transfer through the snow pack Soil freezing characteristic curve Frost-induced solute redistribution Water infiltration and redistribution in frozen soil Experimental work Modelling Model versus measurements Conclusions Ongoing and future work Improved description of the processes at the pore scale Improved description of the snow pack Link to larger-scale models References Acknowledgments , Englisch
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  • 26
    Monograph available for loan
    Monograph available for loan
    Waterloo, Ont. : University of Waterloo
    Call number: AWI G3-23-95003
    Type of Medium: Monograph available for loan
    Pages: xviii, 181 Seiten , Illustrationen , 28 cm
    Language: English
    Note: Masterarbeit, University of Waterloo, 1995 , TABLE OF CONTENTS TITLE PAGE AUTHOR'S DECLARATION BORROWER'S PAGE ABSTRACT ACKNOWLEDGEMENTS DEDICATION LIST OF TABLES LIST OF FIGURES LIST OF PLATES CHAPTER 1 INTRODUCTION 1.1 INTRODUCTION 1.2 PURPOSE 1.3 OBJECTIVES CHAPTER 2 LITERATURE REVIEW 2.1 INTRODUCTION 2.2 THERMAL REGIME 2.3 INHERENT PHYSICAL CHARACTERISTICS 2.4 HYDROLOGICAL REGIME 2.5 INTEGRATED STUDIES 2.6 SUMMARY CHAPTER 3 STUDY SITE LOCATION 3.1 INTRODUCTION 3.2 REGIONAL CLIMATE 3.3 GEOLOGY 3.4 VEGETATION 3.5 COLOUR LAKE BASIN CHAPTER4 INHERENT PHYSICAL CHARACTERISTICS OF THE ACTIVE LAYER 4.1 INTRODUCTION 4.2 METHODS 4.3 RESULTS 4.4 DISCUSSION 4.4.1 SS, EIF and GC Transects 4.4.2 Permafrost Transects 4.5 SUMMARY CHAPTER 5 THERMAL CHARACTERISTICS OF THE ACTIVE LAYER 5.1 lNTRODUCTION 5.2 THEORY 5.2.1 Energy Balance 5.2.2 Active Layer Development 5.3 METHODS 5.3.1 Energy Balance 5.3.2 Ground Thermal Regime 5.3.3 Predicting of Active Layer Depths 5.4 RESULTS 5.4.1 Energy Balance 5.4.2 Ground Thermal Regime 5.4.3 Predicting Active Layer Depths 5.5 DISCUSSION 5.S.1 Energy Balance 5.5.2 Ground Temperatures and Ground Heat Flux 5.5.3 Predicting Active Layer Depths 5.6 SUMMARY CHAPTER 6 HYDROLOGICAL CHARACTERISTICS OF THE ACTIVE LAYER 6.1 INTRODUCTION 6.2 THEORY 6.2.1 Moisture Distribution 6.2.2 Maximum Storage within the Active Layer 6.3 METHODS 6.3.1 Moisture Profiles Using TDR 6.3.2 Precipitation and Evaporation 6.3.3 Changes in Water Storage in the Active Layer 6.3.4 Maximum Water Storage in the Active Layer 6.4 RESULTS 6.4.1 Moisture Distribution 6.4.1.1 Water Content Peaks 6.4.1.2 Apparent Unfrozen Water Content 6.4.1.3 Temporal Trends of a Typical Moisture Profile 6.4.1.4 Deviations from a Typical Site 6.4.1.5 Moisture Distribution Along a Hillslope 6.4.2 Precipitation Infiltration 6.4.3. Water Storage 6.5 DISCUSSION 6.5.1 Effect of Hydrology on Active Layer Development 6.5.1.1 Precipitation 6.5.1.2 Ice and Water Content 6.5.1.3 Seasonal Changes in Soil Moisture Distribution 6.5.2 Effect of Active Layer on Hydrology 6.5.2. 1 Impermeable Boundary 6.5.2.2 Subsurface Ponding 6.5.2.3 Permafrost/Active Layer Boundary Topography 6.5.2.4 Effect of Active Layer Hydrology on Surface Water 6.6 SUMMARY CHAPTER 7 CLIMATE CHANGE AND ACTIVE LAYER DEVELOPMENT 7.1 INTRODUCTION 7.2 SUMMARY 7.3 CLIMATE CHANGE 7.3.1 Introduction 7.3.2 Increase of Temperature 7.3.3 Changing Precipitation 7.4 REMOTE SENSING 7.5 RECOMMENDATION FOR FuRTHER RESEARCH APPENDIX A PHYSICAL CHARACTERISTICS APPENDIX A.1: ACTIVE LAYER DEPTHS APPENDIX B THERMAL CHARACTERISTICS APPENDIX B.1: BASE CAMP METEOROLOGICAL STATION OBSERVATIONS APPENDIX B.2: DAILY ENERGY-BALANCE SUMMARY APPENDIX B.3: MONTHLY AVERAGES FROM THE DESERT RESEARCH INSTITUTE METEOROLOGICAL STATION APPENDIX B.4: EXAMPLE OF DIURNAL FLUCTUATIONS IN TEMPERATURE AND ENERGY BALANCE COMPONENTS APPENDIX B.5: SOIL TEMPERATURES AT THE INTENSIVE STUDY SITES APPENDIX B.6: ACCUMULATED THAWING DEGREE DAYS APPENDIX B.7: CURVE FOR FENWALL THERMISTORS APPENDIX B.8: RELATIONSHIP BETWEEN √ADDT AND √TT APPENDIX C HYDROLOGICAL CHARACTERISTICS APPENDIX C.1: VOLUMETRIC WATER CONTENT VALUES APPENDIX C.2: POTENTIAL INFILTRATION REFERENCES , Englisch
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  • 27
    Call number: AWI G3-23-94987
    In: Dissertation / Eidgenössische Technische Hochschule Zürich, Nr. 11574
    Type of Medium: Series available for loan
    Pages: XIII, 137 Seiten , Illustrationen
    Series Statement: Dissertation / Eidgenössische Technische Hochschule Zürich No. 11574
    Language: English
    Note: Contents Kurzfassung Summary 1 Introduction 1.1 Water Regime of Mountain Forests in Winter 1.2 Thermodynamics of Frozen Soils 1.3 Water Flow Pathways in Frozen Soils 1.4 Water Infiltration into and Runoff from Frozen Soils 1.5 Objectives and Outline of this Study 2 Field Measurements of Water Transport in Frozen Soils 2.1 Abstract 2.2 Introduction 2.3 Materials and Methods 2.3.1 Test Site 2.3.2 Instrumentation 2.3.3 Soil Physical Properties 2.4 Results and Discussion 2.4.1 Entire Observation Period 2.4.2 Particular Snowmelt Events 2.4.3 Water Balance of Particular Snowmelt Events 2.5 Summary and Conclusions 3 Water and Solute Dynamics in Freezing Soil Columns 3.1 Abstract 3.2 Introduction 3.3 Materials and Methods 3.3.1 Experimental Setup 3.3.2 Determination of the Liquid Water Content 3.3.3 Determination of the Solute Concentration 3.3.4 Model Approach for the Freezing Characteristic Curve 3.4 Results and Discussion 3.4.l Calibration Results 3.4.2 The Freezing and Thawing Cycle 3.4.3 Freezing Characteristic Curves 3.5 Conclusions 4 Modelling Runoff Dynamics in Sloped Frozen Soils 4.1 Abstract 4.2 Introduction 4.3 Model Description 4.4 Model Application 4.5 Results and Discussion 4.5.1 Sensitivity Analysis 4.5.2 Model Calibration 4.5.3 Model Validation 4.5.4 Influence of Temporal Resolution on Model Output 4.5.5 Climate Change Scenarios 4.6 Summary and Conclusions 5 Concluding Remarks Appendices A Additional Field Measurements B Additional Cold-laboratory Measurements C Model Parameter File List of Symbols List of Figures List of Tables Bibliography Curriculum Vitae
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  • 28
    Publication Date: 2023-01-19
    Description: The goal of the BEECD project is to prepare a basic parametric earthquake catalogue of Europe and a database of primary data, with special reference to long-term seismicity. This paper discusses the background of the project, with special reference to the reasons and the procedures according to which the catalogue and the database will be compiled. In the following the first results of the project are presented: first, procedures and problems in the compilation of the working file, including the analysis of the input catalogues; next, the definition of a tool for classifying the supporting data sets and its application to the entries of the input catalogue for the time-window before 1990, which shows that the average quality of the supporting data is rather poor; finally, some results of earthquake investigation, some potential use and the expected results.
    Language: English
    Type: info:eu-repo/semantics/bookPart
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    Journal available for loan
    Journal available for loan
    Tübingen : Mohr Siebeck ; 1.1884 - 48.1931; N.F. 1.1932/33 - 10.1943/44(1945),3; 11.1948/49(1949) -
    Call number: ZS 22.95039
    Type of Medium: Journal available for loan
    Pages: Online-Ressource
    ISSN: 1614-0974 , 0015-2218 , 0015-2218
    Language: German , English
    Note: N.F. entfällt ab 57.2000. - Volltext auch als Teil einer Datenbank verfügbar , Ersch. ab 2000 in engl. Sprache mit dt. Hauptsacht.
