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  • 1
    Keywords: Seismische Stratigraphie ; Seismotektonik ; Stratigraphie ; Tektonik ; Estratigrafia ; Geologia estrutural ; Geology, Stratigraphic ; Geology, Structural ; Rocks, Sedimentary ; Sequence stratigraphy
    Description / Table of Contents: G. D. Williams: Tectonics and seismic sequence stratigraphy: an introduction / Geological Society, London, Special Publications, 71:1-13, doi:10.1144/GSL.SP.1993.071.01.01 --- J. A. Cartwright, R. C. Haddock, and L. M. Pinheiro: The lateral extent of sequence boundaries / Geological Society, London, Special Publications, 71:15-34, doi:10.1144/GSL.SP.1993.071.01.02 --- Sarah Prosser: Rift-related linked depositional systems and their seismic expression / Geological Society, London, Special Publications, 71:35-66, doi:10.1144/GSL.SP.1993.071.01.03 --- David Waltham, Stuart Hardy, and Abdulnaser Abousetta: Sediment geometries and domino faulting / Geological Society, London, Special Publications, 71:67-85, doi:10.1144/GSL.SP.1993.071.01.04 --- Alan M. Roberts, Graham Yielding, and Michael E. Badley: Tectonic and bathymetric controls on stratigraphic sequences within evolving half-graben / Geological Society, London, Special Publications, 71:87-121, doi:10.1144/GSL.SP.1993.071.01.05 --- Aidan M. Joy: Comments on the pattern of post-rift subsidence in the Central and Northern North Sea Basin / Geological Society, London, Special Publications, 71:123-140, doi:10.1144/GSL.SP.1993.071.01.06 --- W. G. Higgs and K. R. McClay: Analogue sandbox modelling of Miocene extensional faulting in the Outer Moray Firth / Geological Society, London, Special Publications, 71:141-162, doi:10.1144/GSL.SP.1993.071.01.07 --- M. P. R. Light, M. P. Maslanyj, R. J. Greenwood, and N. L. Banks: Seismic sequence stratigraphy and tectonics offshore Namibia / Geological Society, London, Special Publications, 71:163-191, doi:10.1144/GSL.SP.1993.071.01.08 --- Joachim Deramond, Pierre Souquet, Marie-José Fondecave-Wallez, and Martin Specht: Relationships between thrust tectonics and sequence stratigraphy surfaces in foredeeps: model and examples from the Pyrenees (Cretaceous-Eocene, France, Spain) / Geological Society, London, Special Publications, 71:193-219, doi:10.1144/GSL.SP.1993.071.01.09
    Pages: Online-Ressource (226 Seiten) , Illustrationen, Diagramme, Karten
    ISBN: 0903317877
    Language: English
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  • 2
    Unknown
    London : The Geological Society
    Keywords: Geology, Structural ; Himalaya Mountains Region ; Plate tectonics ; Orogeny ; Himalaja ; Tektonik ; Asia, Central ; Mountains
    Description / Table of Contents: M. P. Searle and P. J. Treloar: Himalayan Tectonics — an introduction / Geological Society, London, Special Publications, 74:1-7, doi:10.1144/GSL.SP.1993.074.01.01 --- Karakoram and Afghanistan --- Alessandro Caporali: Recent gravity measurements in the Karakoram / Geological Society, London, Special Publications, 74:9-20, doi:10.1144/GSL.SP.1993.074.01.02 --- Andrea Zanchi: Structural evolution of the North Karakoram cover, North Pakistan / Geological Society, London, Special Publications, 74:21-38, doi:10.1144/GSL.SP.1993.074.01.03 --- Maurizio Gaetani, Flavio Jadoul, Elisabetta Erba, and Eduardo Garzanti: Jurassic and Cretaceous orogenic events in the North Karakoram: age constraints from sedimentary rocks / Geological Society, London, Special Publications, 74:39-52, doi:10.1144/GSL.SP.1993.074.01.04 --- M. B. Crawford and M. P. Searle: Collision-related granitoid magmatism and crustal structure of the Hunza Karakoram, North Pakistan / Geological Society, London, Special Publications, 74:53-68, doi:10.1144/GSL.SP.1993.074.01.05 --- Peter J. Treloar and Christopher N. Izatt: Tectonics of the Himalayan collision between the Indian Plate and the Afghan Block: a synthesis / Geological Society, London, Special Publications, 74:69-87, doi:10.1144/GSL.SP.1993.074.01.06 --- North and West Pakistan --- Zulfiqar Ahmed: