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  • 550 - Earth sciences  (26)
  • Plate tectonics
  • English  (32)
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  • 1
    Keywords: Kontinentale Erdkruste ; Pressungstektonik ; Zerrungstektonik ; Continents ; Geologia estrutural ; Geology, Structural ; Plate tectonics ; Strike-slip faults (Geology) ; Tectonique
    Description / Table of Contents: J. F. Dewey, R. E. Holdsworth, and R. A. Strachan: Transpression and transtension zones / Geological Society, London, Special Publications, 135:1-14, doi:10.1144/GSL.SP.1998.135.01.01 --- Modelling Transpression and Transtension --- Haakon Fossen and Basil Tikoff: Extended models of transpression and transtension, and application to tectonic settings / Geological Society, London, Special Publications, 135:15-33, doi:10.1144/GSL.SP.1998.135.01.02 --- Richard R. Jones and Robert E. Holdsworth: Oblique simple shear in transpression zones / Geological Society, London, Special Publications, 135:35-40, doi:10.1144/GSL.SP.1998.135.01.03 --- Shoufa Lin, Dazhi Jiang, and Paul F. Williams: Transpression (or transtension) zones of triclinic symmetry: natural example and theoretical modelling / Geological Society, London, Special Publications, 135:41-57, doi:10.1144/GSL.SP.1998.135.01.04 --- Guido Schreurs and Bernard Colletta: Analogue modelling of faulting in zones of continental transpression and transtension / Geological Society, London, Special Publications, 135:59-79, doi:10.1144/GSL.SP.1998.135.01.05 --- Continental Transform Zones --- R. W. H. Butler, S. Spencer, and H. M. Griffiths: The structural response to evolving plate kinematics during transpression: evolution of the Lebanese restraining bend of the Dead Sea Transform / Geological Society, London, Special Publications, 135:81-106, doi:10.1144/GSL.SP.1998.135.01.06 --- Enrico Tavarnelli: Tectonic evolution of the Northern Salinian Block, California, USA: Paleogene to Recent shortening in a transform fault-bounded continental fragment / Geological Society, London, Special Publications, 135:107-118, doi:10.1144/GSL.SP.1998.135.01.07 --- Derek Rust: Contractional and extensional structures in the transpressive ‘Big Bend’ of the San Andreas fault, southern California / Geological Society, London, Special Publications, 135:119-126, doi:10.1144/GSL.SP.1998.135.01.08 --- Jurriaan Reijs and Ken McClay: Salar Grande pull-apart basin, Atacama Fault System, northern Chile / Geological Society, London, Special Publications, 135:127-141, doi:10.1144/GSL.SP.1998.135.01.09 --- Christian Teyssier and Basil Tikoff: Strike-slip partitioned transpression of the San Andreas fault system: a lithospheric-scale approach / Geological Society, London, Special Publications, 135:143-158, doi:10.1144/GSL.SP.1998.135.01.10 --- Oblique Divergence Zones --- Maarten Krabbendam and John F. Dewey: Exhumation of UHP rocks by transtension in the Western Gneiss Region, Scandinavian Caledonides / Geological Society, London, Special Publications, 135:159-181, doi:10.1144/GSL.SP.1998.135.01.11 --- Roy K. Dokka, Timothy M. Ross, and Gang Lu: The Trans Mojave-Sierran shear zone and its role in Early Miocene collapse of southwestern North America / Geological Society, London, Special Publications, 135:183-202, doi:10.1144/GSL.SP.1998.135.01.12 --- M. K. Watkeys and D. Sokoutis: Transtension in southeastern Africa associated with Gondwana break-up / Geological Society, London, Special Publications, 135:203-214, doi:10.1144/GSL.SP.1998.135.01.13 --- Mark B. Allen, David I. M. Macdonald, Zhao Xun, Stephen J. Vincent, and Christine Brouet-Menzies: Transtensional deformation in the evolution of the Bohai Basin, northern China / Geological Society, London, Special Publications, 135:215-229, doi:10.1144/GSL.SP.1998.135.01.14 --- Oblique Convergence Zones --- Hans Dirk Ebert and Yociteru Hasui: Transpressional tectonics and strain partitioning during oblique collision between three plates in the Precambrian of southeast Brazil / Geological Society, London, Special Publications, 135:231-252, doi:10.1144/GSL.SP.1998.135.01.15 --- Rod Gayer, Tanya Hathaway, and Michal Nemcok: Transpressionally driven rotation in the external orogenic zones of the Western Carpathians and the SW British Variscides / Geological Society, London, Special Publications, 135:253-266, doi:10.1144/GSL.SP.1998.135.01.16 --- G. Gleizes, D. Leblanc, and J. L. Bouchez: The main phase of the Hercynian orogeny in the Pyrenees is a dextral transpression / Geological Society, London, Special Publications, 135:267-273, doi:10.1144/GSL.SP.1998.135.01.17 --- David C. Tanner, Jan H. Behrmann, Onno Oncken, and Klaus Weber: Three-dimensional retro-modelling of transpression on a linked fault system: the Upper Cretaceous deformation on the western border of the Bohemian Massif, Germany / Geological Society, London, Special Publications, 135:275-287, doi:10.1144/GSL.SP.1998.135.01.18 --- M. L. Curtis: Development of kinematic partitioning within a pure-shear dominated dextral transpression zone: the southern Ellsworth Mountains, Antarctica / Geological Society, London, Special Publications, 135:289-306, doi:10.1144/GSL.SP.1998.135.01.19 --- M. P. Searle, R. F. Weinberg, and W. J. Dunlap: Transpressional tectonics along the Karakoram fault zone, northern Ladakh: constraints on Tibetan extrusion / Geological Society, London, Special Publications, 135:307-326, doi:10.1144/GSL.SP.1998.135.01.20 --- Michel De Saint Blanquat, Basil Tikoff, Christian Teyssier, and Jean Louis Vigneresse: Transpressional kinematics and magmatic arcs / Geological Society, London, Special Publications, 135:327-340, doi:10.1144/GSL.SP.1998.135.01.21 --- Marcello Schiattarella: Quaternary tectonics of the Pollino Ridge, Calabria-Lucania boundary, southern Italy / Geological Society, London, Special Publications, 135:341-354, doi:10.1144/GSL.SP.1998.135.01.22
    Pages: Online-Ressource (360 Seiten) , Illustrationen, Diagramme, Karten
    ISBN: 186239007x
    Language: English
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  • 2
    Keywords: Südostasien ; Tektonik ; Geology, Structural ; Asia, Southeastern ; Plate tectonics
    Description / Table of Contents: Robert Hall, D. J. Blundell, and Robert Hall: Tectonic evolution of SE Asia: introduction / Geological Society, London, Special Publications, 106:vii-xiii, doi:10.1144/GSL.SP.1996.106.01.01 --- Part 1: Present-day Tectonics --- Robert McCaffrey: Slip partitioning at convergent plate boundaries of SE Asia / Geological Society, London, Special Publications, 106:3-18, doi:10.1144/GSL.SP.1996.106.01.02 --- Jacques André Malod and Badrul Mustafa Kemal: The Sumatra margin: oblique subduction and lateral displacement of the accretionary prism / Geological Society, London, Special Publications, 106:19-28, doi:10.1144/GSL.SP.1996.106.01.03 --- Claude Rangin, Daharta Dahrin, Ray Quebral, and The Modec Scientific Party: Collision and strike-slip faulting in the northern Molucca Sea (Philippines and Indonesia): preliminary results of a morphotectonic study / Geological Society, London, Special Publications, 106:29-46, doi:10.1144/GSL.SP.1996.106.01.04 --- A. N. Richardson, D. J. Blundell, and A. N. Richardson: Continental collision in the Banda arc / Geological Society, London, Special Publications, 106:47-60, doi:10.1144/GSL.SP.1996.106.01.05 --- David B. Snyder, John Milsom, and Hardi Prasetyo: Geophysical evidence for local indentor tectonics in the Banda arc east of Timor / Geological