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    Publication Date: 2022-11-14
    Keywords: 550 - Earth sciences
    Language: German , English
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    Deutsches GeoForschungsZentrum GFZ
    In:  Scientific Technical Report STR
    Publication Date: 2022-11-14
    Language: English
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    Deutsches GeoForschungsZentrum GFZ
    In:  Scientific Technical Report STR
    Publication Date: 2022-11-10
    Keywords: 550 - Earth sciences
    Language: English
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  • 33
    Publication Date: 2022-10-17
    Description: Abstract: A provisional palynological organic matter classification is applied for the palynofacies from lacustrine sediments of the uppermost Carboniferous and lowermost Permian of Southwest-Germany (Rotliegend). Sedimentary organic matter of mainly higher biological origin is determined microscopically. The definition of three fixed major- and variable subdivisions led to the creation of seven palynofacies types. These PF-Types are in addition graphically defined by a ternary diagram, a palynofacies-triangle. 30 lake horizons of different stratigraphic positions and their surrounding environments were studied and the results compared to each other. A preliminary model provides an overview on relations between PF-Types and corresponding environments. Differences in the palynofacies composition of the pelagial facies help to characterise the relative size of fossil lakes. The results from the sedimentary sequences of whole lake successions in comparison are partially blurred and have to be analysed separately. In these successions the complete development of one lake is documented by the palynofacies. The PF-analyses provide valuable data and lead to more accurate reconstructions of fossil lake environments, especially its inhabitants.
    Description: Kurzfassung: Eine vorläufige Klassifikation für palynologische organische Materie wird auf die Palynofazies lakustriner Sedimente des obersten Karbon und unteren Perm (Rotliegend) Südwestdeutschlands angewandt. Das sedimentäre organische Material mit weitgehend höherer biologischer Herkunft wurde mikroskopisch bestimmt. Die Definition dreier festgelegter Haupt- und variabler Unterabteilungen führte zur Bildung von sieben Palynofazies-Iypen. Diese PF-Typen werden zusätzlich graphisch durch ein ternäres Diagramm, ein „Palynofazies-Dreieck”, definiert. Dreißig Seehorizonte unterschiedlicher stratigraphischer Position und ihre umgebende Umwelt wurden untersucht und die Ergebnisse miteinander verglichen. Ein vorläufiges Modell bietet einen UÜberblick über Beziehungen zwischen PF-Typen und korrespondierendem Environment. Unterschiede in der Zusammensetzung der Palynofazies helfen die relative Seegröße zu bestimmen. Ergebnisse von den vollständigen sedimentären Abfolgen sind vergleichsweise partiell undeutlich und müssen getrennt analysiert werden. In diesen Abfolgen wird die komplette Entwicklung eines Sees durch seine Palynofazies dokumentiert. Die PF-Analyse liefert somit wertvolle Daten und führt zu genaueren Rekonstruktionen fossiler Lebensräume im See, speziell seiner Bewohner.
    Description: research
    Keywords: ddc:551.304
    Language: English
    Type: doc-type:article , publishedVersion
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  • 34
    Monograph available for loan
    Monograph available for loan
    Windhoek : Geological Survey
    Call number: MR 22.94953
    Type of Medium: Monograph available for loan
    Pages: 58 Seiten , zahlreiche Illustrationen, graphische Darstellungen, Karten
    Language: English
    Location: Upper compact magazine
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    Monograph available for loan
    Monograph available for loan
    Windhoek, Namibia : Ministry of Mines and Energy, Geological Survey of Namibia | [Hannover] : German Federal Institute for Geosciences and Natural Resources
    Call number: MR 22.94945
    Type of Medium: Monograph available for loan
    Pages: 50 Seiten , Illustrationen, Karten , 22 cm
    ISBN: 0-86976-402-0
    Series Statement: Bulletin / Ministry of Mines and Energy, Geological Survey of Namibia 3
    Language: English
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    Monograph available for loan
    Monograph available for loan
    New York, NY [u.a.] : Wiley
    Call number: MR 22.94938
    Type of Medium: Monograph available for loan
    Pages: X, 378 Seiten , Illustrationen, graphische Darstellungen, Karten
    ISBN: 0-471-16698-7
    Language: English
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    Monograph available for loan
    Monograph available for loan
    Toronto, ON : The Northern Miner
    Call number: MR 22.94924
    Type of Medium: Monograph available for loan
    Pages: 304 Seiten , Illustrationen, Karten, graphische Darstellungen
    ISBN: 1-55257-003-7
    Language: English
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    Call number: 5537
    Type of Medium: Monograph available for loan
    Pages: XIV, 497 Seiten , Illustrationen
    Series Statement: The SIAM series in applied mathematics
    Language: English
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  • 39
    Call number: MR 22.94902
    In: Special publication / The Geochemical Society, 6
    Type of Medium: Monograph available for loan
    Pages: XII, 322 Seiten , Illustrationen, graphische Darstellungen
    ISBN: 0-941809-05-6
    Series Statement: Special publication / The Geochemical Society No. 6
    Language: English
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  • 40
    Monograph available for loan
    Monograph available for loan
    Stanford, Calif. : Stanford Univ. Press
    Call number: IASS 22.94829
    Type of Medium: Monograph available for loan
    Pages: X, 325 S. , Ill.
    ISBN: 0804727864 , 0804727856 , 9780804727860
    Series Statement: Writing science
    Language: English
    Branch Library: RIFS Library
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  • 41
    Call number: AWI G3-22-94842-2
    In: Advances in hillslope processes, Volume 2
    In: British Geomorphological Research Group symposia series
    Type of Medium: Monograph available for loan
    Pages: XVI, Seite 688 - 1306 , Illustrationen
    ISBN: 0-471-96774-2
    Series Statement: Advances in hillslope processes 2
    Language: English
    Note: CONTENTS VOLUME 2 Section 6 GULLY DEVELOPMENT PROCESSES Chapter 31 Thresholds of Channel Initiation in Historical and Holocene Times, Southeastern Australia / I. P. Prosser Chapter 32 The Role of Sideslope Gullies in the Production andDelivery of Sediment to Contemporary Terraces, Rambla del Hornillo, Southern Spain / H. Faulkner Chapter 33 Holocene Hillslope Gully Systems in the Howgill Fells, Cumbria / A. M. Harvey Chapter 34 Unsaturated Strength and Preferential Flow as Controls on Gully Head Development / A. J. C. Collison Section 7 SLOPE STABILITY Chapter 35 Landslides and Stability in the Nepalese Middle Hills under Seasonal and Agricultural Land-Use Change Scenarios / K. Wu and J. B. Thornes Chapter 36 Developments in Slope Hydrology-Stability Modelling for Tropical Slopes / M. G. Anderson, A. J. C. Collison, J. Hartshorne, D. M. Lloyd and A. Park Chapter 37 The Mechanics and Landforms of Deep-Seated Landslides / D. Petley Chapter 38 The Assessment and Modelling of Hydrological Failure Conditions of Landslides in the Puriscal Region (Costa Rica) and the Manizales Region (Colombia) / M. T. J. Terlien, P. G. B. De Louw, Th. W. J. Van Asch and R. A. A. Hetterschijt Chapter 39 The Effects of Grass Roots on the Shear Strength of Colluvial Soils in Nepal / C. J. Lawrance, R. J. Rickson and J. E. Clark Chapter 40 Development of an Episodic Landform Change Model based upon the Black Ven Mudslide, 1946-1995 / D. Brunsden and J. H. Chandler Chapter 41 Coastal Slope Development: Temporal and Spatial Periodicity in the Holderness Cliff Recession / J. Pethick Section 8 TROPICAL HILLSLOPE PROCESSES Chapter 42 A New Approach towards the Quantification of Runoff and Eroded Sediment from Bench Terraces in Humid Tropical Steeplands and its Application in South-Central Java, Indonesia / L. A. Bruijnzee/ and W. R. S. Critchley Chapter 43 Hydrological Pathways and Water Chemistry in Amazonian Rain Forests / H. Elsenbeer and A. Lack Chapter 44 Observations on Slope Processes in a Tropical Rain Forest Environment Before and After Forest Plantation Establishment / A. Maimer Chapter 45 Tectonics and Relief in Tropical Forested Mountains: The Gipfelflur Hypothesis Revisited / A. P. Dykes and J. B. Thornes Section 9 SEMI-ARID HILLSLOPE PROCESSES Chapter 46 Hillslope Response to Extreme Storm Events: The Example of the Vaison-La-Romaine Event / J. Wainwright Chapter 47 Geomorphological Implications of Vegetation Patchiness on Semi-arid Slopes / J. Puigdefabregas and G. Sanchez Chapter 48 Runoff and Erosion on Semi-arid Hillslopes / A. J. Parsons, J. Wainwright and A. D. Abrahams Chapter 49 Cuesta Scarp Forms and Processes in Different Attitudinal Belts of the Colorado Plateau as Indicators of Climatic Change / K.-H. Schmidt and P. Meitz Chapter 50 Modelling the Complexity of Land Surface Response to Climatic Variability in Mediterranean Environments / M. Mulligan Section 10 PERIGLACIAL HILLSLOPE PROCESSES Chapter 51 Processes of Thaw-Induced Mass Movement in Non-cohesive Soils: Results of an Instrumented Slope Simulation Experiment / C. Harris and M. C. R. Davies Chapter 52 Paraglacial Slope Adjustment during Recent Deglaciation and Its Implication for Slope Evolution in Formerly Glaciated Environments / C. K. Ballantyne and D. I. Benn Chapter 53 Paraglacial or Periglacial? The Sedimentology of Slope Deposits in Upland Northumberland / S. Harrison Chapter 54 Slow Mass Movements and Climatic Relationships, 1972-1994, Kapp Linné, West Spitzbergen / H. J. Akerman Chapter 55 Rock Weathering and the Formation of Summit Blockfield Slopes in Norway: Examples and Implications / B. R. Rea, W. B. Whalley and E. M. Porter Author Index Subject Index
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    Publication Date: 2022-07-13
    Language: German , English
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  • 43
    Monograph available for loan
    Monograph available for loan
    Cheltenham, UK [u.a.] : Elgar
    Call number: IASS 20.94406
    Description / Table of Contents: enth.