Leucocratic rocks from the Bela ophiolite, Khuzdar District, Pakistan / Geological Society, London, Special Publications, 74:89-100, doi:10.1144/GSL.SP.1993.074.01.07 --- Mohammad Arif and M. Qasim Jan: Chemistry of chromite and associated phases from the Shangla ultramafic body in the Indus suture zone of Pakistan / Geological Society, London, Special Publications, 74:101-112, doi:10.1144/GSL.SP.1993.074.01.08 --- M. Qasim Jan, M. Asif Khan, and M. Sufyan Qazi: The Sapat mafic-ultramafic complex, Kohistan arc, North Pakistan / Geological Society, London, Special Publications, 74:113-121, doi:10.1144/GSL.SP.1993.074.01.09 --- M. Asif Khan, M. Qasim Jan, and B. L. Weaver: Evolution of the lower arc crust in Kohistan, N. Pakistan: temporal arc magmatism through early, mature and intra-arc rift stages / Geological Society, London, Special Publications, 74:123-138, doi:10.1144/GSL.SP.1993.074.01.10 --- M. A. Sullivan, B. F. Windley, A. D. Saunders, J. R. Haynes, and D. C. Rex: A palaeogeographic reconstruction of the Dir Group: evidence for magmatic arc migration within Kohistan, N. Pakistan / Geological Society, London, Special Publications, 74:139-160, doi:10.1144/GSL.SP.1993.074.01.11 --- Ugo Pognante, Piera Benna, and Patrick Le Fort: High-pressure metamorphism in the High Himalayan Crystallines of the Stak valley, northeastern Nanga Parbat-Haramosh syntaxis, Pakistan Himalaya / Geological Society, London, Special Publications, 74:161-172, doi:10.1144/GSL.SP.1993.074.01.12 --- Mark T. George, Nigel B. W. Harris, and Robert W. H. Butler: The tectonic implications of contrasting granite magmatism between the Kohistan island arc and the Nanga Parbat-Haramosh Massif, Pakistan Himalaya / Geological Society, London, Special Publications, 74:173-191, doi:10.1144/GSL.SP.1993.074.01.13 --- V. S. Cronin, G. J. Schurter, and K. A. Sverdrup: Preliminary Landsat lineament analysis of the northern Nanga Parbat-Haramosh Massif, northwest Himalaya / Geological Society, London, Special Publications, 74:193-206, doi:10.1144/GSL.SP.1993.074.01.14 --- Joseph A. Dipietro, Kevin R. Pogue, Robert D. Lawrence, Mirza S. Baig, Ahmad Hussain, and Irshad Ahmad: Stratigraphy south of the Main Mantle Thrust, Lower Swat, Pakistan / Geological Society, London, Special Publications, 74:207-220, doi:10.1144/GSL.SP.1993.074.01.15 --- Antonio Greco and David A. Spencer: A section through the Indian Plate, Kaghan Valley, NW Himalaya, Pakistan / Geological Society, London, Special Publications, 74:221-236, doi:10.1144/GSL.SP.1993.074.01.16 --- Tethyan Himalaya --- J. C. Vannay and L. Spring: Geochemistry of the continental basalts within the Tethyan Himalaya of Lahul-Spiti and SE Zanskar, northwest India / Geological Society, London, Special Publications, 74:237-249, doi:10.1144/GSL.SP.1993.074.01.17 --- L. Spring, F. Bussy, J.-C. Vannay, S. Huon, and M. A. Cosca: Early Permian granitic dykes of alkaline affinity in the Indian High Himalaya of Upper Lahul and SE Zanskar: geochemical characterization and geotectonic implications / Geological Society, London, Special Publications, 74:251-264, doi:10.1144/GSL.SP.1993.074.01.18 --- A. Steck, L. Spring, J.-C. Vannay, H. Masson, H. Bucher, E. Stutz, R. Marchant, and J.-C. Tieche: The tectonic evolution of the Northwestern Himalaya in eastern Ladakh and Lahul, India / Geological Society, London, Special Publications, 74:265-276, doi:10.1144/GSL.SP.1993.074.01.19 --- Eduardo Garzanti: Sedimentary evolution and drowning of a passive margin shelf (Giumal Group; Zanskar Tethys Himalaya, India): palaeoenvironmental changes during final break-up of Gondwanaland / Geological Society, London, Special Publications, 74:277-298, doi:10.1144/GSL.SP.1993.074.01.20 --- Alastair H. F. Robertson and Paul J. Degnan: Sedimentology and tectonic implications of the Lamayuru Complex: deep-water facies of the Indian passive margin, Indus Suture Zone, Ladakh Himalaya / Geological Society, London, Special Publications, 74:299-321, doi:10.1144/GSL.SP.1993.074.01.21 --- High