Society, London, Special Publications, 106:61-73, doi:10.1144/GSL.SP.1996.106.01.06 --- B. D. Hughes, K. Baxter, R. A. Clark, and D. B. Snyder: Detailed processing of seismic reflection data from the frontal part of the Timor trough accretionary wedge, eastern Indonesia / Geological Society, London, Special Publications, 106:75-83, doi:10.1144/GSL.SP.1996.106.01.07 --- John Milsom, Steve Kaye, and Sardjono: Extension, collision and curvature in the eastern Banda arc / Geological Society, London, Special Publications, 106:85-94, doi:10.1144/GSL.SP.1996.106.01.08 --- Part 2: Tectonic Development of Southeast Asia --- I. Metcalfe: Pre-Cretaceous evolution of SE Asian terranes / Geological Society, London, Special Publications, 106:97-122, doi:10.1144/GSL.SP.1996.106.01.09 --- Gordon Packham: Cenozoic SE Asia: reconstructing its aggregation and reorganization / Geological Society, London, Special Publications, 106:123-152, doi:10.1144/GSL.SP.1996.106.01.10 --- Robert Hall: Reconstructing Cenozoic SE Asia / Geological Society, London, Special Publications, 106:153-184, doi:10.1144/GSL.SP.1996.106.01.11 --- T. O. Simandjuntak and A. J. Barber: Contrasting tectonic styles in the Neogene orogenic belts of Indonesia / Geological Society, London, Special Publications, 106:185-201, doi:10.1144/GSL.SP.1996.106.01.12 --- Bryan Richter and Michael Fuller: Palaeomagnetism of the Sibumasu and Indochina blocks: implications for the extrusion tectonic model / Geological Society, London, Special Publications, 106:203-224, doi:10.1144/GSL.SP.1996.106.01.13 --- Robert B. Stokes, Paul F. Lovatt Smith, and Ko Soumphonphakdy: Timing of the Shan-Thai-Indochina collision: new evidence from the Pak Lay Foldbelt of the Lao PDR / Geological Society, London, Special Publications, 106:225-232, doi:10.1144/GSL.SP.1996.106.01.14 --- Paul F. Lovatt Smith, Robert B. Stokes, Charlie Bristow, and Andrew Carter: Mid-Cretaceous inversion in the Northern Khorat Plateau of Lao PDR and Thailand / Geological Society, London, Special Publications, 106:233-247, doi:10.1144/GSL.SP.1996.106.01.15 --- Charles S. Hutchison: The ‘Rajang accretionary prism’ and ‘Lupar Line’ problem of Borneo / Geological Society, London, Special Publications, 106:247-261, doi:10.1144/GSL.SP.1996.106.01.16 --- Shariff A. K. Omang and A. J. Barber: Origin and tectonic significance of the metamorphic rocks associated with the Darvel Bay Ophiolite, Sabah, Malaysia / Geological Society, London, Special Publications, 106:263-279, doi:10.1144/GSL.SP.1996.106.01.17 --- Khalid Ngah, Mazlan Madon, and H. D. Tjia: Role of pre-Tertiary fractures in formation and development of the Malay and Penyu basins / Geological Society, London, Special Publications, 106:281-289, doi:10.1144/GSL.SP.1996.106.01.18 --- H. D. Tjia and K. K. Liew: Changes in tectonic stress field in northern Sunda Shelf basins / Geological Society, London, Special Publications, 106:291-306, doi:10.1144/GSL.SP.1996.106.01.19 --- Ben Clennell: Far-field and gravity tectonics in Miocene basins of Sabah, Malaysia / Geological Society, London, Special Publications, 106:307-320, doi:10.1144/GSL.SP.1996.106.01.20 --- W. J. McCourt, M. J. Crow, E. J. Cobbing, and T. C. Amin: Mesozoic and Cenozoic plutonic evolution of SE Asia: evidence from Sumatra, Indonesia / Geological Society, London, Special Publications, 106:321-335, doi:10.1144/GSL.SP.1996.106.01.21 --- M. A. Samuel and N. A. Harbury: The Mentawai fault zone and deformation of the Sumatran Forearc in the Nias area / Geological Society, London, Special Publications, 106:337-351, doi:10.1144/GSL.SP.1996.106.01.22 --- Koji Wakita, Jan Sopaheluwakan, Kazuhiro Miyazaki, Iskandar Zulkarnain, and Munasri: Tectonic evolution of the Bantimala Complex, South Sulawesi, Indonesia / Geological Society, London, Special Publications, 106:353-364, doi:10.1144/GSL.SP.1996.106.01.23 --- Moyra E. J. Wilson and Dan W. J. Bosence: The Tertiary evolution of South Sulawesi: a record in redeposited carbonates of the Tonasa Limestone Formation / Geological Society, London, Special Publications, 106:365-389, doi:10.1144/GSL.SP.1996.106.01.24 --- Steven C. Bergman, Dana Q. Coffield, James P. Talbot, and Richard A. Garrard: Tertiary Tectonic and magmatic evolution of western Sulawesi and the Makassar Strait, Indonesia: evidence for a Miocene continent-continent collision / Geological Society, London, Special Publications, 106:391-429, doi:10.1144/GSL.SP.1996.106.01.25 --- Jason R. Ali, John Milsom, Edward M. Finch, and Bundan Mubroto: SE Sundaland accretion: palaeomagnetic evidence of large Plio-Pleistocene thin-skin rotations in Buton / Geological Society, London, Special Publications, 106:431-443, doi:10.1144/GSL.SP.1996.106.01.26 --- P Z. Vroon, M. J. Van Bergen, and E. J. Forde: Pb and Nd isotope constraints on the provenance of tectonically dispersed continental fragments in east Indonesia / Geological Society, London, Special Publications, 106:445-453, doi:10.1144/GSL.SP.1996.106.01.27 --- Kees Linthout, Henk Helmers, Jan R. Wijbrans, and Jan Diederik A. M. Van Wees: 40Ar/39Ar constraints on obduction of the Seram ultramafic complex: consequences for the evolution of the southern Banda Sea / Geological Society, London, Special Publications, 106:455-464, doi:10.1144/GSL.SP.1996.106.01.28 --- Tim R. Charlton: Correlation of the Salawati and Tomori Basins, eastern Indonesia: a constraint on left-lateral displacements of the Sorong fault zone / Geological Society, London, Special Publications, 106:465-481, doi:10.1144/GSL.SP.1996.106.01.29 --- Jeffrey F. A. Malaihollo and Robert Hall: The geology and tectonic evolution of the Bacan region, east Indonesia / Geological Society, London, Special Publications, 106:483-497, doi:10.1144/GSL.SP.1996.106.01.30 --- Simon Baker and Jeffrey Malaihollo: Dating of Neogene igneous rocks in the Halmahera region: arc initiation and development / Geological Society, London, Special Publications, 106:499-509, doi:10.1144/GSL.SP.1996.106.01.31 --- M. Pubellier, R. Quebral, M. Aurelio, and C. Rangin: Docking and post-docking escape tectonics in the southern Philippines / Geological Society, London, Special Publications, 106:511-523, doi:10.1144/GSL.SP.1996.106.01.32 --- P. V. Crowhurst, K. C. Hill, D. A. Foster, and A. P. Bennett: Thermochronological and geochemical constraints on the tectonic evolution of northern Papua New Guinea / Geological Society, London, Special Publications, 106:525-537, doi:10.1144/GSL.SP.1996.106.01.33 --- Helmut Wopfner: Gondwana origin of the Baoshan and Tengchong terranes of west Yunnan / Geological Society, London, Special Publications, 106:539-547, doi:10.1144/GSL.SP.1996.106.01.34 --- Zuyi Zhou, Qiuyuan Lao, Huanjiang Chen, Sijiang Ding, and Zhongting Liao: Early Mesozoic orogeny in Fujian, southeast China / Geological Society, London, Special Publications, 106:549-556, doi:10.1144/GSL.SP.1996.106.01.35
    Pages: Online-Ressource (XIII, 566 Seiten) , Illustrationen, Diagramme, Karten
    ISBN: 1897799527
    Language: English
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  • 3
    Keywords: Mittelmeerraum ; Paläomagnetismus ; Tektonik ; Cenozoic ; Geodynamics ; Geologia estrutural ; Geology, Stratigraphic ; Geology, Structural ; Mediterranean Region ; Mesozoic ; Paleomagnetism ; Paleomagnetismo ; Plate tectonics