    Type of Medium: Monograph available for loan
    Pages: XVIII, 521 S. : graph. Darst , Tab., graph. Darst.
    ISBN: 1858987164
    Series Statement: New horizons in the economics of innovation
    Language: English
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  • 44
    Call number: 10.1144/GSL.SP.1964.001.01.31 (e-book)
    In: Special publications / the Geological Society, London, Volume [1]
    Type of Medium: 12
    Pages: 1 Online-Ressource (VIII, 458 Seiten) , Illustrationen , 1 Corrigenda
    Series Statement: The quarterly journal of the Geological Society of London : Supplement 120
    Language: English
    Note: Table of Contents Part 1: Introduction Arthur Holmes Frederick Henry Stewart Geological Society, London, Special Publications, 1, 1-11, 1 January 1964, https://doi.org/10.1144/GSL.SP.1964.001.01.03 The history of attempts to establish a quantitative time-scale L. R. Wager Geological Society, London, Special Publications, 1, 13-28, 1 January 1964, https://doi.org/10.1144/GSL.SP.1964.001.01.04 A review of recent Phanerozoic time-scales N. J. Snelling Geological Society, London, Special Publications, 1, 29-36, 1 January 1964, https://doi.org/10.1144/GSL.SP.1964.001.01.05 Sedimentation rates in relation to the Phanerozoic time-scale J. D. Hudson Geological Society, London, Special Publications, 1, 37-42, 1 January 1964, https://doi.org/10.1144/GSL.SP.1964.001.01.06 The relationship between radiometric ages obtained from plutonic complexes and stratigraphical time R. St J. Lambert Geological Society, London, Special Publications, 1, 43-54, 1 January 1964, https://doi.org/10.1144/GSL.SP.1964.001.01.07 The geological significance of radiometric age studies on volcanic and hypabyssal rocks F. J. Fitch and J. A. Miller Geological Society, London, Special Publications, 1, 55-69, 1 January 1964, https://doi.org/10.1144/GSL.SP.1964.001.01.08 Part 2: Radiometric Methods with Respect to the Time-Scale Uranium–thorium–lead age-determinations with respect to the phanerozoic time-scale A. G. Darnley Geological Society, London, Special Publications, 1, 73-86, 1 January 1964, https://doi.org/10.1144/GSL.SP.1964.001.01.09 The rubidium–strontium method Stephen Moorbath Geological Society, London, Special Publications, 1, 87-99, 1 January 1964, https://doi.org/10.1144/GSL.SP.1964.001.01.10 Potassium—argon methods with special reference to basic igneous rocks John Alfred Miller and Frank John Fitch Geological Society, London, Special Publications, 1, 101-117, 1 January 1964, https://doi.org/10.1144/GSL.SP.1964.001.01.11 Potassium—argon ages of sedimentary and pyroclastic rocks Halfdan Baadsgaard and Martin Henry Dodson Geological Society, London, Special Publications, 1, 119-127, 1 January 1964, https://doi.org/10.1144/GSL.SP.1964.001.01.12 Potassium—argon decay constants and age tables Alan Gilbert Smith Geological Society, London, Special Publications, 1, 129-141, 1 January 1964, https://doi.org/10.1144/GSL.SP.1964.001.01.13 Part 3: Original Data Glauconite dates from the Upper Jurassic and Lower Cretaceous Martin Henry Dodson, David Charles Rex, Raymond Casey and Percival Allen Geological Society, London, Special Publications, 1, 145-158, 1 January 1964, https://doi.org/10.1144/GSL.SP.1964.001.01.14 The age of the paroxysmal Variscan orogeny in England Frank Joseph Fitch and John Alfred Miller Geological Society, London, Special Publications, 1, 159-175, 1 January 1964, https://doi.org/10.1144/GSL.SP.1964.001.01.15 Part 4: Stratigraphical Review The Tertiary period Brian Michael Funnell Geological Society, London, Special Publications, 1, 179-191, 1 January 1964, https://doi.org/10.1144/GSL.SP.1964.001.01.16 The Cretaceous period Raymond Casey Geological Society, London, Special Publications, 1, 193-202, 1 January 1964, https://doi.org/10.1144/GSL.SP.1964.001.01.17 The Jurassic period Michael Kingsley Howarth Geological Society, London, Special Publications, 1, 203-205, 1 January 1964, https://doi.org/10.1144/GSL.SP.1964.001.01.18 The Triassic period Edward Timothy Tozer Geological Society, London, Special Publications, 1, 207-209, 1 January 1964, https://doi.org/10.1144/GSL.SP.1964.001.01.19 The Permian period Denys Barker Smith Geological Society, London, Special Publications, 1, 211-220, 1 January 1964, https://doi.org/10.1144/GSL.SP.1964.001.01.20 The Carboniferous period Edward Howel Francis and Austin William Woodland Geological Society, London, Special Publications, 1, 221-232, 1 January 1964, https://doi.org/10.1144/GSL.SP.1964.001.01.21 The Devonian period Peter Furneaux Friend and Michael Robert House Geological Society, London, Special Publications, 1, 233-236, 1 January 1964, https://doi.org/10.1144/GSL.SP.1964.001.01.22 The Silurian period I. Strachan Geological Society, London, Special Publications, 1, 237-240, 1 January 1964, https://doi.org/10.1144/GSL.SP.1964.001.01.23 The Ordovician period H. B. Whittington and A. Williams Geological Society, London, Special Publications, 1, 241-254, 1 January 1964, https://doi.org/10.1144/GSL.SP.1964.001.01.24 The Cambrian period J. W. Cowie Geological Society, London, Special Publications, 1, 255-258, 1 January 1964, https://doi.org/10.1144/GSL.SP.1964.001.01.25 GENERAL DISCUSSION OF PAPAERS IN PART 4S Geological Society, London, Special Publications, 1, 259, 1 January 1964, https://doi.org/10.1144/GSL.SP.1964.001.01.26 Summary of the Phanerozoic time-scale: the Geological Society Phanerozoic time-scale 1964 Geological Society, London, Special Publications, 1, 260-262, 1 January 1964, https://doi.org/10.1144/GSL.SP.1964.001.01.27 Part 5: Abstracts of Published Radiometric and Stratigraphical Data with Comments Introduction Geological Society, London, Special Publications, 1, 265-268, 1 January 1964, https://doi.org/10.1144/GSL.SP.1964.001.01.28 Items Geological Society, London, Special Publications, 1, 269-442, 1 January 1964, https://doi.org/10.1144/GSL.SP.1964.001.01.29 Erratum Errata Geological Society, London, Special Publications, 1, 443, 1 January 1964, https://doi.org/10.1144/GSL.SP.1964.001.01.01 Corrigenda Geological Society, London, Special Publications, 1, 444, 1 January 1964, https://doi.org/10.1144/GSL.SP.1964.001.01.30
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    Publication Date: 2022-06-17
    Language: English
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  • 46
    Monograph available for loan
    Monograph available for loan
    Harlow : Longman
    Call number: AWI G3-97-0315 ; AWI G3-99-0050 ; AWI G3-00-0274 ; AWI G3-00-0275 ; AWI G3-22-74104
    Description / Table of Contents: The Periglacial Environment second edition, provides a fascinating and authoritative overview of some of the world's cold non-glacial environments, with an emphasis on North American and Eurasian polar lowlands. It describes the landforms and geomorphic processes which typify these environments. Divided into four parts, the book summarizes the range and variability of periglacial climates, the main elements of periglacial landscape evolution, evidence for the existence of Pleistocene periglacial conditions in mid-latitudes and the current impact of human activity, including global warming.