Himalaya --- Ugo Pognante and Piera Benna: Metamorphic zonation, migmatization and leucogranites along the Everest transect of Eastern Nepal and Tibet: record of an exhumation history / Geological Society, London, Special Publications, 74:323-340, doi:10.1144/GSL.SP.1993.074.01.22 --- Bruno Lombardo, Piero Pertusati, and Sandro Borghi: Geology and tectonomagmatic evolution of the eastern Himalaya along the Chomolungma-Makalu transect / Geological Society, London, Special Publications, 74:341-355, doi:10.1144/GSL.SP.1993.074.01.23 --- Christian Schneider and Ludwig Masch: The metamorphism of the Tibetan Series from the Manang area, Marsyandi Valley, Central Nepal / Geological Society, London, Special Publications, 74:357-374, doi:10.1144/GSL.SP.1993.074.01.24 --- Steven M. Reddy, Michael P. Searle, and John A. Massey: Structural evolution of the High Himalayan Gneiss sequence, Langtang Valley, Nepal / Geological Society, London, Special Publications, 74:375-389, doi:10.1144/GSL.SP.1993.074.01.25 --- Nigel Harris, John Massey, and Simon Inger: The role of fluids in the formation of High Himalayan leucogranites / Geological Society, London, Special Publications, 74:391-400, doi:10.1144/GSL.SP.1993.074.01.26 --- Philip England and Peter Molnar: Cause and effect among thrust and normal faulting, anatectic melting and exhumation in the Himalaya / Geological Society, London, Special Publications, 74:401-411, doi:10.1144/GSL.SP.1993.074.01.27 --- S. Guillot, A. Pêcher, P. Rochette, and P. Le Fort: The emplacement of the Manaslu granite of Central Nepal: field and magnetic susceptibility constraints / Geological Society, London, Special Publications, 74:413-428, doi:10.1144/GSL.SP.1993.074.01.28 --- M. P. Searle, R. P. Metcalfe, A. J. Rex, and M. J. Norry: Field relations, petrogenesis and emplacement of the Bhagirathi leucogranite, Garhwal Himalaya / Geological Society, London, Special Publications, 74:429-444, doi:10.1144/GSL.SP.1993.074.01.29 --- R. C. Patel, Sandeep Singh, A. Asokan, R. M. Manickavasagam, and A. K. Jain: Extensional tectonics in the Himalayan orogen, Zanskar, NW India / Geological Society, London, Special Publications, 74:445-459, doi:10.1144/GSL.SP.1993.074.01.30 --- Richard L. Brown and Jeffrey H. Nazarchuk: Annapurna detachment fault in the Greater Himalaya of central Nepal / Geological Society, London, Special Publications, 74:461-473, doi:10.1144/GSL.SP.1993.074.01.31 --- Main Central Thrust Zone --- Bernhard Grasemann: Numerical modelling of the thermal history of the NW Himalayas, Kullu Valley, India / Geological Society, London, Special Publications, 74:475-484, doi:10.1144/GSL.SP.1993.074.01.32 --- R. P. Metcalfe: Pressure, temperature and time constraints on metamorphism across the Main Central Thrust zone and High Himalayan Slab in the Garhwal Himalaya / Geological Society, London, Special Publications, 74:485-509, doi:10.1144/GSL.SP.1993.074.01.33 --- K. Meier and E. Hiltner: Deformation and metamorphism within the Main Central Thrust zone, Arun Tectonic Window, eastern Nepal / Geological Society, London, Special Publications, 74:511-523, doi:10.1144/GSL.SP.1993.074.01.34 --- C. W. K. Morrison and G. J. H. Oliver: A study of illite crystallinity and fluid inclusions in the Kathmandu Klippe and the Main Central Thrust zone, Nepal / Geological Society, London, Special Publications, 74:525-540, doi:10.1144/GSL.SP.1993.074.01.35 --- Main Bioundary Thrust, Lesser Himalaya and Beyond --- Yanina Najman, Peter Clift, Michael R. W. Johnson, and Alastair H. F. Robertson: Early stages of foreland basin evolution in the Lesser Himalaya, N India / Geological Society, London, Special Publications, 74:541-558, doi:10.1144/GSL.SP.1993.074.01.36 --- David A. Pivnik and William J. Sercombe: Compression- and transpression-related deformation in the Kohat Plateau, NW Pakistan / Geological Society, London, Special Publications, 74:559-580, doi:10.1144/GSL.SP.1993.074.01.37 --- James W. McDougall, Ahmad Hussain, and Robert S. Yeats: The Main Boundary Thrust and