    Description / Table of Contents: A. Morris and D. H. Tarling: Palaeomagnetism and tectonics of the Mediterranean region: an introduction / Geological Society, London, Special Publications, 105:1-18, doi:10.1144/GSL.SP.1996.105.01.01 --- Western Mediterranean --- A. Kirker and E. McClelland: Application of net tectonic rotations and inclination analysis to a high-resolution palaeomagnetic study in the Betic Cordillera / Geological Society, London, Special Publications, 105:19-32, doi:10.1144/GSL.SP.1996.105.01.02 --- J. J. Villalaín, M. L. Osete, R. Vegas, V. García-Dueñas, and F. Heller: The Neogene remagnetization in the western Betics: a brief comment on the reliability of palaeomagnetic directions / Geological Society, London, Special Publications, 105:33-41, doi:10.1144/GSL.SP.1996.105.01.03 --- H. Feinberg, O. Saddiqi, and A. Michard: New constraints on the bending of the Gibraltar Arc from palaeomagnetism of the Ronda peridotites (Betic Cordilleras, Spain) / Geological Society, London, Special Publications, 105:43-52, doi:10.1144/GSL.SP.1996.105.01.04 --- D. Khattach, D. Najid, N. Hamoumi, and D. H. Tarling: Palaeomagnetic studies in Morocco: tectonic implications for the Meseta and Anti-Atlas since the Permian / Geological Society, London, Special Publications, 105:53-57, doi:10.1144/GSL.SP.1996.105.01.05 --- D. Rey, P. Turner, and A. Ramos: Palaeomagnetism and magnetostratigraphy of the Middle Triassic in the Iberian Ranges (Central Spain) / Geological Society, London, Special Publications, 105:59-82, doi:10.1144/GSL.SP.1996.105.01.06 --- M. T. Juárez, M. L. Osete, R. Vegas, C. G. Langereis, and G. Meléndez: Palaeomagnetic study of Jurassic limestones from the Iberian Range (Spain): tectonic implications / Geological Society, London, Special Publications, 105:83-90, doi:10.1144/GSL.SP.1996.105.01.07 --- M. Garcés, J. M. Parés, and L. Cabrera: Inclination error linked to sedimentary facies in Miocene detrital sequences from the Vallès-Penedès Basin (NE Spain) / Geological Society, London, Special Publications, 105:91-99, doi:10.1144/GSL.SP.1996.105.01.08 --- P. Keller and U. Gehring: Consequences of post-collisional deformation on the reconstruction of the East Pyrenees / Geological Society, London, Special Publications, 105:101-109, doi:10.1144/GSL.SP.1996.105.01.09 --- J. L. Pereira, A. Rapalini, D. H. Tarling, and J. Fonseca: Palaeomagnetic dating and determination of tectonic tilting: a study of Mesozoic-Cenozoic igneous rocks in central West Portugal / Geological Society, London, Special Publications, 105:111-117, doi:10.1144/GSL.SP.1996.105.01.10 --- Central Mediterranean and Carpathians --- J. E. T. Channell: Palaeomagnetism and palaeogeography of Adria / Geological Society, London, Special Publications, 105:119-132, doi:10.1144/GSL.SP.1996.105.01.11 --- M. Iorio, G. Nardi, D. Pierattini, and D. H. Tarling: Palaeomagnetic evidence of block rotations in the Matese Mountains, Southern Apennines, Italy / Geological Society, London, Special Publications, 105:133-139, doi:10.1144/GSL.SP.1996.105.01.12 --- M. Mattei, C. Kissel, L. Sagnotti, R. Funiciello, and C. Faccenna: Lack of Late Miocene to Present rotation in the Northern Tyrrhenian margin (Italy): a constraint on geodynamic evolution / Geological Society, London, Special Publications, 105:141-146, doi:10.1144/GSL.SP.1996.105.01.13 --- M. Fedi, G. Florio, and A. Rapolla: The pattern of crustal block rotations in the Italian region deduced from aeromagnetic anomalies / Geological Society, London, Special Publications, 105:147-152, doi:10.1144/GSL.SP.1996.105.01.14 --- Emő Márton and Péter Márton: Large scale rotations in North Hungary during the Neogene as indicated by palaeomagnetic data / Geological Society, London, Special Publications, 105:153-173, doi:10.1144/GSL.SP.1996.105.01.15 --- Miroslav Krs, Marta Krsová, and Petr Pruner: Palaeomagnetism and palaeogeography of the Western Carpathians from the Permian to the Neogene / Geological Society, London, Special Publications, 105:175-184, doi:10.1144/GSL.SP.1996.105.01.16 --- Václav Houša, Miroslav Krs, Marta Krsová, and Petr Pruner: Magnetostratigraphy of Jurassic-Cretaceous limestones in the Western Carpathians / Geological Society, London, Special Publications, 105:185-194, doi:10.1144/GSL.SP.1996.105.01.17 --- M. Iorio, D. H. Tarling, B. D’argenio, and G. Nardi: Ultra-fine magnetostratigraphy of Cretaceous shallow water carbonates, Monte Raggeto, southern Italy / Geological Society, London, Special Publications, 105:195-203, doi:10.1144/GSL.SP.1996.105.01.18 --- E. McClelland, B. Finegan, and R. W. H. Butler: A magnetostratigraphic study of the onset of the Mediterranean Messinian salility crisis; Caltanissetta Basin, Sicily / Geological Society, London, Special Publications, 105:205-217, doi:10.1144/GSL.SP.1996.105.01.19 --- F. Florindo and L. Sagnotti: Revised magnetostratigraphy and rock magnetism of Pliocene sediments from Valle Ricca (Rome, Italy) / Geological Society, London, Special Publications, 105:219-223, doi:10.1144/GSL.SP.1996.105.01.20 --- Giancarlo Scalera, Paolo Favali, and Fabio Florindo: Palaeomagnetic database: the effect of quality filtering for geodynamic studies / Geological Society, London, Special Publications, 105:225-237, doi:10.1144/GSL.SP.1996.105.01.21 --- Eastern Mediterranean --- A. H. F. Robertson, J. E. Dixon, S. Brown, A. Collins, A. Morris, E. Pickett, I. Sharp, and T. Ustaömer: Alternative tectonic models for the Late Palaeozoic-Early Tertiary development of Tethys in the Eastern Mediterranean region / Geological Society, London, Special Publications, 105:239-263, doi:10.1144/GSL.SP.1996.105.01.22 --- H. J. Mauritsch, R. Scholger, S. L. Bushati, and A. Xhomo: Palaeomagnetic investigations in Northern Albania and their significance for the geodynamic evolution of the Adriatic-Aegean realm / Geological Society, London, Special Publications, 105:265-275, doi:10.1144/GSL.SP.1996.105.01.23 --- D. Kondopoulou, A. Atzemoglou, and S. Pavlides: Palaeomagnetism as a tool for testing geodynamic models in the North Aegean: convergences, controversies and a further hypothesis / Geological Society, London, Special Publications, 105:277-288, doi:10.1144/GSL.SP.1996.105.01.24 --- H. Feinberg, B. Edel, D. Kondopoulou, and A. Michard: Implications of ophiolite palaeomagnetism for the interpretation of the geodynamics of Northern Greece / Geological Society, London, Special Publications, 105:289-298, doi:10.1144/GSL.SP.1996.105.01.25 --- J. D. A. Piper, Joanna M. Moore, O. Tatar, H. Gursoy, and R. G. Park: Palaeomagnetic study of crustal deformation across an intracontinental transform: the North Anatolian Fault Zone in Northern Turkey / Geological Society, London, Special Publications, 105:299-310, doi:10.1144/GSL.SP.1996.105.01.26 --- Antony Morris: A review of palaeomagnetic research in the Troodos ophiolite, Cyprus / Geological Society, London, Special Publications, 105:311-324, doi:10.1144/GSL.SP.1996.105.01.27 --- A. M. Kafafy, D. H. Tarling, M. M. El Gamili, H. H. Hamama, and E. H. Ibrahim: Palaeomagnetism of some Cretaceous Nubian Sandstones, Northern Sinai, Egypt / Geological Society, London, Special Publications, 105:325-332, doi:10.1144/GSL.SP.1996.105.01.28 --- A. L. Abdeldayem and D. H. Tarling: Palaeomagnetism of some Tertiary sedimentary rocks, southwest Sinai, Egypt, in the tectonic framework of the SE Mediterranean / Geological Society, London, Special Publications, 105:333-343, doi:10.1144/GSL.SP.1996.105.01.29 --- Applications in Volcanology --- Leon Bardot, Rick Thomas, and Elizabeth McClelland: Emplacement temperatures of pyroclastic deposits on Santorini deduced from palaeomagnetic measurements: constraints on