    Type of Medium: Monograph available for loan
    Pages: 341 Seiten , Illustrationen
    Edition: Second edition
    ISBN: 0582305365
    Language: English
    Note: Contents: List of figures. - List of tables. - Preface to first edition. - Preface to second edition. - Acknowledgements. - PART 1 THE PERIGLACIAL DOMAIN. - 1 Introduction. - 1.1 The periglacial concept. - 1.2 Periglacial processes. - 1.3 The growth of periglacial geomorphology. - Further reading. - Discussion topics. - 2 Periglacial landscapes. - 2.1 Introduction. - 2.2 Proglacial, paraglacial or periglacial?. - 2.3 Never-glaciated periglacial terrain. - 2.4 Implications. - Further reading. - Discussion topics. - 3 Periglacial climates. - 3.1 Boundary conditions. - 3.2 Periglacial climates. - 3.3. Periglacial climates and the cryosphere. - Further reading. - Discussion topics. - PART 2 PRESENT-DAY PERIGLACIAL ENVIRONMENTS. - 4 Frost action and cryogenic weathering. - 4.1 Introduction. - 4.2 The freezing process. - 4.3 Ice segregation and frost heave. - 4.4 Freezing and thawing indices. - 4.5 The ground temperature regime. - 4.6 Frost cracking. - 4.7 Cryogenic weathering. - 4.8 Salt weathering. - 4.9 Solution and karstification. - Further reading. - Discussion topics. - 5 Permafrost. - 5.1 Historical perspective. - 5.2 Moisture in permafrost. - 5.3 Geothermal regimes of permafrost. - 5.4 Distribution of permafrost. - 5.5 Permafrost and terrain conditions. - 5.6 Surface features of permafrost. - 5.7 Permafrost hydrology. - Further reading. - Discussion topics. - 6 Ground ice. - 6.1 Ground ice description. - 6.2 Types and amounts of ground ice. - 6.3 Ice wedges. - 6.4 Massive ice and massive icy bodies. - 6.5 Ice-cored mounds and pingos. - Further reading. - Discussion topics. - 7 Thermokarst. - 7.1 Causes of thermokarst. - 7.2 Thermokarst subsidence and thermal erosion. - 7.3 Alas thermokarst relief. - 7.4 Ice-wedge thermokarst terrain. - 7.5 Retrogressive thaw slumps. - 7.6 Thaw lakes and depressions. - 7.7 Fluvio-thermal erosion. - 7.8 Thermokarst involutions. - Further reading. - Discussion topics. - 8 The active layer. - 8.1 Definition. - 8.2 Thermal regime of the active layer. - 8.3 Unfrozen water in freezing and frozen soils. - 8.4 Frost heave. - 8.5 Thaw consolidation. - 8.6 Thermally induced mass displacement. - 8.7 Cryoturbation and patterned ground. - 8.8 Active layer hydraulics and mud boils. - 8.9 Conclusions. - Further reading. - Discussion topics. - 9 Hillslope processes. - 9.1 Mass wasting. - 9.2 Solifluction. - 9.3 Slopewash. - 9.4 Rapid mass movement. - 9.5 Frozen slopes. - Further reading. - Discussion topics. - 10 Slope morphology. - 10.1 The free-face model. - 10.2 Rectilinear debris-mantled slopes. - 10.3 Convexo-concavo debris-mantled slopes. - 10.4 Pediment-like forms. - 10.5 Stepped profiles. - 10.6 Slope evolution. - 10.7 General reflections. - Further reading. - Discussion topics. - 11 Fluvial processes and landforms. - 11.1 Introduction. - 11.2 Major rivers. - 11.3 Channel hydrology. - 11.4 Basin hydrology. - 11.5 Sediment flow, surface transport and denudation. - 11.6 Fluvio-thermal erosion. - 11.7 Channel morphology. - 11.8 Valley asymmetry. - Further reading. - Discussion topics. - 12 Wind action and coastal processes. - 12.1 The role of the wind. - 12.2 Loess-like silt. - 12.3 Sand dunes and sand sheets. - 12.4 Coastal processes. - 12.5 Cold-climate deltas. - Further reading. - Discussion topics. - PART 3 PLEISTOCENE PERIGLACIAL ENVIRONMENTS. - 13 Pleistocene periglacial conditions. - 13.1 Introduction. - 13.2 The time scale and climatic fluctuations. - 13.3 Geomorphic considerations. - 13.4 Problems of reconstruction. - 13.5 Extent of late Pleistocene periglacial conditions. - Further reading. - Discussion topics. - 14 Relict periglacial phenomena. - 14.1 Introduction. - 14.2 Perennial or seasonal frost?. - 14.3 Evidence for frost action. - 14.4 Evidence for frozen ground. - 14.5 Pleistocene frost fissures. - 14.6 Frost mounds. - 14.7 Thermokarst forms and structures. - Further reading. - Discussion topics. - 15 Pleistocene wind action, tundra rivers and periglacial landscape modification. - 15.1 Wind action. - 15.2 Tundra rivers. - 15.3 Asymmetrical valleys. - 15.4 Periglacial landscape modification. - 15.5 Summary. - Further reading. - Discussion topics. - PART 4 APPLIED PERIGLACIAL GEOMORPHOLOGY. - 16 Geotechnical and engineering aspects. - 16.1 Introduction. - 16.2 Human-induced thermokarst and terrain disturbance. - 16.3 Engineering and construction problems. - 16.4 Hydrological problems. - Further reading. - Discussion topics. - 17 Global change and periglacial environments. - 17.1 Global change and cold regions. - 17.2 Evidence from the present day. - 17.3 Future responses. - Further reading. - Discussion topics. - References. - Index.
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    Publication Date: 2022-02-26
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    facet.materialart.
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    Wuppertal : Wuppertal Institut für Klima, Umwelt, Energie
    Publication Date: 2022-02-18
    Description: International and national climate change policies may either mutually support or block each other. The international political debate can on the one hand be a driving force, mainly because of its "agenda-setting" power for the national political debate, but on the other hand the outcome of international climate change policy depends on the capability of national governments to formulate adequate political goals and programs, and to have the power for their realisation and implementation in the national political process. The following analysis will focus on the differences in climate change policy in Gerrnany and the United States. From a po1itical science perspective, it has to deal with the determinants and restrictions of the policy-making processes and their impact on policy formulation and implementation in both countries. Two kinds of determinants will be considered: structural "internal" determinants deriving from the specific setting and mode of operation of the political-administrative systems, and external determinants, such as public opinion, the role of the media. interest groups, and cultural values, which favour or restrict the process of a pro-active climate change policy.
    Keywords: ddc:320
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: English
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    Wuppertal : Wuppertal Institut für Klima, Umwelt, Energie | Wuppertal : Wuppertal Institut für Klima, Umwelt, Energie
    Publication Date: 2022-02-18
    Description: This paper takes a look at the development of freight transport and its further perspectives in the light of environmental sustainability. It clearly challenges the traditional view that further growth in freight transport is indispensable whatever stage of economic development an individual economy has achieved. Moreover it suggests measures to be taken into consideration in sectors other than the transport sector which may help to break the trend of continuing freight transport growth. Current developments of freight transport volume and modal split are rather counterproductive as regards curbing the unwanted environmental impacts. As growth in volume is a major contributing factor for most adverse effects caused, a substantial decoupling of economic growth and freight transport would be extremely helpful. While freight transport activity is almost entirely derived demand there can be no sufficient solution for the resulting environmental problems within the sector itself. Therefore, it is necessary to examine potentials for reducing demand for freight transport in all sectors of the economy. Contrasting to the widely held view that freight transport is in general an inevitable prerequisite of economic development, there are potentials for reducing the freight intensity of the economy which could be far more exploited. Such potentials are increasing the share of regional production, slowing down the metabolism of materials in the economy, and substituting transfer of information for transport of physical products. While each of these potentials on its own may appear to offer limited effects, a proper combination might yield substantial results. The presented preliminary ideas suggest that the notion of everlasting freight transport growth is misleading and hint at the necessity for further research.
    Keywords: ddc:380
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: English
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    Wuppertal : Wuppertal Institut für Klima, Umwelt, Energie
    Publication Date: 2022-02-18
    Description: This report will first provide a brief account of the political developments that led to the adoption of the Kyoto Protocol. Second, it will provide a preliminary analysis of the Kyoto Protocol itself, and, third, it will assess the prospects for the further development of international climate policy and law in 1998 and beyond. Developments outside of the Kyoto negotiations will be included to further elucidate the actual international negotiations.
    Keywords: ddc:320
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: English
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    Wuppertal : Wuppertal Institut für Klima, Umwelt, Energie | Wuppertal : Wuppertal Institut für Klima, Umwelt, Energie
    Publication Date: 2022-02-18
    Keywords: ddc:330
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: English
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    Publication Date: 2022-02-18
    Keywords: ddc:330
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: English
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  • 53
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    Wuppertal : Wuppertal Institut für Klima, Umwelt, Energie | Wuppertal : Wuppertal Institut für Klima, Umwelt, Energie
    Publication Date: 2022-02-18
    Keywords: ddc:600
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: English
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  • 54
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    Wuppertal : Wuppertal Institut für Klima, Umwelt, Energie | Wuppertal : Wuppertal Institut für Klima, Umwelt, Energie
    Publication Date: 2022-02-18
    Description: The main focus of this paper is on freight transportation and food supply in the United States and in Europe especially in Germany. Organic, resp. healthy and safe food is a growing demand in both countries. People who consume organic food often believe that this contributes to an environmentally sound behaviour. But transportation issues are not or rarely taken into consideration so far, although long distance transport not only needs energy, it as well influences quality, freshness and taste of food. On both sides of the Atlantic, in freight transportation and food supply can be found a lot of differences as well as similarities. Main differences to the U.S. from the European standpoint are e.g. the bigger land area and larger and much more concentrated economic units. Quite naturally one can find a higher volume of long distance freight transport than in Europe. Similarities can be observed, but very often they present themselves in another extent, e.g. the trend towards privatisation and liberalisation, to more extended suburbanisation or to an unreflected way of consumer behaviour. In addition, this report raises some new questions: is the ’technological solution’ of environmental problems the only way? What can be done to include lifestyles and consumer behaviour into a new strategy?