propagation of deformation into the foreland fold-and-thrust belt in northern Pakistan near the Indus River / Geological Society, London, Special Publications, 74:581-588, doi:10.1144/GSL.SP.1993.074.01.38 --- I. A. K. Jadoon, R. D. Lawrence, and R. J. Lillie: Evolution of foreland structures: an example from the Sulaiman thrust lobe of Pakistan, southwest of the Himalayas / Geological Society, London, Special Publications, 74:589-602, doi:10.1144/GSL.SP.1993.074.01.39 --- Christian France-Lanord, Louis Derry, and Annie Michard: Evolution of the Himalaya since Miocene time: isotopic and sedimentological evidence from the Bengal Fan / Geological Society, London, Special Publications, 74:603-621, doi:10.1144/GSL.SP.1993.074.01.40
    Pages: Online-Ressource (VII, 630 Seiten) , Illustrationen, Diagramme, Karten
    ISBN: 0903317923
    Language: English
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  • 3
    Keywords: Entstehung ; Erdgaslagerstätte ; Erdöllagerstätte ; Großbritannien ; Kongress ; Kongreß ; Nordsee ; Tektonik ; Geology -- North Sea ; Petroleum -- Geology -- North Sea ; Petroleum -- Geology -- England
    Description / Table of Contents: M. P. Coward: The Precambrian, Caledonian and Variscan framework to NW Europe / Geological Society, London, Special Publications, 55:1-34, doi:10.1144/GSL.SP.1990.055.01.01 --- Philip H. Heckel: Evidence for global (glacial-eustatic) control over upper Carboniferous (Pennsylvanian) cyclothems in midcontinent North America / Geological Society, London, Special Publications, 55:35-47, doi:10.1144/GSL.SP.1990.055.01.02 --- A. J. Fraser and R. L. Gawthorpe: Tectono-stratigraphic development and hydrocarbon habitat of the Carboniferous in northern England / Geological Society, London, Special Publications, 55:49-86, doi:10.1144/GSL.SP.1990.055.01.03 --- Michael R. Leeder and Martin Hardman: Carboniferous geology of the Southern North Sea Basin and controls on hydrocarbon prospectivity / Geological Society, London, Special Publications, 55:87-105, doi:10.1144/GSL.SP.1990.055.01.04 --- Finn Surlyk: Timing, style and sedimentary evolution of Late Palaeozoic-Mesozoic extensional basins of East Greenland / Geological Society, London, Special Publications, 55:107-125, doi:10.1144/GSL.SP.1990.055.01.05 --- K. W. Glennie: Rotliegend sediment distribution: a result of late Carboniferous movements / Geological Society, London, Special Publications, 55:127-138, doi:10.1144/GSL.SP.1990.055.01.06 --- R. Steel and A. Ryseth: The Triassic — early Jurassic succession in the northern North Sea: megasequence stratigraphy and intra-Triassic tectonics / Geological Society, London, Special Publications, 55:139-168, doi:10.1144/GSL.SP.1990.055.01.07 --- B. M. Cox: A review of Jurassic chronostratigraphy and age indicators for the UK / Geological Society, London, Special Publications, 55:169-190, doi:10.1144/GSL.SP.1990.055.01.08 --- Philip C. Richards: The early to mid-Jurassic evolution of the northern North Sea / Geological Society, London, Special Publications, 55:191-205, doi:10.1144/GSL.SP.1990.055.01.09 --- David M. Latin, John E. Dixon, Nicky White, and J. Godfrey Fitton: Mesozoic magmatic activity in the North Sea Basin: implications for stretching history / Geological Society, London, Special Publications, 55:207-227, doi:10.1144/GSL.SP.1990.055.01.10 --- Alan M. Roberts, John D. Price, and Terkel Svava Olsen: Late Jurassic half-graben control on the siting and structure of hydrocarbon accumulations: UK/Norwegian Central Graben / Geological Society, London, Special Publications, 55:229-257, doi:10.1144/GSL.SP.1990.055.01.11 --- S. A. R. Boldy and S. Brealey: Timing, nature and sedimentary result of Jurassic tectonism in the Outer Moray Firth / Geological Society, London, Special Publications, 55:259-279, doi:10.1144/GSL.SP.1990.055.01.12 --- A. M. Spencer and V. B. Larsen: Fault traps in the Northern North Sea / Geological Society, London, Special Publications, 55:281-298, doi:10.1144/GSL.SP.1990.055.01.13 --- D. O’Driscoll, A. D. Hindle, and