eruption mechanisms / Geological Society, London, Special Publications, 105:345-357, doi:10.1144/GSL.SP.1996.105.01.30 --- Maurizio De’ Gennaro, Paola R. Gialanella, Alberto Incoronato, Giuseppe Mastrolorenzo, and Debora Naimo: Palaeomagnetic controls on the emplacement of the Neapolitan Yellow Tuff (Campi Flegrei, Southern Italy) / Geological Society, London, Special Publications, 105:359-365, doi:10.1144/GSL.SP.1996.105.01.31 --- Alberto Incoronato: Magnetic stratigraphy procedures in volcanic areas: the experience at Vesuvius / Geological Society, London, Special Publications, 105:367-371, doi:10.1144/GSL.SP.1996.105.01.32 --- Archaeomagnetism --- M. E. Evans: Archaeomagnetic results from the Mediterranean region: an overview / Geological Society, London, Special Publications, 105:373-384, doi:10.1144/GSL.SP.1996.105.01.33 --- P. Márton: Archaeomagnetic directions: the Hungarian calibration curve / Geological Society, London, Special Publications, 105:385-399, doi:10.1144/GSL.SP.1996.105.01.34 --- A. Morris: Glossary of basic palaeomagnetic and rock magnetic terms / Geological Society, London, Special Publications, 105:401-415, doi:10.1144/GSL.SP.1996.105.01.35
    Pages: Online-Ressource (422 Seiten) , Diagramme, Karten
    ISBN: 1897799551
    Language: English
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  • 4
    Keywords: Denudation ; Erosion ; Geodynamik ; Plattentektonik ; Rift ; Strukturgeologie ; Störung (Geologie) ; Subduktion ; Tektonik ; Erosion ; Erosão ; Failles (géologie) ; Falhas (geologia estrutural) ; Faults (Geology) ; Geodynamics ; Geology, Structural ; Intemperismo ; Plate tectonics ; Rochas metamórficas ; Rocks, Metamorphic ; Tectonique ; Érosion
    Description / Table of Contents: Uwe Ring, Mark T. Brandon, Sean D. Willett, and Gordon S. Lister: Exhumation processes / Geological Society, London, Special Publications, 154:1-27, doi:10.1144/GSL.SP.1999.154.01.01 --- Subduction-Related Accretionary Wedges (B-type Subduction) --- Richard L. Sedlock: Evaluation of exhumation mechanisms for coherent blueschists in western Baja California, Mexico / Geological Society, London, Special Publications, 154:29-54, doi:10.1144/GSL.SP.1999.154.01.02 --- Uwe Ring and Mark T. Brandon: Ductile deformation and mass loss in the Franciscan Subduction Complex: implications for exhumation processes in accretionary wedges / Geological Society, London, Special Publications, 154:55-86, doi:10.1144/GSL.SP.1999.154.01.03 --- Stuart N. Thomson, Bernhard Stöckhert, and Manfred R. Brix: Miocene high-pressure metamorphic rocks of Crete, Greece: rapid exhumation by buoyant escape / Geological Society, London, Special Publications, 154:87-107, doi:10.1144/GSL.SP.1999.154.01.04 --- T. J. Rawling and G. S. Lister: Oscillating modes of orogeny in the Southwest Pacific and the tectonic evolution of New Caledonia / Geological Society, London, Special Publications, 154:109-127, doi:10.1144/GSL.SP.1999.154.01.05 --- R. P. Wintsch, T. Byrne, and M. Toriumi: Exhumation of the Sanbagawa blueschist belt, SW Japan, by lateral flow and extrusion: evidence from structural kinematics and retrograde P-T-t paths / Geological Society, London, Special Publications, 154:129-155, doi:10.1144/GSL.SP.1999.154.01.06 --- Collisional Belts and Intra-Continental Convergence (A-type Subduction) --- Fritz Schlunegger and Sean Willett: Spatial and temporal variations in exhumation of the central Swiss Alps and implications for exhumation mechanisms / Geological Society, London, Special Publications, 154:157-179, doi:10.1144/GSL.SP.1999.154.01.07 --- Olivier Vanderhaeghe, Jean-Pierre Burg, and Christian Teyssier: Exhumation of migmatites in two collapsed orogens: Canadian Cordillera and French Variscides / Geological Society, London, Special Publications, 154:181-204, doi:10.1144/GSL.SP.1999.154.01.08 --- Andrew T. Calvert, Phillip B. Gans, and Jeffrey M. Amato: Diapiric ascent and cooling of a sillimanite gneiss dome revealed by 40Ar/39Ar thermochronology: the Kigluaik Mountains, Seward Peninsula, Alaska / Geological Society, London, Special Publications, 154:205-232, doi:10.1144/GSL.SP.1999.154.01.09 --- Allen F. Glazner: Exposure of deep, dense rocks: interplay between erosion and sinking / Geological Society, London, Special Publications, 154:233-239, doi:10.1144/GSL.SP.1999.154.01.10 --- J. McL. Miller, R. T. Gregory, D. R. Gray, and D. A. Foster: Geological and geochronological constraints on the exhumation of a high-pressure metamorphic terrane, Oman / Geological Society, London, Special Publications, 154:241-260, doi:10.1144/GSL.SP.1999.154.01.11 --- Geoffrey E. Batt, Barry P. Kohn, Jean Braun, Ian McDougall, and Trevor R. Ireland: New insight into the dynamic development of the Southern Alps, New Zealand, from detailed thermochronological investigation of the Mataketake Range pegmatites / Geological Society, London, Special Publications, 154:261-282, doi:10.1144/GSL.SP.1999.154.01.12 --- John I. Garver, Mark T. Brandon, Mary Roden-Tice, and Peter J. J. Kamp: Exhumation history of orogenic highlands determined by detrital fission-track thermochronology / Geological Society, London, Special Publications, 154:283-304, doi:10.1144/GSL.SP.1999.154.01.13 --- Lithospheric Extension: Divergent Plate Motions (Rifting) --- M. A. Forster and G. S. Lister: Detachment faults in the Aegean core complex of Ios, Cyclades, Greece / Geological Society, London, Special Publications, 154:305-323, doi:10.1144/GSL.SP.1999.154.01.14 --- Laurel B. Goodwin: Controls on pseudotachylyte formation during tectonic exhumation in the South Mountains metamorphic core complex, Arizona / Geological Society, London, Special Publications, 154:325-342, doi:10.1144/GSL.SP.1999.154.01.15 --- David A. Foster and Barbara E. John: Quantifying tectonic exhumation in an extensional orogen with thermochronology: examples from the southern Basin and Range Province / Geological Society, London, Special Publications, 154:343-364, doi:10.1144/GSL.SP.1999.154.01.16
    Pages: Online-Ressource (VI, 378 Seiten) , Illustrationen, Diagramme, Karten
    ISBN: 1862390320
    Language: English
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  • 5
    Keywords: Atlantischer Raum (Nord) ; Geologie ; Paläoozeanographie ; Sedimentation ; Tektonik ; Failles (Géologie) - Atlantique Nord, Région de l' ; Failles (Géologie) - Terre-Neuve-et-Labrador ; Geologia historica ; North Atlantic Region ; Paleoceanography ; Paléo-océanographie - Atlantique Nord, Région de l' ; Plate tectonics ; Sedimentation and deposition ; Sedimentologia ; Sédimentation (Géologie) - Atlantique Nord, Région de l' ; Tectonique des plaques - Atlantique Nord, Région de l'