    Keywords: ddc:380
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: English
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  • 55
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    Wuppertal : Wuppertal Institut für Klima, Umwelt, Energie | Wuppertal : Wuppertal Institut für Klima, Umwelt, Energie
    Publication Date: 2022-02-18
    Description: Sustainable development is the globally embraced paradigm for integrating environment and development policies. Agreement ends with attempts at operationalizing the elusive notion of sustainability. A contentious debate among "environmentalists" and "environmental economists" has brought about a confusing proliferation of indicators and policy advice on sustainable development. Greening the monetary national accounts could moderate the debate by generating concepts and indicators which translate environmental concerns into the language of widely used economic variables. The implementation of sustainable growth and development requires more. "Eco-nomic" instruments of environmental cost internalization need to be combined with environmental legislation and regulation. Such reconciliation of environmental and economic policies should be supported by a "social compact" between government and civil society. The sustained implementation of sustainable development depends on it.
    Keywords: ddc:600
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: English
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  • 56
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    Wuppertal : Wuppertal Institut für Klima, Umwelt, Energie | Wuppertal : Wuppertal Institut für Klima, Umwelt, Energie
    Publication Date: 2022-02-18
    Description: In this paper the results of an analysis of the material intensity of advanced composite materials are presented. The analysis is based on the MIPS-concept of the Wuppertal Institute which allows the calculation of the overall material intensity of products and services. It can be shown that the production of one kg of E-Glass fibers is connected with the consumption of 6.2 kg materials, 95 kg water and 2.1 kg oxygen which is of similar size compared to the inputs required in steel production. Material inputs required to produce one kg of p-aramid are 37 kg of materials and 19.6 kg air. Values for carbon fibers are even higher yielding to 61.1 kg of abiotic materials and 33.1 kg of air. Similarly, the production of epoxy resins is connected with larger material flows than the production of polyester resins. Of core materials, inputs per kg for PVCfoam exceed those in PUR-foam production by a factor of 1.4 in water to 2.3 in abiotic material consumption. However, ecologically decisive are not the inputs per kg but the material input per service unit. Therefore, the material input per service unit computed for the body of a passenger ship and a robot arm are compared with alternative steel and aluminium versions. Both examples show that in the case of significant inputs during the user phase of products, even a more material intensive investment in the production phase can yield significant ecological benefits over the whole life-cycle compared to metal versions. Improvements can easily reach a factor of two albeit significant potential for engine optimizations have still been neglected. Results already include the actual recycling quota of metals whereas for composites only virgin material has been calculated as any form of real recycling does not actually exist but only certain types of downrecycling. Of those treatment options, first material recycling and second the use in blast furnaces would lead to better results in resource productivity than incineration and landfills. The paper finally draws some conclusions about the potential advantages of material substitution in the automotive industry. Due to the rather short real operation time of cars during their user phase - around six months - an investment in advanced composite materials in car production only results in a significant improvement of the overall eco-efficiency of cars if it allows a substantial weight reduction of the overall vehicle.
    Keywords: ddc:600
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: English
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    Wuppertal : Wuppertal Institut für Klima, Umwelt, Energie
    Publication Date: 2022-02-18
    Keywords: ddc:320
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: English
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  • 58
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    Wuppertal : Wuppertal Institut für Klima, Umwelt, Energie | Wuppertal : Wuppertal Institut für Klima, Umwelt, Energie
    Publication Date: 2022-02-18
    Keywords: ddc:330
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: English
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  • 59
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    In:  Protokoll über das Kolloquium Elektromagnetische Tiefenforschung: 16. Kolloquium: Burg Ludwigstein, 9.4.-12.4.1996
    Publication Date: 2021-11-23
    Language: English
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  • 60
    Publication Date: 2021-11-22
    Language: German , English
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  • 61
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    In:  Protokoll über das Kolloquium Elektromagnetische Tiefenforschung: 16. Kolloquium: Burg Ludwigstein, 9.4.-12.4.1996
    Publication Date: 2021-11-03
    Description: Analyses of magnetotelluric (Mn and magnetovariational (MV) data from 20 sites spanning southe~ Kenya has revealed significant three-dimensional effects. Consideration of both regional geology and induction arrow transfer functions implies the importance of two principal strike directions : One delineated by the N-S trending rift, the other controlled by a continental scale, Protorozoic , NW-SE striking , fault fabric. The hypothesis that the induction arrows might be explicable in terms of the near-surface expression of the conductive infill of the rift, together with a deep-seated , NW-SE striking conductor extending into the upper mantle is borne out by three-dimensional modelling . Spatially and directionally , the mantle conductor may correspond with a low velocity zone modelled from teleseismic data and both geophysical signatures may relate to a major, NW-SE striking shear zone system which has been mapped at the surface. A low velocity zone modelled from seismic refraction data recorded along a profile which crosses the rift at the same latitude as the MT measurements has been speculatively attributed to a few percent partial melt in the mantle directly below the rift. No support for this interpretation is provided by the MV data.
    Language: English
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  • 62
    Call number: IASS 21.94624
    Type of Medium: Monograph available for loan
    Pages: XXIII, 230 S.
    ISBN: 9781853833298 , 1853833290 , 185383324X
    Language: English
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  • 63
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    In:  Protokoll über das Kolloquium Elektromagnetische Tiefenforschung: 16. Kolloquium: Burg Ludwigstein, 9.4.-12.4.1996
    Publication Date: 2021-10-06
    Language: English
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  • 64
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    In:  Protokoll über das Kolloquium Elektromagnetische Tiefenforschung: 16. Kolloquium: Burg Ludwigstein, 9.4.-12.4.1996
    Publication Date: 2021-10-06
    Language: English
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  • 65
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    In:  Protokoll über das Kolloquium Elektromagnetische Tiefenforschung: 16. Kolloquium: Burg Ludwigstein, 9.4.-12.4.1996
    Publication Date: 2021-09-30
    Description: Long period magnetotelluric and magnetovariational (MT /MV) measurements in West Bohemia carried out along the profile Cheb- Tachov- Nyrsko, close to the Czech-German border, display a striking similarity with analogous data from the immediate vicinity of the KTB borehole. On the other side, broad band AMT /MT /MV data along the seismic reflection traverse 9HR, measured by the Free Univ. of Berlin and Geofyzika Inc. Brno, show a substan tially more complex geoelectrical structme in the region to the east of the West Bohemian fault zone, indicating a discontinuous geoelectrical character when approaching the western margin of the Bohemian Massif. To assess the large scale geoelectrical changes in the E-W direction, additional long period MT measurements have been carried out at 8 localities in the area between the two basic NW-SE profiles. The new stat ions were arranged along two short profiles, one traversing the West Bohemian faults into the TeplaBarrandien zone and the other running just along the Central Bohemian deep fault. Preliminary analysis of those measurements is presented in this contribution.
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  • 66
    Publication Date: 2021-09-29
    Language: German , English
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  • 67
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    In:  Protokoll über das Kolloquium Elektromagnetische Tiefenforschung: 17. Kolloquium: Neustadt an der Weinstraße, 9.3.- 13.3.1998
    Publication Date: 2021-09-28
    Language: English
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  • 68
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    In:  Protokoll über das Kolloquium Elektromagnetische Tiefenforschung: 17. Kolloquium: Neustadt an der Weinstraße, 9.3.- 13.3.1998
    Publication Date: 2021-09-28
    Language: English
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  • 69
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    In:  Protokoll über das Kolloquium Elektromagnetische Tiefenforschung: 17. Kolloquium: Neustadt an der Weinstraße, 9.3.- 13.3.1998
    Publication Date: 2021-09-28
    Description: Well-known Dey & Morrison's [l] finite difference (FD ) algorithm for the 2-D modelling of direct currents is modified for generally anisotropic 2-D structures. By Fourier transforming the general current conservation equation with respect to the strike coordinate, the original 2½-D problem for the potential of a single feeding electrode is decomposed into an infinite number of 2-D problems in the wave number domain. Applying the area discretization (volume integration) scheme to the transformed 2-D PDEs, a 9-point FD stencil is obtained at each mesh node within the anisotropic structure, with generally complex elements for the direct neighbours of the central node. The resulting FD matrix is banded, 9-diagonal, complex and non-symmetric, but Hermitian. Gaussian elimination for real, symmetric and banded matrices is slightly modified to apply to the Hermitian matrices, and used to solve for the wave number potential components . Numerical tests and modelling examples of 2-D anisotropic structures are presented. Extension of the technique to 3-D models with anisotropy is discussed.