D. C. Long: The structural controls on Upper Jurassic and Lower Cretaceous reservoir sandstones in the Witch Ground Graben, UK North Sea / Geological Society, London, Special Publications, 55:299-323, doi:10.1144/GSL.SP.1990.055.01.14 --- Hans Bisewski: Occurrence and depositional environment of the Lower Cretaceous sands in the southern Witch Ground Graben / Geological Society, London, Special Publications, 55:325-338, doi:10.1144/GSL.SP.1990.055.01.15 --- N. J. Milton, G. T. Bertram, and I. R. Vann: Early Palaeogene tectonics and sedimentation in the Central North Sea / Geological Society, London, Special Publications, 55:339-351, doi:10.1144/GSL.SP.1990.055.01.16 --- A. W. Harding, T. J. Humphrey, A. Latham, M. K. Lunsford, and M. H. Strider: Controls on Eocene submarine fan deposition in the Witch Ground Graben / Geological Society, London, Special Publications, 55:353-367, doi:10.1144/GSL.SP.1990.055.01.17 --- Richard K. Morgan: Cenozoic subsidence and uplift in the North Sea region: Implications for mechanisms of basin formation / Geological Society, London, Special Publications, 55:369, doi:10.1144/GSL.SP.1990.055.01.18 --- Malcolm Butler and Christopher P. Pullan: Tertiary structures and hydrocarbon entrapment in the Weald Basin of southern England / Geological Society, London, Special Publications, 55:371-391, doi:10.1144/GSL.SP.1990.055.01.19 --- B. van Hoorn: Tectonic events responsible for Britain’s oil and gas reserves: a summary / Geological Society, London, Special Publications, 55:393-395, doi:10.1144/GSL.SP.1990.055.01.20
    Pages: Online-Ressource (404 Seiten) , Illustrationen, Diagramme, Karten
    ISBN: 0903317559
    Language: English
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  • 4
    Keywords: Geologie ; Oman ; Tektonik ; Geologia Da Asia ; Geology ; Oman Region ; Plate tectonics
    Description / Table of Contents: A. H. F. Robertson, M. P. Searle, and A. C. Ries: Introduction / Geological Society, London, Special Publications, 49:xi-xviii, doi:10.1144/GSL.SP.1992.049.01.01 --- Evolution of the Oman Tethyan Continental Margin --- A. H. F. Robertson and M. P. Searle: The northern Oman Tethyan continental margin: stratigraphy, structure, concepts and controversies / Geological Society, London, Special Publications, 49:3-25, doi:10.1144/GSL.SP.1992.049.01.02 --- W. Blendinger, A. van Vliet, and M. W. Hughes Clarke: Updoming, rifting and continental margin development during the Late Palaeozoic in northern Oman / Geological Society, London, Special Publications, 49:27-37, doi:10.1144/GSL.SP.1992.049.01.03 --- C. W. Lee: A review of platform sedimentation in the Early and Late Permian of Oman, with particular reference to the Oman Mountains / Geological Society, London, Special Publications, 49:39-47, doi:10.1144/GSL.SP.1992.049.01.04 --- D. Rabu, J. Le Metour, F. Bechennec, M. Beurrier, M. Villey, and C. Bourdillon-Jeudy de Grissac: Sedimentary aspects of the Eo-Alpine cycle on the northeast edge of the Arabian Platform (Oman Mountains) / Geological Society, London, Special Publications, 49:49-68, doi:10.1144/GSL.SP.1992.049.01.05 --- Brian R. Pratt and John D. Smewing: Jurassic and Early Cretaceous platform margin configuration and evolution, central Oman Mountains / Geological Society, London, Special Publications, 49:69-88, doi:10.1144/GSL.SP.1992.049.01.06 --- R. W. Scott: Chronostratigraphy of the Cretaceous carbonate shelf, southeastern Arabia / Geological Society, London, Special Publications, 49:89-108, doi:10.1144/GSL.SP.1992.049.01.07 --- E. A. Haan, S. G. Corbin, M. W. Hughes Clarke, and J. E. Mabillard: The Lower Kahmah Group of Oman: the carbonate fill of a marginal shelf basin / Geological Society, London, Special Publications, 49:109-125, doi:10.1144/GSL.SP.1992.049.01.08 --- P. D. Wagner: Geochemical stratigraphy and porosity controls in Cretaceous carbonates near the Oman Mountains / Geological Society, London, Special Publications, 49:127-137, doi:10.1144/GSL.SP.1992.049.01.09 --- K. F. Watts: