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  • Other Sources  (12)
  • Wiley  (4)
  • Reidel  (3)
  • Reimer  (3)
  • Cambridge University Press  (2)
  • 2010-2014
  • 1980-1984  (12)
  • 1981  (12)
  • 1
    Publication Date: 2024-04-08
    Description: Die regional-geologische Aufnahme im Maßstab 1:100.000 der chilenischen Hauptkordillere zwischen 34° und 34°30' südlicher Breite ließ eine etwa 10.000 m mächtige und verschiedenartig deformierte stratigrapnisehe Abfolge erkennen, die teilweise von Intrusivkörpern durchschlagen ist.
    Description: thesis
    Description: DFG, SUB Göttingen
    Keywords: ddc:551.7 ; ddc:551.8 ; ddc:558 ; Paläogeografie ; Magmatismus ; Tektonik ; Geologie
    Language: German
    Type: doc-type:book
    Format: 280
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  • 2
    Publication Date: 2024-04-08
    Description: Der Einsatz des LANDSAT-Satellitensystems zur Abbildung nahezu der gesamten Erdoberfläche (Maßstab 1 : 1 000 000) hat den Geowissenschaften, nicht zuletzt der Geologie, neues Datenmaterial erschlossen, das als zusätzliche Information bei der Bearbeitung großer Gebiete herangezogen werden kann. Der multispektrale Ansatz des Satellitensystems, d. h. die Abbildung der Erdoberfläche in verschiedenen Spektralbereichen vom Grün bis zum nahen Infrarot, macht neue Arbeitsmethoden zur Datenanalyse notwendig.
    Description: thesis
    Description: DFG, SUB Göttingen
    Keywords: ddc:551.8 ; ddc:550.285 ; Satellitenbildauswertung ; Gesteinsoberfläche ; Gestein ; Klassifikation ; Luftbild
    Language: German
    Type: doc-type:book
    Format: 108
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  • 3
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    Reimer
    In:  Herausgeberexemplar
    Publication Date: 2024-04-08
    Description: Die Insel Elba nimmt im Zusammenhang mit der alpinen und apenninen Gebirgskette eine strukturell überaus bedeutende Lage ein. So befindet sich diese größte Insel des toskanischen Archipels auf einer überleitenden Position zwischen dem nordostvergenten Nordapennin und dem westvergenten alpinen Teil Korsikas. Das Gesamtbild Elbas wird von ophiol ithischen Gesteinen mit ihrem sedimentären Auflager bestimmt. Im Ost- und Mittelteil der Insel sind weitgehend Nordapenninverhältnisse gegeben. Die Deformation der toskanischen und ligurischen Einheiten ist streng ostvergent, wobei in den eugeosynkl in〈* len Liguriden, welche klar mit der Bracco-Einheit korreliert werden können, Erscheinungen einer Thermodynamometamorphose fehlen. Dagegen werden auf West-Elba in den Ophiol ithserien enorme Abweichungen schon im Aufschlußbild deutlich, da diese intensiv isoklinal verfaltet und kräftig geschiefert sind.
    Description: Elba, the greatest Island of the Tuscan Archipelago» has an important position within the Alpine and Apenninie chains: It is situated in the transitional zone between the NE-vergent Northern Apennines and the Alpine part of Corsica with Western vergencies. Elba shows a widespread distribution of ophiolitic rocks and their sedimentary cover. In Eastern and Middle Elba there are conditions which are largely similar to those of the Northern Apennines. The tectonic trend of the Tuscan and Ligurian units is clearly eastward. The eugeosyncl inal Ligurides, which can be correllated with the Bracco unit of the Apennines, are not affected by thermodynamometamorphism. In this respect this area differs from the Western part of Elba, where also ophiolitiferous series occur. These however show tight isoclinal folding and strong cleavage.
    Description: thesis
    Description: DFG, SUB Göttingen
    Keywords: ddc:554 ; Elba ; Ophiolith ; Tektonik ; Stratigraphie
    Language: German
    Type: doc-type:book
    Format: 169
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  • 4
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    Wiley
    In:  New York, 2nd Edition, 709 pp., Wiley, vol. 75, no. 2, pp. 2-203, (ISBN: 3-7643-7143-9)
    Publication Date: 1981
    Keywords: Correlation ; Data analysis / ~ processing ; fit ; Textbook of mathematics
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  • 5
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    Reidel
    In:  Amsterdam, Reidel, vol. 65, no. XVI:, pp. 1-14, (ISBN 0-521-80380-2 (hb), 0521-00859-X (pb))
    Publication Date: 1981
    Keywords: Nuclear explosion ; Seismology ; Discrimination ; Source
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  • 6
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    Reidel
    In:  Bull., Polar Proj. OP-O3A4, Current Research in Earthquake Prediction, Dordrecht, Reidel, vol. I, no. XVI:, pp. 221-300, (ISBN: 3-540-23712-7)
    Publication Date: 1981
    Keywords: Earthquake precursor: prediction research ; Seismicity ; Seismology ; Earthquake precursor: stresses ; Fault plane solution, focal mechanism
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  • 7
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    Reidel
    In:  Dordrecht, Reidel, vol. I, 383+VIII pp., no. Publ. No. 12, pp. 127, (ISBN 0-521-66034-3, ISBN 0-521-66948-0 paper)
    Publication Date: 1981
    Keywords: Earthquake precursor: prediction research ; Textbook of geophysics
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  • 8
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    Wiley
    In:  In: The last great ice sheets. , ed. by Denton, G. H. and Hughes, T. J. Wiley, New York, pp. 179-206. ISBN 0-471-06006-2
    Publication Date: 2017-04-10
    Type: Book chapter , NonPeerReviewed
    Format: text
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  • 9
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    Cambridge University Press
    In:  Journal of the Marine Biological Association of the United Kingdom UK, 62 . pp. 435-451.