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  • 70
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    In:  Protokoll über das Kolloquium Elektromagnetische Tiefenforschung: 17. Kolloquium: Neustadt an der Weinstraße, 9.3.- 13.3.1998
    Publication Date: 2021-09-28
    Language: English
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  • 71
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    In:  Protokoll über das Kolloquium Elektromagnetische Tiefenforschung: 17. Kolloquium: Neustadt an der Weinstraße, 9.3.- 13.3.1998
    Publication Date: 2021-09-27
    Language: English
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  • 72
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    In:  Protokoll über das Kolloquium Elektromagnetische Tiefenforschung: 17. Kolloquium: Neustadt an der Weinstraße, 9.- 13.3.1998
    Publication Date: 2021-09-27
    Description: Magnetotelluric fieldwork was carried out in the southwest of Ireland as part of an integrated study of the Variscan Front. Data from a network of stations in southwest Ireland were collected, processed and modeled using a variety of equipment and computational methods. Extensive 2D modeling and inversion yielded models which gave insights into Variscan processes. 3D modeling yielded a strong yet surprising result showing the interaction of Variscan and Caledonian processes. Profile and regional models are developed and described.
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  • 73
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    In:  Protokoll über das Kolloquium Elektromagnetische Tiefenforschung: 17. Kolloquium: Neustadt an der Weinstraße, 9.3.- 13.3.1998
    Publication Date: 2021-09-27
    Language: English
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  • 74
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    In:  Protokoll über das Kolloquium Elektromagnetische Tiefenforschung: 17. Kolloquium: Neustadt an der Weinstraße, 9.- 13.3.1998
    Publication Date: 2021-09-22
    Language: English
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  • 75
    Publication Date: 2021-08-21
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  • 76
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    Deutsches GeoForschungsZentrum GFZ
    In:  Scientific Technical Report STR
    Publication Date: 2021-08-21
    Language: English
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  • 77
    Publication Date: 2021-08-14
    Description: The history of the study of Polar Motion began with the derivation of the equations for the rotation of a rigid body by Euler published in 1758. This was followed by further theoretical contributions made by Lagrange (1788) and Poinsot (1834). To confirm the existence of the polar motion of the Earth in terms of a variation of latitude, intensive efforts were undertaken at several observatories toward the end of the 19th century. During the 7th General Conference of the European Arc Measurement in Rome in October 1883, Fergola had already suggested to investigate the problem. The latitude variation was detected by K¨ustner at the Berlin Observatory in 1888. Following this, during the Annual Conference of the Permanent Commission of the ”Internationale Erdmessung” in Salzburg in September 1888, Foerster proposed to consider the variation of latitude more systematically by a Special Commission. Activities began quickly, and after considerable effort the International Latitude Service (ILS) started in September 1899. The paper reviews, in which way the Geodetic Institute Potsdam contributed to the foundation of the ILS and took part in its activities through the work of Helmert, Albrecht,Wanach and Mahnkopf. Based on international scientific cooperation, the results were the rectangular coordinates of the Polar Motion from 1890.0 to 1922.7 at 0.1 year intervals, in particular those derived from the latitude observations at independent stations from 1890.0 to 1899.8, and those derived from the latitude observations at the ILS stations from 1899.9 to 1922.7
    Language: English
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  • 78
    Publication Date: 2021-08-14
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  • 79
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    GeoForschungsZentrum GFZ
    In:  Scientific Technical Report STR
    Publication Date: 2021-08-14
    Language: English
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  • 80
    Publication Date: 2021-08-09
    Description: Variations of annual and semiannual oscillations in rotation parameters have been investigated on the basis of length-of-day (LOD) as well as atmospheric-angular-momemtum (AAM) time series. These oscillations were deter- mined using band-pass filters. In order to show the character of variations of seasonal oscillations, amplitudes, phases and periods were computed by a least-squares adjustment with the method of modified harmonic analysis at quarterly intervals. In addition, the seasonal imbalances in LOD and AAM budgets were determined and analysed in a similar way. These discrepancies were corrected for tidally excited effects. The non-atmospheric oscillations without the annual tide effect Sa and the semiannual tide effect Ssa have changeable amplitudes between 0.02 and 0.10 ms.
    Language: English
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  • 81
    Publication Date: 2021-08-09
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    GeoForschungsZentrum GFZ
    In:  Scientific Technical Report STR
    Publication Date: 2021-08-08
    Language: English
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  • 83
    Monograph available for loan
    Monograph available for loan
    Berlin, Heidelberg : Springer Berlin Heidelberg
    Call number: M 21.95915
    Description / Table of Contents: Clays and soils are of great importance in various scientific fields, such as agriculture and environmental science, and in mineral deposits. Students and close collaborators of Georges Millot, the eminent French clay sedimentologist, have put together a book with topics ranging from weathering processes and diagenetic evalution of sediments to sedimentary mineral deposits. The book is of interest to practitioners, advanced students as well as teachers in the above fields
    Type of Medium: Monograph available for loan
    Pages: 369 Seiten , Illustrationen
    Edition: Online edition Springer eBook Collection. Earth and Environmental Science
    ISBN: 978-3-642-64443-6
    Language: English
    Location: Upper compact magazine
    Branch Library: GFZ Library
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  • 84
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-202-118
    In: Research report / Cold Regions Research and Engineering Laboratory, 118
    Description / Table of Contents: Summary: The observation that newly frozen ice sheets, resulting from pools of -water freezing over,- support more than would be predicted by ordinary theory is assessed. A solution is presented for a circular plate on an elastic, sealed foundation. Graphical results are shown for supports at the circumference of the plate. Graphs to obtain moments in a circular plate on an elastic bearing surface, using a sealed or unsealed foundation, are compiled for fixed and simple supports. In reality the foundation may not be completely sealed, calling for discretion in selecting the actual moment. The ability of the refrozen ice sheet to support the extra load is explained by the fact that the water has been sealed between the surface and main sheet of ice and the volume occupied by the water cannot change.
    Type of Medium: Series available for loan
    Pages: iii, 14 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory 118
    Language: English
    Location: AWI Archive
    Branch Library: AWI Library
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  • 85
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-202-117
    In: Research report / Cold Regions Research and Engineering Laboratory, 117
    Description / Table of Contents: Summary: An experiment was designed to investigate operator-variance in the determination of the plastic limit of cohesive soils, independent of sample preparation and hydration time. A standard sample was prepared by dry-mixing commercial clay, "Grundite", with a pure silt. After the sample was hydrated for 3 weeks, five random samples were taken and five replicates performed on each sample. Analysis of variance (AOV) shows that there is no reason to doubt that the sample is homogeneous at the 0.05 level of significance. Random samples were then distributed to five zones of operators, where a zone is defined as a group of operators with similar backgrounds and engineering interests. Two operators from each group performed five replicates. The AOV model used in the analysis is mixed with the upper level fixed and the two lower levels random. The estimated "within" and "between" operator variances are 0. 45 and 4. 18 respectively. The estimated "between zones" contribution to the total sum of squares is negative. No correlation was found between an operator's internal variance and his deviation from the grand mean. On the basis of this experiment, no reason-exists to doubt that an "untrained" operator can obtain results comparable to those of professional operators. The major factor contributing to the total sample variance is the inconsistency between the individual operators who, although able to duplicate their own determinations, do not call the same end point. To minimize between operator variance, a readily prepared standard sample is suggested with which any operator can calibrate his plastic limit determinations against the expected national average.
    Type of Medium: Series available for loan
    Pages: iv, 8 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory 117
    Language: English
    Note: CONTENTS Preface Summary ­Introduction Sample preparation Sample homogeneity Distribution of samples Analysis Conclusions and suggested standardization References
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  • 86
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-202-119
    In: Research report / Cold Regions Research and Engineering Laboratory, 119
    Description / Table of Contents: Summary: An experimental investigation of stress-wave propagation in snow and ice is described. Seven types of Greenland snow were investigated to determine the extent to which the variation in dynamic response of the snow is a function of snow types, and were compared with results of similar Michigan snow experiments. A low-density explosive charge was detonated, sending a steep-fronted shock wave through a metal transfer plate and into the snow sample, compressing the snow and setting it in motion. Measurements were made on shock waves with amplitudes of less than 200 atm. Density and pressure behind the wave fronts were determined by simultaneous measurement of wave-propagation and particle velocity as limited by the fast elastic wave and the slow plastic wave of the two-front structure. Values calculated by the Rankine-Hugoniot jump conditions determined the points at which the material behaves plastically or hydrodynamically. The maximum stable pressure-volume states that snow can reach under shock loading are also shown. Sources of scatter in the results from variations in snow type and errors in data reduction and geometry changes are pointed out.