Mesozoic carbonate slope facies marking the Arabian platform margin in Oman: depositional history, morphology and palaeogeography / Geological Society, London, Special Publications, 49:139-159, doi:10.1144/GSL.SP.1992.049.01.10 --- D. J. W. Cooper: Sedimentary evolution and palaeogeographical reconstruction of the Mesozoic continental rise in Oman: evidence from the Hamrat Duru Group / Geological Society, London, Special Publications, 49:161-187, doi:10.1144/GSL.SP.1992.049.01.11 --- D. Bernoulli, H. Weissert, and C. D. Blome: Evolution of the Triassic Hawasina Basin, Central Oman Mountains / Geological Society, London, Special Publications, 49:189-202, doi:10.1144/GSL.SP.1992.049.01.12 --- E. T. Tozer and T. J. Calon: Triassic ammonoids from Jabal Safra and Wadi Alwa, Oman, and their significance / Geological Society, London, Special Publications, 49:203-211, doi:10.1144/GSL.SP.1992.049.01.13 --- F. Bechennec, J. Le Metour, D. Rabu, Ch. Bourdillon-de-Grissac, P. de Wever, M. Beurrier, and M. Villey: The Hawasina Nappes: stratigraphy, palaeogeography and structural evolution of a fragment of the south-Tethyan passive continental margin / Geological Society, London, Special Publications, 49:213-223, doi:10.1144/GSL.SP.1992.049.01.14 --- P. De Weaver, Ch. Bourdillon-de Grissac, and F. Bechennec: Permian to Cretaceous radiolarian biostratigraphic data from the Hawasina Complex, Oman Mountains / Geological Society, London, Special Publications, 49:225-238, doi:10.1144/GSL.SP.1992.049.01.15 --- W. Kickmaier and Tj. Peters: Manganese occurrences in the Al Hammah Range — Wahrah Formation, Oman Mountains / Geological Society, London, Special Publications, 49:239-249, doi:10.1144/GSL.SP.1992.049.01.16 --- A. H. F. Robertson, C. D. Blome, D. W. J. Cooper, A. E. S. Kemp, and P. Searle: Evolution of the Arabian continental margin in the Dibba Zone, Northern Oman Mountains / Geological Society, London, Special Publications, 49:251-284, doi:10.1144/GSL.SP.1992.049.01.17 --- A. H. F. Robertson, A. E. S. Kemp, D. C. Rex, and C. D. Blome: Sedimentary and structural evolution of a continental margin transform lineament: the Hatta Zone, Northern Oman Mountains / Geological Society, London, Special Publications, 49:285-305, doi:10.1144/GSL.SP.1992.049.01.18 --- A. Mann and S. S. Hanna: The tectonic evolution of pre-Permian rocks, Central and Southeastern Oman Mountains / Geological Society, London, Special Publications, 49:307-325, doi:10.1144/GSL.SP.1992.049.01.19 --- J. Le Métour, D. Rabu, M. Tegyey, F. Béchennec, M. Beurrier, and M. Villey: Subduction and obduction: two stages in the Eo-Alpine tectonometamorphic evolution of the Oman Mountains / Geological Society, London, Special Publications, 49:327-339, doi:10.1144/GSL.SP.1992.049.01.20 --- Samir S. Hanna: The Alpine deformation of the Central Oman Mountains / Geological Society, London, Special Publications, 49:341-359, doi:10.1144/GSL.SP.1992.049.01.21 --- M. P. Searle, D. J. W. Cooper, and K. F. Watts: Structure of the Jebel Sumeini-Jebel Ghawil area, Northern Oman / Geological Society, London, Special Publications, 49:361-374, doi:10.1144/GSL.SP.1992.049.01.22 --- L. A. Dunne, P. R. Manoogian, and D. F. Pierini: Structural style and domains of the Northern Oman Mountains (Oman and United Arab Emirates) / Geological Society, London, Special Publications, 49:375-386, doi:10.1144/GSL.SP.1992.049.01.23 --- P. L. Michaelis and R. J. Pauken: Seismic interpretation of the structure and stratigraphy of the Strait of Hormuz / Geological Society, London, Special Publications, 49:387-395, doi:10.1144/GSL.SP.1992.049.01.24 --- D. R. D. Boote, D. Mou, and R. I. Waite: Structural evolution of the Suneinah Foreland, Central Oman Mountains / Geological Society, London, Special Publications, 49:397-418, doi:10.1144/GSL.SP.1992.049.01.25 --- J. Warburton, T. J. Burnhill, R. H. Graham, and K. P. Isaac: The evolution of the Oman Mountains Foreland Basin / Geological Society, London, Special Publications, 49:419-427, doi:10.1144/GSL.SP.1992.049.01.26 --- P. A. Cawood, F. K. Green, and T. J. Calon: Origin of culminations within the Southeast Oman Mountains at Jebel Ma-jhool and Ibra Dome / Geological Society, London, Special Publications, 49:429-445, doi:10.1144/GSL.SP.1992.049.01.27 --- D. Q. Coffield: Structures associated with nappe emplacement and culmination collapse in the Central Oman Mountains / Geological Society, London, Special Publications, 49:447-458, doi:10.1144/GSL.SP.1992.049.01.28 --- A. W. Shelton: The interpretation of gravity data in Oman: constraints on the ophiolite emplacement mechanism / Geological Society, London, Special Publications, 49:459-471, doi:10.1144/GSL.SP.1992.049.01.29 --- A. K. El-Shazly and R. G. Coleman: Metamorphism in the Oman Mountains in relation to the Semail ophiolite emplacement / Geological Society, London, Special Publications, 49:473-493, doi:10.1144/GSL.SP.1992.049.01.30 --- S. C. Nolan, P. W. Skelton, B. P. Clissold, and J. D. Smewing: Maastrichtian to early Tertiary stratigraphy and palaeogeography of the Central and Northern Oman Mountains / Geological Society, London, Special Publications, 49:495-519, doi:10.1144/GSL.SP.1992.049.01.31 --- P. W. Skelton, S. C. Nolan, and R. W. Scott: The Maastrichtian transgression onto the northwestern flank of the Proto-Oman Mountains: sequences of rudist-bearing beach to open shelf facies / Geological Society, London, Special Publications, 49:521-547, doi:10.1144/GSL.SP.1992.049.01.32 --- A. Mann, S. S. Hanna, S. C. Nolan, A. Mann, and S. S. Hanna: The post-Campanian tectonic evolution of the Central Oman Mountains: Tertiary extension of the Eastern Arabian Margin / Geological Society, London, Special Publications, 49:549-563, doi:10.1144/GSL.SP.1992.049.01.33 --- J. Maizels and C. McBean: Cenozoic alluvial fan systems of interior Oman: palaeoenvironmental reconstruction based on discrimination of palaeochannels using remotely sensed data / Geological Society, London, Special Publications, 49:565-582, doi:10.1144/GSL.SP.1992.049.01.34 --- Geology and Tectonics of South Oman --- I. G. Gass, A. C. Ries, R. M. Shackleton, and J. D. Smewing: Tectonics, geochronology and geochemistry of the Precambrian rocks of Oman / Geological Society, London, Special Publications, 49:585-599, doi:10.1144/GSL.SP.1992.049.01.35 --- V. P. Wright, A. C. Ries, and S. G. Munn: Intraplatformal basin-fill deposits from the Infracambrian Huqf Group, east Central Oman / Geological Society, London, Special Publications, 49:601-616, doi:10.1144/GSL.SP.1992.049.01.36 --- B. W. Mattes and S. Conway Morris: Carbonate/evaporite deposition in the Late Precambrian — Early Cambrian Ara Formation of Southern Oman / Geological Society, London, Special Publications, 49:617-636, doi:10.1144/GSL.SP.1992.049.01.37 --- A. P. Heward: Salt removal and sedimentation in Southern Oman / Geological Society, London, Special Publications, 49:637-651, doi:10.1144/GSL.SP.1992.049.01.38 --- A. C. Ries and R. M. Shackleton: Structures in the Huqf-Haushi Uplift, east Central Oman / Geological Society, London, Special Publications, 49:653-663, doi:10.1144/GSL.SP.1992.049.01.39 --- F. Moseley: The structure of Masirah Island, Oman / Geological Society, London, Special Publications, 49:665-671, doi:10.1144/GSL.SP.1992.049.01.40 --- R. M. Shackleton, A. C. Ries, P. R. Bird, J. B. Filbrandt, C. W. Lee, and G. C. Cunningham: The Batain Melange of NE Oman / Geological Society, London, Special Publications, 49:673-696, doi:10.1144/GSL.SP.1992.049.01.41 --- J. B. Filbrandt, S. C. Nolan, and A. C. Ries: Late Cretaceous and early Tertiary evolution of Jebel Ja’alan and adjacent areas, NE Oman / Geological Society, London, Special Publications, 49:697-714, doi:10.1144/GSL.SP.1992.049.01.42 --- R. M. Shackleton and A. C. Ries: Tectonics of the Masirah Fault Zone and eastern Oman / Geological Society, London, Special Publications, 49:715-724, doi:10.1144/GSL.SP.1992.049.01.43 --- G. S. Mountain and W. L. Prell: A multiphase plate tectonic history of the southeast continental margin