    Publication Date: 2020-07-27
    Description: The planktonic foraminifer Globigerinoides sacculifer (Brady) was cultured under two different light intensities and in continuous darkness. High light intensity (HLI = 4oo-soo einsteins/m2/s) resulted in a longer lifespan, a greater number of chambers formed, and a larger final shell size compared with individuals cultured under low light intensity (LLI = 20-50 einsteins/m2/s) or in continuous darkness. Shell growth rates were unaffected by increasing light intensity, but gametogenesis was delayed. Continuous darkness induced a rapid onset of gametogenesis in organisms with shell lengths larger than 250 m. Feeding frequency had a greater effect on growth and reproduction than light intensity under conditions of LLI and HLI, but continuous darkness had an overriding effect on growth and reproduction owing to the rapid onset of gametogenesis which terminated the life of the mother cell. Our previous data indicated that the longevity of G. sacculifer was dependent on feeding frequency, and that G. sacculifer cultured under LLI had a lifespan of approximately 2-4 weeks. Present results suggest that the lifespan can vary from a minimum of 8 days for organisms fed daily in continuous darkness to a maximum of 54 days for organisms fed once every 7 days and maintained in HLI. It is concluded that individual G. sacculifer attain a shell size greater than 6oo ,urn only if they maintain their position in the euphotic zone. Prolonged existence below the euphotic zone would result in premature death or gametogenesis following stunted shell growth.
    Type: Article , PeerReviewed
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  • 10
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    Cambridge University Press
    In:  Journal of the Marine Biological Association of the United Kingdom, 61 (04). pp. 901-916.
    Publication Date: 2020-07-16
    Description: Symbiotic luminous bacteria have been described in, and cultured from, a number of species offish and cephalopod. Indeed only in these two groups are extracellular luminous bacteria believed to be utilized as a source of light (see Buchner (1965) and Herring (1978) for references). Despite several earlier investigations of such symbioses in cephalopods the bacteria in these animals have not been adequately identified, nor has the extent of their role been clarified. The ultrastructural relationships between bacteria and the tissues of the squid accessory nidamental gland have been investigated in the non-luminous species Loligo pealei (Lesueur) (Bloodgood, 1977) and Sepia officinalis L. (Van den Branden et al. 1979) but no comparative work on luminous species has been undertaken apart from that on Heteroteuthis dispar (Rüppell), whose photophore does not contain typical luminous bacteria (Dilly & Herring, 1978; cf. Leisman, Cohn & Nealson, 1980). The order Sepioidea contains five families, among which are the two families Sepiolidae and Spirulidae. Though the presence of luminous bacteria is known in some sepiolids (as well as in certain loliginids (order Teuthoidea)) some doubt remains about the source of light in the photophore of Spirula spirula Hoyle. The steady luminescence of this species has prompted speculation that bacteria may be involved (Harvey, 1952). In this paper we compare the anatomy and ultrastructure of the photophores of both Sepiola and Spirula in order to clarify some of these problems.
    Type: Article , PeerReviewed
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  • 11
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    Wiley
    In:  In: The oceanic lithosphere. , ed. by Emiliani, C. The Sea, 7 . Wiley, New York, pp. 1618-1684. ISBN 0-471-02870-3
    Publication Date: 2018-02-07
    Type: Book chapter , NonPeerReviewed
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  • 12
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    AGU (American Geophysical Union) | Wiley
    In:  Journal of Geophysical Research: Solid Earth, 86 (B5). pp. 3867-3880.
    Publication Date: 2021-11-03
    Description: Three arrays of ocean bottom seismographs have been deployed to study the seismicity at the northern end of the Juan de Fuca ridge system off western Canada. Nearly 100 events were located with estimated accuracies generally better than ±10 km, all lying on or near the en echalon ridge-transform fault plate boundaries as defined in this area by the magnetic anomalies, the seafloor morphology and by other geophysical data. The depths of 12 events were determined to lie between 2 and 6 km below the top of the crust. The seismograms exhibit clear P and S wave arrivals along with phases that involve P to S and sometimes S to P conversion probably at the base of the sediments beneath the instruments. The event magnitudes have been estimated from signal duration using four calibration events that were well recorded by a land station. The magnitude estimates permit the determination of rough magnitude-frequency of occurrence relations over the magnitude range of 1 to 3 that are in surprisingly good agreement with the recurrence relations for the area at larger magnitudes from 75 years of land station data. The mean P wave velocity in the uppermost mantle from the earthquake data recorded by the sea floor arrays is 7.6 km s-1 and the mean Vp/Vs ratio is 1.71 or a Poisson's ratio of 0.24.
    Type: Article , PeerReviewed
    Format: text
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