    Type of Medium: Series available for loan
    Pages: v, 25, A11 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory 119
    Language: English
    Note: CONTENTS Test area description Experimental techniques Explosive initiation system Grid lines on snow Grid lines on driving plates The streak camera Synchronization of camera and event Synchronization of flash bulb and event Timing-light generator High-speed framing camera
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  • 87
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-202-115
    In: Research report / Cold Regions Research and Engineering Laboratory, 115
    Description / Table of Contents: SUMMARY Between 1 July and 7 August 1960, the U.S. Army Snow Ice and Permafrost Research Establishment, Corps of Engineers, supported a £our-man glaciological expedition on the southern dome of the Greenland ice sheet. Measurements of snow temperature, density, ram hardness, and grain size were made at seven pit ~tudies along 191 mileS of over-snow traverse. In addition to the pit studies, 38 Rammsonde profiles were measured and 166 shallow pits were dug to measure temperature in the first meter of snow. The annual accumulation of snow was found to decrease westward, from 97 em water equivalent 50 miles from tP.e east coast, to 40 em 80 miles from the western margin. A possible precipitation shadow was encountered immediately west of the crest line of the ice sheet. The precipitation shadow and the decrease in accumulation westward indicate that the source area for the precipitation lies to the east of the southern dome, in the. Greenland Sea. Temperature profiles in the firn indicated that summer warming was still in progress. During August, melting at an elevation of 2000 m above se~ level was intense (OC in the top 75 em} •. According to the facies classification of glaciers (Benson, 1959, 1960}, most of the study area is in tfie percolation facies, with the possible exception of the westernmost· s.tation (mile l-138) which is at or near the saturation line. The daily heat exchange in the first meter of snow, near the time of maximum melt conditions, is between 20 and '35 cal/cinZ. This is approxi-mately 25o/o of the heat necessary to raise the temperature of a column of firn of unit cross Section and 1 m deep to the melting point. Effective values of thermal conductivity and diffusivity as determined from the temperature curves with no attempt made to isolate radiation and con-vection are, respectively, 4-6 x 10-3 cgs and 20-30 x 10-3 cgs. Radiation and convection in the first meter of firn cause "effective conductivity" values to be 4 to 7 times greater than the value k = 0. 0068pZ given by Abel's (1892), which is the conductivity at greater depths.
    Type of Medium: Series available for loan
    Pages: v, 22, A4, B1 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory 115
    Language: English
    Note: CONTENTS Preface Summary Introduction Method of investigation Location Pit studies Temperature Hardness Density Stratigraphic measurements Thermal studies Stratigraphic features Grain size Grain shape Crusts Discussion of results Temperature Altitude gradient Latitude gradient Depth-density relationship Depth-load relationship Densification Stratigraphic analysis Facies relationship Climatological aspects 1960 meteorological observations Temperature Wind Barometric pressure Radiation Cloudiness Visibility Thermal studies Summary and conclusions References Appendix A Appendix B
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  • 88
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-202-108
    In: Research report / Cold Regions Research and Engineering Laboratory, 108
    Description / Table of Contents: Summary: The theory of snow densification is further developed on the basis of an exponential relation between viscosity and density. A linear relation between load-stress and strain rate is not valid for high stresses, and is replaced by a hyperbolic sine function. An empirical function is given for the temperature cycle correction. Two equations are derived for calculating depth-density curves with computers, and a simplified one for use with desk calculators. Instructions are given for determination of function parameters from field data. Four depth-density curves for Greenland and Antarctic locations are computed and graphed to show that the theory is useful.
    Type of Medium: Series available for loan
    Pages: iv, 18, A3, B5 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory 108
    Language: English
    Note: CONTENTS Preface Summary Introduction Notation Stress analysis Analysis of densification process Non-Newtonian densification Equation for hyperbolic sine densification law Determination of parameters Discussion Glaciological engineering aspects References Appendix A: Example of calculation Appendix B: Snow density profiles
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  • 89
    Call number: ZSP-202-111,1
    In: Research report / Cold Regions Research and Engineering Laboratory, 111,1
    Description / Table of Contents: Summary: Optical scintillation, visual resolution, and wind and temperature profiles were measured over snow, ice and frozen ground. The data were analyzed to determine relationships between (1) scintillation and visual resolution and (2) scintillation and meteorological and surface conditions. The experimental results included (1) estimates of the limit of visual resolution, (2) telephotometer measurements of the apparent fluctuations in brightness (scintillation) of an artificial light source, and (3) measurements of wind direction and of the vertical distributions of wind speed and temperature. The optical path was 543 m long and 1.5 m above uniform horizontal surfaces. All scintillation and meteorological data are given in an appendix. The principal results of the analysis showed that for turbulent flow in stable stratification over snow (1) visual resolution deteriorated systematically as scintillation increased in intensity and (2) scintilliation intensity increased with increase in vertical temperature gradient. Scintilliation was at a minimum in the absence of thermal stratification and at a maximum (in very stable thermal stratification) during the sudden transition from laminar to turbulent flow. For a given temperature gradient, scintilliation increased with increase in wind speed. When wind and temperature gradients were combined in terms of the Richardson number and related to scintilliation, the data obtained over snow indicated a critical Richardson number of about 0.35. Scintilliation power spectra for eight periods revealed characteristics that could be related to visual resolution, the Richardson number and the mean wind speed component normal to the optical path. NOTE: This file is large. Allow your browser several minutes to download the file.
    Type of Medium: Series available for loan
    Pages: iii, 32, A17, B44 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory 111,1
    Language: English
    Note: CONTENTS Preface Page Summary Introduction The problem Previous work Plan of the investigation Conclusions Visual resolution and scintillation Visual resolution and wind, temperature, and surface conditions Visual resolution and height and length of optical path Results Measurements Analysis and discussion Visual resolution and scintillation relationships Scintillation and micrometeorological parameters Index of refraction fluctuations Scintillation and the temperature profile Scintillation and average wind speed Combined effects of wind speed and temperature gradient Scintillation and surface roughness Scintillation power spectra Scintillation and path length References Appendix A: Equipment and procedures Appendix B: Micrometeorological and scintillation data
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  • 90
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-202-110
    In: Research report / Cold Regions Research and Engineering Laboratory, 110
    Description / Table of Contents: Summary: Nafe's (1957) presentation of reflection and transmission coefficients at a solid-solid interface was used to compute tables for the case of ice in contact with another solid at a plane interface. Energy ratios of all the combinations of reflected and refracted plane P and S waves were computed for 30 different cases of the second solid. A compressional velocity of 3.6 km/sec, a density of 0.9 g/cm^3, and a value of 1/3 for Poisson's ratio were assumed for the ice. For the other solid, the velocity ranged from 1.2 to 6.0 km/sec, the density from 1.5 to 3.0 g/cm^3, and Poisson's ratio from 0 to 1/3. The computations were carried out with an electronic computer, and the results are presented graphically.
    Type of Medium: Series available for loan
    Pages: iv, 17 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory 110
    Language: English
    Note: CONTENTS Preface Summary Introduction Definitions Computation Results
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  • 91
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-202-112
    In: Research report / Cold Regions Research and Engineering Laboratory, 112
    Description / Table of Contents: Summary: The age hardening of artificially and naturally compacted snow has been investigated at the South Pole. Results show that the age-hardening process is greatly retarded at low temperatures. Artificially compacted samples of density 0.55 g/cm^3 attained a compressive strength of less than 3.0 kg/cm^2 after one year's aging at -49°C. Exposure to solar radiation accelerated the age hardening. Irradiated samples attained a strength of 6.0 kg/cm^2 after 100 hr, increasing to a virtual maximum of 8.0 kg/cm^2 at 600 hr. Compressive strengths increased witha decrease in snow-particle size and with an increasing angularity of the particles. Below 3 m the strength of naturally compacted snow was found to increase rapidly with an increase in density. Naturally compacted snow of density 0.55 g/cm^3 possessed considerably greater strength than any of the age-hardened samples of artificially compacted snow of the same density. Thin-section studies show that age hardening can be correlated with the formation and growth of intergranular bonds, and that bond growth falls off rapidly with decreasing temperature. In view of the low strength found in both naturally and artificially compacted snow at the South Pole, "cut-and-cover" undersnow camp construction may not prove practical at the South Pole.
    Type of Medium: Series available for loan
    Pages: v, 19, A6 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory 112
    Language: English
    Note: CONTENTS Preface Summary Introduction Previous work Experimental methods Experimental results Series A Series B Series C Series D Series E Discussion Conclusions References Appendix A
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  • 92
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-202-101
    In: Research report / Cold Regions Research and Engineering Laboratory, 101
    Description / Table of Contents: Partial Summary: This paper is a pilot study of interrelations between structural features readily observed in horizontal thin sections of sea ice under low magnification. The core studied was 31.4 cm in length and was collected from Elson Lagoon at Point Barrow, Alaska on 26 October 1960.
    Type of Medium: Series available for loan
    Pages: iv, 11 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory 101
    Language: English
    Note: CONTENTS Preface Summary Introduction Petrographic characteristics Intercrystalline features Intracrystalline features References
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  • 93
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-202-103
    In: Research report / Cold Regions Research and Engineering Laboratory, 103
    Description / Table of Contents: Summary: The effect of air flow on the thermal conductivity of snow was investigated. Steady-state temperature measurements were made along the edge and axis of a cylindrical bed of snow to determine the effective axial thermal conductivity of snow. Unconsolidated snow samples were used, with densities ranging from 0.376 to 0.472 g/cm^3 and corresponding snow particle sizes of 0.065 to 0.219 cm nominal diameter; the mass flow rates employed ranged from approximately 10-40 x 10^-4g/cm^2 sec. Snow density and sample size apparently have opposite effects on the effective thermal conductivity because of the flow of fluid in snow. The test apparatus is described in detail and is illustrated. The results of the experiments are tabulated, and a least square equation is given which represents the results well.