    Description / Table of Contents: Neal W. Driscoll, John R. Hogg, Nicholas Christie-Blick, and Garry D. Karner: Extensional tectonics in the Jeanne d’Arc Basin, offshore Newfoundland: implications for the timing of break-up between Grand Banks and Iberia / Geological Society, London, Special Publications, 90:1-28, doi:10.1144/GSL.SP.1995.090.01.01 --- Iain K. Sinclair: Sequence stratigraphic response to Aptian-Albian rifting in conjugate margin basins: a comparison of the Jeanne d’Arc Basin, offshore Newfoundland, and the Porcupine Basin, offshore Ireland / Geological Society, London, Special Publications, 90:29-49, doi:10.1144/GSL.SP.1995.090.01.02 --- C. C. Ebdon, P. J. Granger, H. D. Johnson, and A. M. Evans: Early Tertiary evolution and sequence stratigraphy of the Faeroe-Shetland Basin: implications for hydrocarbon prospectivity / Geological Society, London, Special Publications, 90:51-69, doi:10.1144/GSL.SP.1995.090.01.03 --- G. Boillot, M. O. Beslier, C. M. Krawczyk, D. Rappin, and T. J. Reston: The formation of passive margins: constraints from the crustal structure and segmentation of the deep Galicia margin, Spain / Geological Society, London, Special Publications, 90:71-91, doi:10.1144/GSL.SP.1995.090.01.04 --- T. J. Reston, C. M. Krawczyk, and H.-J. Hoffmann: Detachment tectonics during Atlantic rifting: analysis and interpretation of the S reflection, the west Galicia margin / Geological Society, London, Special Publications, 90:93-109, doi:10.1144/GSL.SP.1995.090.01.05 --- Liselotte Kiørboe and Steen Agerlin Petersen: Seismic investigation of the Faeroe basalts and their substratum / Geological Society, London, Special Publications, 90:111-123, doi:10.1144/GSL.SP.1995.090.01.06 --- K. Vanneste, J.-P. Henriet, J. Posewang, and F. Theilen: Seismic stratigraphy of the Bill Bailey and Lousy Bank area: implications for subsidence history / Geological Society, London, Special Publications, 90:125-139, doi:10.1144/GSL.SP.1995.090.01.07 --- Morten Sparre Andersen and Lars Ole Boldreel: Effect of Eocene-Miocene Compression Structures on Bottom-Water Currents in the Faeroe-Rockall Area / Geological Society, London, Special Publications, 90:141-143, doi:10.1144/GSL.SP.1995.090.01.08 --- Lars Ole Boldreel and Morten Sparre Andersen: The relationship between the distribution of Tertiary sediments, tectonic processes and deep-water circulation around the Faeroe Islands / Geological Society, London, Special Publications, 90:145-158, doi:10.1144/GSL.SP.1995.090.01.09 --- M. S. Stoker: The influence of glacigenic sedimentation on slope-apron development on the continental margin off Northwest Britain / Geological Society, London, Special Publications, 90:159-177, doi:10.1144/GSL.SP.1995.090.01.10 --- Regin Waagstein and Claus Heilmann-Clausen: Petrography and biostratigraphy of Palaeogene volcaniclastic sediments dredged from the Faeroes shelf / Geological Society, London, Special Publications, 90:179-197, doi:10.1144/GSL.SP.1995.090.01.11 --- E. J. W. Jones, S. C. Cande, and F. Spathopoulos: Evolution of a major oceanographic pathway: the equatorial atlantic / Geological Society, London, Special Publications, 90:199-213, doi:10.1144/GSL.SP.1995.090.01.12 --- Morten Sparre Andersen and Lars Ole Boldreel: Tertiary compression structures in the Faeroe-Rockall area / Geological Society, London, Special Publications, 90:215-216, doi:10.1144/GSL.SP.1995.090.01.13 --- Simon K. Haslett: Pliocene-Pleistocene radiolarian biostratigraphy and palaeoceanography of the North Atlantic / Geological Society, London, Special Publications, 90:217-225, doi:10.1144/GSL.SP.1995.090.01.14 --- John B. Hunt, Nigel G. T. Fannin, Peter G. Hill, and J. Douglas Peacock: The tephrochronology and radiocarbon dating of North Atlantic, Late-Quaternary sediments: an example from the St. Kilda Basin / Geological Society, London, Special Publications, 90:227-248, doi:10.1144/GSL.SP.1995.090.01.15 --- K. Thomson and R. R. Hillis: Tertiary structuration and erosion of the Inner Moray Firth / Geological Society, London, Special Publications, 90:249-269, doi:10.1144/GSL.SP.1995.090.01.16 --- C. N. Wold: Palaeobathymetric reconstruction on a gridded database: the northern North Atlantic and southern Greenland-Iceland-Norwegian sea / Geological Society, London, Special Publications, 90:271-302, doi:10.1144/GSL.SP.1995.090.01.17
    Pages: Online-Ressource (309 Seiten) , Illustrationen, Diagramme, Karten
    ISBN: 1897799276
    Language: English
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  • 6
    Unknown
    London : The Geological Society
    Keywords: Archaikum (Geologie) ; Präkambrium ; Archaean ; Geology, Stratigraphic ; Geology, Structural ; Plate tectonics ; Précambrien ; Stratigraphie - Précambrien ; Tectonique des plaques
    Description / Table of Contents: Maarten J. De Wit and Andrew Hynes: The onset of interaction between the hydrosphere and oceanic crust, and the origin of the first continental lithosphere / Geological Society, London, Special Publications, 95:1-9, doi:10.1144/GSL.SP.1995.095.01.01 --- Kenneth A. Eriksson: Crustal growth, surface processes, and atmospheric evolution on the early Earth / Geological Society, London, Special Publications, 95:11-25, doi:10.1144/GSL.SP.1995.095.01.02 --- E. G. Nisbet: Archaean ecology: a review of evidence for the early development of bacterial biomes, and speculations on the development of a global-scale biosphere / Geological Society, London, Special Publications, 95:27-51, doi:10.1144/GSL.SP.1995.095.01.03 --- R. M. Shackleton: Tectonic evolution of greenstone belts / Geological Society, London, Special Publications, 95:53-65, doi:10.1144/GSL.SP.1995.095.01.04 --- P. Choukroune, H. Bouhallier, and N. T. Arndt: Soft lithosphere during periods of Archaean crustal growth or crustal reworking / Geological Society, London, Special Publications, 95:67-86, doi:10.1144/GSL.SP.1995.095.01.05 --- Peter J. Treloar and Tom G. Blenkinsop: Archaean deformation patterns in Zimbabwe: true indicators of Tibetan-style crustal extrusion or not? / Geological Society, London, Special Publications, 95:87-107, doi:10.1144/GSL.SP.1995.095.01.06 --- James F. Wilson, Robert W. Nesbitt, and C. Mark Fanning: Zircon geochronology of Archaean felsic sequences in the Zimbabwe craton: a revision of greenstone stratigraphy and a model for crustal growth / Geological Society, London, Special Publications, 95:109-126, doi:10.1144/GSL.SP.1995.095.01.07 --- Alec F. Trendall: Paradigms for the Pilbara / Geological Society, London, Special Publications, 95:127-142, doi:10.1144/GSL.SP.1995.095.01.08 --- John S. Myers: The generation and assembly of an Archaean supercontinent: evidence from the Yilgarn craton, Western Australia / Geological Society, London, Special Publications, 95:143-154, doi:10.1144/GSL.SP.1995.095.01.09 --- D. I. Groves, J. R. Ridley, E. M. J. Bloem, M. Gebre-Mariam, S. G. Hagemann, J. M. A. Hronsky, J. T. Knight, N. J. McNaughton, J. Ojala, R. M. Vielreicher, T. C. McCuaig, and P. W. Holyland: Lode-gold deposits of the Yilgarn block: products of Late Archaean crustal-scale overpressured hydrothermal systems / Geological Society, London, Special Publications, 95:155-172, doi:10.1144/GSL.SP.1995.095.01.10 --- R. J. Herrington: Late Archaean structure and gold mineralization in the Kadoma region of the Midlands greenstone belt, Zimbabwe / Geological Society, London, Special Publications, 95:173-191, doi:10.1144/GSL.SP.1995.095.01.11 --- David Bridgwater, Flemming Mengel, Brian Fryer, Paul Wagner, and Søren Claudius Hansen: Early Proterozoic mafic dykes in the North Atlantic and Baltic cratons: field setting and chemistry of distinctive dyke swarms / Geological Society, London, Special Publications, 95:193-210, doi:10.1144/GSL.SP.1995.095.01.12 --- R. G. Park: Palaeoproterozoic Laurentia-Baltica relationships: a view from the Lewisian / Geological Society, London, Special Publications, 95:211-224, doi:10.1144/GSL.SP.1995.095.01.13 --- Timothy James Wynn: Deformation in the mid to lower continental crust: analogues from Proterozoic shear zones in NW Scotland / Geological Society, London, Special Publications, 95:225-241, doi:10.1144/GSL.SP.1995.095.01.14 --- Mike P. Coward, Richard M. Spencer, and Camille E. Spencer: Development of the Witwatersrand Basin, South Africa / Geological Society, London, Special Publications, 95:243-269, doi:10.1144/GSL.SP.1995.095.01.15 --- R. H. Graham: Asian analogues for Precambrian tectonics? / Geological Society, London, Special Publications, 95:271-289, doi:10.1144/GSL.SP.1995.095.01.16
    Pages: Online-Ressource (VIII, 295 Seiten) , Illustrationen, Diagramme, Karten
    ISBN: 1897799365
    Language: English
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  • 7
    facet.materialart.
    Unknown
    In:  Journal of Atmospheric and Solar-Terrestrial Physics
    Publication Date: 2020-02-12
    Keywords: 550 - Earth sciences
    Language: English
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  • 8
    facet.materialart.
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    In:  The Climate in Historical Times : Towards a Synthesis of Holocene Proxy Data and Climate Models | GKSS School of Environmental Research
    Publication Date: 2020-02-12
    Description: Trees, as long living plants, are governed by environmental and/or climate changes within their habitat. Their growth rings record to a large extent the temporal dynamics of these changes either directly or through tree physiological reactions. They render the highest time resolution thus far possible for environmental or climate reconstructions of the past 10,000 years (exactly dated, annually resolved, see: [828], [994]). Trees are a substantial part of the human environment with a high socio-economic value. Their large geographical extension over various regions of the world, including those with greatest population densities but also marginal areas allows to gain unique informations about local and regional consequences of global climate change.
    Keywords: 550 - Earth sciences
    Language: English
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  • 9
    Publication Date: 2020-02-12
    Description: Late Miocene to Quaternary volcanic rocks from the frontal arc to the back-arc region of the Central Volcanic Zone in the Andes show a wide range of δ11B values (+4 to −7 ‰) and boron concentrations (6 to 60 ppm). Positive δ11B values of samples from the volcanic front indicate involvement of a 11B-enriched slab component, most likely derived from altered oceanic crust, despite the thick Andean continental lithosphere, and rule out a pure crust-mantle origin for these lavas. The δ11B values and boron concentrations in the lavas decrease with increasing depth of the Wadati-Benioff Zone. This across-arc variation in δ11B values and decreasing B/Nb ratios from the arc to the back-arc samples are attributed to the combined effects of boron-isotope fractionation during progressive dehydration in the slab and a steady decrease in slab-fluid flux toward the back arc, coupled with a relatively constant degree of crustal contamination as indicated by similar Sr, Nd and Pb isotope ratios in all samples. Three-component mixing calculations for slab-derived fluid, the mantle wedge and the continental crust based on B, Sr and Nd isotope data indicate that the slab-fluid component dominates the boron composition of the fertile mantle and that the primary arc magmas were contaminated by an average addition of 15 to 30% crustal material. Modeling of fluid-mineral boron-isotope fractionation as a function of temperature shows that dehydration reactions liberate continuously changing fluid compositions from the slab during progressive subduction. A combination of a boron-isotope fractionation model and a temperature model for the Central Andean subduction zone fits the across-arc variation in δ11B and we conclude that the boron-isotope composition of arc volcanic rocks, especially in island arcs, is dominated by changing δ11B-composition of boron-rich slab-fluids during progressive dehydration. Owing to the decrease in slab-derived fluid flux crustal contamination becomes more important toward the back-arc. Because of the boron-isotope fractionation effect, across-arc variations in δ11B need not necessarily reflect different mixing proportions between boron derived from the slab-fluid and the mantle wedge.
    Keywords: 550 - Earth sciences
    Language: English
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  • 10
    Publication Date: 2020-02-12
    Keywords: 550 - Earth sciences
    Language: English
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  • 11
    Publication Date: 2020-02-12
    Keywords: 550 - Earth sciences
    Language: English
    Type: info:eu-repo/semantics/report
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  • 12
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    GeoForschungsZentrum
    In:  Scientific Technical Report
    Publication Date: 2020-02-12
    Description: Seismological models of upper mantle structure provide important constraints on the Earth"s convection system. Resolving the details of the upper mantle discontinuities is important for modelling the composition of the mantle and for understanding the effect that the discontinuities may have on mantle convection. Recently, numerous permanent and temporary seismic stations and networks have been set up around the world. It is possible to get the seismic records for the research needs from data management systems like IRIS, GEOFON, GEOSCOPE, FREESIA, etc. The use of seismograms collected from a large number of stations and earthquakes around the world enable us to study the global and the regional structure of the Earth. In this work, the receiver function technique (e.g. Owens et. Al., 1995) is applied to study the upper mantle structure in the northwest Pacific subduction zone and in the Hawaiian hotspot area. In the northwest Pacific, the Pacific plate is subducted into the upper mantle to more than 600 km depth, indicated by seismicity. In Hawaii, the volcanic edifice of the Hawaiian Islands and seamounts are believed to result from the passage of the oceanic lithosphere over a stationary mantle hotspot (Wilson, 1963; Morgan, 1971; Morgan et. al., 1995). In both regions the upper mantle structure is affected by the cold and warm materials, respectively. To study the extension of the temperature anomaly is important for understanding the Earth"s convection system. The olivine component of the mantle material is intensively studied in laboratories (e.g. Ito and Takahashi, 1989; Irifune, 1987). With increasing temperature and pressure, the olivine crystal undergoes a series of phase transformations which will result in a variation of the seismic structure. The effect of the temperature anomaly on the main upper mantle discontinuities will be discussed in chapter 2. Recently, the receiver function technique is increasingly applied to investigate the upper mantle discontinuities. To isolate the upper mantle conversion phases, newly developed moveout correction and migration methods are applied to separately distributed seismic stations as well as station arrays. The receiver function method used in this study will be introduced in chapter 3. In chapter 4 and 5, receiver function studies in the area of the northwest Pacific subduction zone and the Hawaiian mantle plume are presented. Regional tectonic background and the previous seismological works in these two areas will be first introduced in each chapter, and followed by description of data, processing steps, results and interpretations. In chapter 6, I will summarize the observations of the 410 and 660 topography in the northwest Pacific subduction zone and in the area around the Hawaiian mantle plume.