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    Pages: iv, 14, A2 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory 103
    Language: English
    Note: CONTENTS Preface Summary Introduction Theory Apparatus and experimental procedure Results and discussion References Appendix A: Sample calculations of a and ke
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  • 94
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-202-105
    In: Research report / Cold Regions Research and Engineering Laboratory, 105
    Description / Table of Contents: Summary: A principle of particle segregation by freezing is presented. It is demonstrated experimentally by using a transparent freezing cabinet in which a sample of distilled water freezes from the bottom upward. In this way the freezing front line travels vertically and the particles are carried against gravity. By using the same material with different shapes (glass beads and broken quartz or glass) it is demonstrated that an important factor in particle migration is the shape of the particle or its contact area with the interface. By testing other materials with different shapes and sizes, it is demonstrated that another important factor is particle size and rate of freezing. Fine particles migrate under a wide range of rates of freezing; coarser ones migrate at lower and more limited ranges of rates of freezing. It is suggested that, for determining frost behavior of soils in permafrost regions, freezing from the bottom upward is a more reliable test than freezing from the top down. Freezing from the bottom more closely approximates freezing of the active layer above permafrost; also, friction with the cylinder testing wall is eliminated. The implication of this principle in engineering and studies of soil genesis in cold regions is emphasized.
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    Pages: iv, 8 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory 105
    Language: English
    Note: CONTENTS Preface Summary Introduction Experimental procedure Experimental results Conclusions and recommendations References
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  • 95
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-202-107
    In: Research report / Cold Regions Research and Engineering Laboratory, 107
    Description / Table of Contents: Summary: The formation of lake ice was studied during the winter of 1956-57 at Post Pond, Lyme, N. H. Tabular, columnar, granular, and crenulate textures of 36 blocks of ice observed are discussed in terms of relative growth velocity and shown in a classification chart. Ice structures are characterized by Forel striations, Tyndall figures, bubbles and strain shadows. Average crystal areas increased with ice thickness, the rate of increase being greater toward lake center, and ceased to enlarge when in a continuous bubble layer. The lake-ice sheet grew both from top and bottom, .downward growth resulting from crystals in a favorable vertical orientation of a-axes and upward growth coming about by water flowing on the original upper ice surface and freezing. Exception to this type of growth was found in the lake area which froze first, where individual crystal areas were larger at the surface and there was no upper surface ice accretion. Fabric diagrams of ice outside the anomolous area show a change of optic axis orientation from a high percentage of c-axes vertical near the surface to a high percentage horizontal at the bottom.
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    Pages: iv, 22, A2, B1 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory 107
    Language: English
    Note: CONTENTS Preface Summary Description of the lake Cli rna te of the lake Methods of study Ice textures Crystal size Ice structures Crystal fabric studies Growth of an ice sheet References Appendix A: Weather data Appendix B: Sample data
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  • 96
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-202-99
    In: Research report / Cold Regions Research and Engineering Laboratory, 99
    Description / Table of Contents: Summary: A study of how age hardening affects the various mechanical properties of processed snow was made. A description of how the age hardening process is affected by the variables of density, temperature, grain size, and shape is given. An empirical equation relating creep rate to stress, age, and density was obtained. The study also shows that the various mechanical properties are related to age by an exponential function.
    Type of Medium: Series available for loan
    Pages: iv, 12 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory 99
    Language: English
    Note: CONTENTS Preface Summary Introduction Experimental facilities Experimental in-place measurements Density and homogeneity of processed snow Ram hardness Temperature measurements Mechanical properties Unconfined compressive strength Stress-strain relationships in unconfined compress ion Creep in unconfined compression Tensile strength Discussion of results References
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  • 97
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-202-100
    In: Research report / Cold Regions Research and Engineering Laboratory, 100
    Description / Table of Contents: From the Summary: During the summer of 1960, observations were made of ground fog on the Greenland Ice Cap and of sea fog in the Thule area in northwestern Greenland. A microscope-stage-fog impactor was designed, and its collection efficiency determined both empirically and by computation from the theoretical work of Langmuir and Blodgett (1946). The empirical efficiency was found to be considerably greater than the theoretical efficiency.
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    Pages: iv, 13 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory 100
    Language: English
    Note: CONTENTS Preface Summary Introduction Method Design and operation of the impactor Collection efficiency Computation from theoretical values of Langmuir and Blodgett Empirical values Observations and results Fog on the ice cap Sea fog near Thule Discussion Conclusions References
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  • 98
    Call number: AWI Bio-21-94361
    Type of Medium: Monograph available for loan
    Pages: 601 Seiten , Illustrationen , 26 cm
    ISBN: 094873745x
    Language: English
    Note: Contents Introduction Acknowledgements Classification of British diatoms New combinations References Description of plates Index to the genera and plates
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  • 99
    Monograph available for loan
    Monograph available for loan
    San Diego [u.a.] : Academic Press
    Call number: AWI Bio-21-94360
    Type of Medium: Monograph available for loan
    Pages: XV, 858 Seiten , Illustrationen
    ISBN: 012693018X (pbk.)
    Language: English
    Note: Contents Editor's Foreword Contributors' Forewords Acknowledgments Chapter 1 lntroduction and historical background / Grethe R. Hasle and Carmelo R. Tomas Chapter 2 Marine Diatoms / Grethe R. Hasle and Erik E. Syvertsen Introduction General Characteristics Life Cycles Morphology and Terminology Classification Genera Represented in Marine Plankton Centric Diatoms Pennate Diatoms Identification Content Description of Taxa Centric Diatoms Pennate Diatoms Methodology Collection and Concentration Unialgal Cultures as a Means for Species Identification Preservation and Storage Preparation for Light Microscopy Preparation for Electron Microscopy Microscopy What to Look for-General Hints for Identification and Preparation Taxonomic Appendix New Genus New Names Validation of Names New Nomenclatural Combinations Common Diatom Synonyms Index of Diatom Taxa References Chapter 3 Dinoflagelates / Karen A. Steidinger in Collaboration with Karl Tangen Introduction General Characteristics Dinoflagellates: Eukaryotic Unicells Terminology and Morphology Morphological Types General Cell Terms Microanatomy Characters Used in Identifying Prorocentroid Desmokont Cells Characters Used in Identifying Dinokont Cells Identification of Species Techniques for Preparation of Dinoflagellates for Identification Common Dinoflagellate Synonyms Index of Dinoflagellate Taxa References Chapter 4 Introduction / Carmelo R. Tomas Chapter 5 The Planktonic Marine Flagellates / Jahn Throndsen Introduction General Considerations Algal Flagellate Characteristics Flagellate Terminology Phytoflagellate Taxanomy Phytoflagellate Systematics Chromophyta Cryptophyceae Raphidophyceae Chrysophyceae Dictyochophyceae Prymnesiophyceae-Haptophyceae (Exclusive of Coccolithophorids) Chlorophyta Euglenophyceae Prasinophyceae Chlorophyeae Zooflagellates (Phylum Zoomastigophora) Choanoflagellidea Kinetoplastidea Ebriidea Techniques Preparing Samples for Observation Cultivation for Identification Preparation of Samples for Further Studies Specific Problems to Avoid Common Flagellate Synonyms Glossary Index of Flagellate Taxa References Chapter 6 Modern Coccolithophorids / Berit R. Heimdal Introduction General Characteristics Terminology and Morphology Problems in Studying Recent Coccolithophorids Classification Outline for Classification and Arrangement of Genera Systematic Descriptions Holococcolithophorids Heterococcolithophorids Common Coccolithophorid Synonyms Index of Coccolithophorid Taxa References Glossary General Index
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  • 100
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-202-90
    In: Research report / Cold Regions Research and Engineering Laboratory, 90
    Description / Table of Contents: Summary: A new method is presented for extracting more meaningful information from snow profile data which will simplify the study of the permeability of snow. Earlier analyses normally employed statistical methods to determine property variations with depth, with the line of mean values established by the method of least squares. The mean curves derived in this manner may not represent properly the true nature of the snow pack, or aid in understanding the dynamic processes which are in action. The new graphical methods described distinguish the separate effects of densification and thermal metamorphism on permeability, permitting future advances in the analysis. Profile data obtained in 1954 and 1960 are reanalyzed using the new techniques. For a natural polar pack under conditions when no melting occurs and the accumulation is assumed continuous, the following conclusions may be made: permeability for a given density of snow increases with depth and time except possibly near the surface or at depths below 30 m; the rate of permeability change with depth for given densities decreases in a calculable way relative to the density; and, mean permeability changes with depth in a complex manner.
    Type of Medium: Series available for loan
    Pages: iv, 14, A3, B2, C2 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory 90
    Language: English
    Note: CONTENTS Preface Summary Introduction Standard methods of data presentation- A class interval method of data presentation Interpretation of the numerical data Interpretation of thin sections Conclusions References Appendix A Appendix B Appendix C
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