    Keywords: 550 - Earth sciences
    Language: English
    Type: info:eu-repo/semantics/doctoralThesis
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  • 13
    Publication Date: 2020-02-12
    Description: The volcanism responsible for creating the chain of the Hawaiian islands and seamounts is believed to mark the passage of the oceanic lithosphere over a mantle plume1,2. In this picture hot material rises from great depth within a fixed narrow conduit to the surface, penetrating the moving lithosphere3. Although a number of models describe possible plume–lithosphere interactions4, seismic imaging techniques have not had sufficient resolution to distinguish between them. Here we apply the S-wave ‘receiver function’ technique to data of three permanent seismic broadband stations on the Hawaiian islands, to map the thickness of the underlying lithosphere. We find that under Big Island the lithosphere is 100–110 km thick, as expected for an oceanic plate 90–100 million years old that is not modified by a plume. But the lithosphere thins gradually along the island chain to about 50–60 km below Kauai. The width of the thinning is about 300 km. In this zone, well within the larger-scale topographic swell, we infer that the rejuvenation model5 (where the plume thins the lithosphere) is operative; however, the largerscale topographic swell is probably supported dynamically.
    Keywords: 550 - Earth sciences
    Language: English
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  • 14
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    Unknown
    In:  Journal of Structural Chemistry
    Publication Date: 2020-02-12
    Keywords: 550 - Earth sciences
    Language: English
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  • 15
    Publication Date: 2020-02-12
    Keywords: 550 - Earth sciences
    Language: English
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  • 16
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    In:  Global Gravity Field and Its Temporal Variations | International Association of Geodesy Symposia
    Publication Date: 2020-02-12
    Description: In sequence of the GFZ93 high resolution gravity models (Gruber Th., et al, 1993) a new model, named GFZ95A, which is complete to degree and order 360 of a spherical harmonic series was computed. The model is based on new data sets, which were collected during the last months. This new data promises a major step towards a more precise high resolution gravity model. Especially from new available data over CIS (Community of Independent States) major progress can be expected with respect to the former models, which were based on predicted data in this area.
    Keywords: 550 - Earth sciences
    Language: English
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  • 17
    Publication Date: 2020-02-12
    Description: During the TOR-1 passive seismic experiment in 1996/97, a maximum of 139 temporary seismograph stations were operating over the Sorgenfrei-Tornquist Zone (STZ) in an area extending from northern Germany through Denmark to central Sweden. One of the objectives was to study horizontal anisotropy directions in the subcrustal lithosphere and asthenosphere across the Trans-European Suture Zone. To achieve this goal,broad-band and intermediate-period (5 s) data of the TOR-1 stations and additional stations of permanent networks (GRSN, GEOFON) were analysed for splitting of SKS and SKKS phases. As a result of the relatively dense station spacing, the method offers good lateral resolution of anisotropy.Preliminary results suggest that the directions of the fast horizontal S wave velocity are affected by the STZ. In central Europe and southern Sweden, far away from the STZ, fast S wave directions are approximately E-W while they turn more northerly closer to the STZ where they are approximately parallel to the trend of the STZ. No significant shear wave splitting was observed north of 57 degr. N and east of 14 degr. E. Small delay times between 0.2 and 0.5 s observed at the northernmost TOR-1 station T40S and T60S may be controlled by anisotropy in a thickened crust. The mantle contribution of horizontal anisotropy within the STZ is probably constrained to an approximately 60-km-thick zone in the depth range between 70 and 300 km. The observations are consistent with a model where azimuthally anisotropy is not governed by present-day mantle flow in the asthenosphere, but rather is frozen into the subcrustal lithosphere during the last episode of tectonic activity.
    Keywords: 550 - Earth sciences
    Language: English
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  • 18
    Publication Date: 2020-02-12
    Description: Noise measurements were carried out at 381 sites in the Cologne area (Germany) using both short period and broad band sensors. The large number of data allowed both assesment of the influence of different sensors in the site response estimation and to compare the widely used H/V technique with the recently proposed Fourier Phase Spectral Method (FPSM). The results show that short period sensors are able to reliably retrieve site effects at frequencies well below their corner frequencies. Moreover, the H/V method should be preferred to the FPSM in determining the fundamental resonance frequency of soils. Finally, a map showing the resonance frequency distribution in the studied area was drawn using the results obtained applying the H/V technique.
    Keywords: 550 - Earth sciences
    Language: English
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  • 19
    Publication Date: 2020-02-12
    Keywords: 550 - Earth sciences
    Language: German , English
    Type: info:eu-repo/semantics/other
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  • 20
    Publication Date: 2020-02-12
    Description: Two passive seismic experiments have been carried out across the Trans European Suture Zone (TESZ) from northern Germany to southern Sweden (TOR) and across the Proterozoic-Archaean suture in Finland (SVEKALAPKO) to improve our understanding of the processes involved in the creation of the European continent. Teleseismic earthquakes recorded by the studies of the crust-mantle, and upper mantle seismic discontinuities with the receiver function method. Along the TOR network the depth to the Moho increases from 30 km at the southern edge of the profile to 40 km at the Elbe Line. Between the Elbe Line and TESZ the Moho branches off and whereas the deeper branch continues at 40 km depth to the TESZ a second branch appears at 30.35 km depth. The upper branch descends north of the TESZ to below 55 km under the northern end of the TOR profile. The crustal thickening north of the TESZ is accompanied by an increase in average Vp/Vs values, appearance of intracrustal conversion zones and north dipping features which we interpret as remnants of the subduction and subsequent collision between Avalonia and Baltica. In southern Finland beneath the SVEKALAPKO network the Moho starts in the south at the depth of 40-45 km, plunges to about 65 km depth south of the Archaean-Proterozoic suture. This deepening of the Moho is coincident with a north dipping intracrustal structure apparently related to the subduction and collision and of the Proterozoic and Archaean provinces in Proterozoic. North of the line of the suture the Moho rises smoothly to 45-50 km depth in the Archaean province. Along the TOR profile, 410 and 660 discontinuities were hard to detect. However, manyfold stacking of receiver functions revealed that the conversions from the two discontinuities arrive more or less accordingto IASP91 predicted time. Across the SVEKALAPKO network 410 and 660 discontinuities arrive markedly earlier than IASP91 theoretical arrival times. In particular north of the Archaean-Proterozoic suture in Finland the 410 and 660 km conversions arrive about 2s earlier, indicating about 5 per cent higher average upper mantle velocities and lower temperatures than what IASP91 global model predicts. Test
    Keywords: 550 - Earth sciences
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  • 21
    Publication Date: 2020-02-12
    Keywords: 550 - Earth sciences
    Language: English
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  • 22
    Publication Date: 2020-02-12
    Description: The GLATIS project (Greenland Lithosphere Analysed Teleseismically on the Ice Sheet) with collaborators has operated a total of 16 temporary broadband seismographs for periods from 3 months to 2 years distributed over much of Greenland from late 1999 to the present. The very first results are presented in this paper, where receiver-function analysis has been used to map the depth to Moho in a large region where crustal thicknesses were previously completely unknown. The results suggest that the Proterozoic part of central Greenland consists of two distinct blocks with different depths to Moho. North of the Archean core in southern Greenland is a zone of very thick Proterozoic crust with an average depth to Moho close to 48 km. Further to the north the Proterozoic crust thins to 37–42 km. We suggest that the boundary between thick and thin crust forms the boundary between the geologically defined Nagssugtoqidian and Rinkian mobile belts, which thus can be viewed as two blocks, based on the large difference in depth to Moho (over 6 km). Depth to Moho on the Archean crust is around 40 km. Four of the stations are placed in the interior of Greenland on the ice sheet, where we find the data quality excellent, but receiver-function analyses are complicated by strong converted phases generated at the base of the ice sheet, which in some places is more than 3 km thick.
    Keywords: 550 - Earth sciences
    Language: English
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  • 23
    Publication Date: 2020-02-12
    Description: The main structures of the mid-European lithosphere, crossing Europe from the Iberian peninsula to the Bohemian Massif, are predominantly formed by the Variscan orogeny. To investigate the anisotropy of the mantle at the transition zone between the two Variscan units, the Saxothuringicum and the Moldanubicum, we carried out a field experiment in SE Germany in 1995-1996: 23 mobile broad-band stations were installed for 6 months in the Vogtland-Oberpfalz-Bavarian Forest area. The station profile crossed the suture zone of the Saxothuringicum and Moldanubicum near the KTB borehole (German Continental Deep Drilling Program). With a mean station spacing of about 10 km? we intended to obtain a high lateral resolution of the anisotropy parameters and to resolve possible changes when passing the suture zone. The analysis of the observed birefringence of SKS phases shows E-W directions for the fast polarization. Therefore, the directions deviate only slightly from the strike of the Hercynian mountain belt and from the direction of the absolute plate motion in that region. Indications for the transition zone come from a rotation of the fast polarization direction from 86 degrees +/- 13 degrees in the northern part of the profile (Saxothuringicum) to 110 degrees +/- 15 degrees in the southern part (Moldanubicum) as well as from strong variations of the splitting parameters with respect to the azimuths of the incoming waves in the middle of the profile. We interpret these variations as an expression of a complex mantle structure formed either by several anisotropic layers with inclined symmetry axes in at least one layer or by a model consisting of inhomogeneous anisotropic layers. A comparison of the azimuthal variations of the splitting parameters in the middle of the profile with those observed at the Grafenberg station GRAl-situated in the central part of the transition zone approximately 100 km to the west-shows remarkable differences, which may reflect lateral variations in the direction and inclination of the symmetry axes in the transition zone even on a small scale. Both observations-the change in the fast polarization direction from the northern to the southern part as well as the variations with respect to different azimuths in the middle of the profile-suggest that the transition zone between the Saxothuringicum and the Moldanubicum continues down into the upper mantle.
    Keywords: 550 - Earth sciences
    Language: English
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  • 24
    Publication Date: 2020-02-12
    Description: Oxygen-isotope ratios of precipitation (δ18OP) inferred from deep-lake ostracods from the Ammersee (southern Germany) provide a climate record with decadal resolution. The record in detail shows many of the rapid climate shifts seen in central Greenland ice cores between 15,000 and 5000 years before the present (B.P.). Negative excursions in the estimated δ18OP from both of these records likely reflect short weakenings of the thermohaline circulation caused by episodic discharges of continental freshwater into the North Atlantic. Deviating millennial-scale trends, however, indicate that climate gradients between Europe and Greenland changed systematically, reflecting a gradual rearrangement of North Atlantic circulation during deglaciation.
    Keywords: 550 - Earth sciences
    Language: English
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  • 25
    Publication Date: 2022-11-14
    Keywords: 550 - Earth sciences
    Language: German , English
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  • 26
    Publication Date: 2020-02-12
    Description: The new GFZ/GRGS gravity field models GRIM5-S1 and Cl, current initial models for the CHAMP mission, have been compared with other recent models (JGM 3, EGM 96) for radial accuracy (by means of latitude lumped coefficients) in computations on altimetry satellite orbits. The basis for accuracy judgements are extensive (multi-year) averages of crossover sea height differences from Geosat and ERS 1/2 missions. These data are fully independent of the data used to develop these gravity models. We tested how well these observed differences in all the world's oceans agree with projections of the same errors from the scaled covariance matrix of their harmonic geopotential coefficients. It was found that the tentative (model) scale factor of 5 for the formal standard deviations of the harmonic coefficients of the new GRIM fields is justified, i.e. the accuracy estimates, provided together with the geopotential coefficients, are realistic.
    Keywords: 550 - Earth sciences
    Language: English
    Type: info:eu-repo/semantics/report
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  • 27
    Publication Date: 2020-02-12
    Keywords: 550 - Earth sciences
    Language: English
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  • 28
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    GeoForschungsZentrum GFZ
    In:  Scientific Technical Report STR
    Publication Date: 2020-02-12
    Keywords: 550 - Earth sciences
    Language: English
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  • 29
    Publication Date: 2020-02-12
    Description: SKS and SKKS shear waves recorded on the INDEPTH III seismic array deployed in central Tibet during 1998 - 1999 have been analysed for the direction and extent of seismic polarization anisotropy. The 400-km-long NNW trending array extended south to north, from the central Lhasa terrane, across the Karakoram-Jiali fault system and Banggong-Nujiang suture to the central Qiangtang terrane. Substantial splitting with delay times from 1 to 2 s, and fast directions varying from E-W to NE-SW, was observed for stations in the Qiangtang trerrane and northernmost Lhasa terrane. No detectable splitting was observed for stations located farther south in the central Lahsa terrane. The change in shear wave splitting characteristics occurs at 32°N, approximately coincident with the transcurrent Karakoram-Jiali fault system but ~40 km south of the surface trace of the Banggong-Nujiang suture. This location is also near the southernmost edge of a region of high Sn attenuation and low upper mantle velocities found in previous studies. The transition between no measured splitting and strong anisotropy (2.2 s delay time) is exceptionally sharp (=15 km), suggesting a large crustal contribution to the measured splitting. The E-W to NE-SW fast directions are broadly similar to the fast directions observed farther east along the Yadong-Golmud highway, suggesting that no large-scale change in anisotropic properties occurs in the east-west direction. However, in detail, fast directions and delay times vary over lateral distances of ~100 km in both the N-S and E-W direction by as much as 40° and 0.5-1 s, respectively. The onset of measurable splitting at 32° N most likely marks the northern limit of the underthrusting Indian lithosphere, which is characterized by negligible polarization anisotropy. Taken in conjunction with decades of geophysical and geological observations in Tibet, the new anisotropy measurements are consistent with a model where hot and weak upper mantle beneath northern Tibet is being squeezed and sheared between the advancing Indian lithosphere to the south and the Tsaidam and Tarim Lithospheres to the north and west, resulting in eastward flow and possibly thickening and subsequent detachment due to gravitational instability. In northern Tibet, crustal deformation clearly follows this large-scale deformation pattern.
    Keywords: 550 - Earth sciences
    Language: English
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  • 30
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    Centre Européen de Géodynamique et de Séismologie
    In:  Cahiers du Centre Européen de Géodynamique et de Séismologie
    Publication Date: 2020-02-12
    Keywords: 550 - Earth sciences
    Language: English
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  • 31
    Publication Date: 2020-02-12
    Description: This technical report has been initiated, compiled and edited until March 1994. Its objective was to collect the existing geoscientific database and state of the art on the Uralides. It serves as a platform for financial and operational decisions by national and international funding agencies on the URSEIS95-project (Urals Reflection Seismic Experiment and Integrated Studies) under the EUROPROBE umbrella. The German DEKORP2000 (GFZ Potsdam), funded by BMBF, decided to operate this project in June 1994. Until November 1994, the COCORP project (Cornell University, U.S.A), funded by NSF, and CICYT (Barcelona, Spain) got funding to join a western consortium on the operation ofURSEIS in 1995. Until the end of 1994, a Russian consortium, funded by ROSGEOLCOM, was built under the leadership of SPETSGEOFISIKA (Moscow), integrating the BAZHENOV Geophysical Expedition (Sheelite, Ekaterinburg), BASHNEFTEGEOFISIKA (Ufa) and the GEON institute (Moscow). All partners in the project join forces in financing, acquisition, processing, interpretation and publishing the results of the seismic experiment. The field parameters of the experiment (chapter VI) have been slightly modified in the meantime and include the Vibroseis source technique. The field campaign is scheduled for May-September 1995. The interdisciplinary studies (chapter Vll) have been approved by the E.C. in the frame of the INTAS-programme (International Association for the Promotion of Cooperation with Scientists from the Independent States of the Former Soviet Union). in October 1994 and started their operational phase.
    Keywords: 550 - Earth sciences
    Language: English
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  • 32
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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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