of Oman / Geological Society, London, Special Publications, 49:725-743, doi:10.1144/GSL.SP.1992.049.01.44 --- Warren L. Prell and shipboard party of ODP Leg 117: Neogene tectonics and sedimentation of the SE Oman continental margin: results from ODP Leg 117 / Geological Society, London, Special Publications, 49:745-758, doi:10.1144/GSL.SP.1992.049.01.45 --- G. B. Shimmield, N. B. Price, and T. F. Pedersen: The influence of hydrography, bathymetry and productivity on sediment type and composition of the Oman Margin and in the Northwest Arabian Sea / Geological Society, London, Special Publications, 49:759-769, doi:10.1144/GSL.SP.1992.049.01.46 --- Regional Tectonic Setting --- K. W. Glennie, M. W. Hughes Clarke, M. G. A. Boeuf, W. F. H. Pilaar, and B. M. Reinhardt: Inter-relationship of Makran-Oman Mountains belts of convergence / Geological Society, London, Special Publications, 49:773-786, doi:10.1144/GSL.SP.1992.049.01.47 --- R. Stoneley: The Arabian continental margin in Iran during the Late Cretaceous / Geological Society, London, Special Publications, 49:787-795, doi:10.1144/GSL.SP.1992.049.01.48 --- A. M. C. Şengör: A new model for the late Palaeozoic—Mesozoic tectonic evolution of Iran and implications for Oman / Geological Society, London, Special Publications, 49:797-831, doi:10.1144/GSL.SP.1992.049.01.49
    Pages: Online-Ressource (XVIII, 845 Seiten) , Illustrationen, Diagramme, Karten
    ISBN: 090331746X
    Language: English
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  • 5
    Keywords: Felsmechanik ; Deformation ; Gebirgsmechanik ; Gestein ; Rheologie ; Tektonik
    Description / Table of Contents: Role of Fluids in Rock Deformation --- N. L. Carter, A. K. Kronenberg, J. V. Ross, and D. V. Wiltschko: Control of fluids on deformation of rocks / Geological Society, London, Special Publications, 54:1-13, doi:10.1144/GSL.SP.1990.054.01.01 --- Richard H. Sibson: Conditions for fault-valve behaviour / Geological Society, London, Special Publications, 54:15-28, doi:10.1144/GSL.SP.1990.054.01.02 --- James P. Evans: Textures, deformation mechanisms, and the role of fluids in the cataclastic deformation of granitic rocks / Geological Society, London, Special Publications, 54:29-39, doi:10.1144/GSL.SP.1990.054.01.03 --- Fracture and Faulting --- Susan M. Agar: Fracture evolution in the upper ocean crust: evidence from DSDP hole 504B / Geological Society, London, Special Publications, 54:41-50, doi:10.1144/GSL.SP.1990.054.01.04 --- Martin Casey and Gilles Wust: The calculation of bulk rheologies of structured materials and its application to brittle failure in shear / Geological Society, London, Special Publications, 54:51-55, doi:10.1144/GSL.SP.1990.054.01.05 --- S. J. D. Cox and L. Paterson: Damage development during rupture of heterogeneous brittle materials: a numerical study / Geological Society, London, Special Publications, 54:57-62, doi:10.1144/GSL.SP.1990.054.01.06 --- S. J. D. Cox: Velocity-dependent friction in a large direct shear experiment on gabbro / Geological Society, London, Special Publications, 54:63-70, doi:10.1144/GSL.SP.1990.054.01.07 --- Susan J. Hippler and Robert J. Knipe: The evolution of cataclastic fault rocks from a pre-existing mylonite / Geological Society, London, Special Publications, 54:71-79, doi:10.1144/GSL.SP.1990.054.01.08 --- Ian G. Main, Philip G. Meredith, Peter R. Sammonds, and Colin Jones: Influence of fractal flaw distributions on rock deformation in the brittle field / Geological Society, London, Special Publications, 54:81-96, doi:10.1144/GSL.SP.1990.054.01.09 --- G. Zulauf, G. Kleinschmidt, and O. Oncken: Brittle deformation and graphitic cataclasites in the pilot research well KTB-VB (Oberpfalz, FRG) / Geological Society, London, Special Publications, 54:97-103, doi:10.1144/GSL.SP.1990.054.01.10 --- Iain S. Stewart and Paul L. Hancock: Brecciation and fracturing within neotectonic normal fault zones in the Aegean region / Geological Society, London, Special Publications, 54:105-110, doi:10.1144/GSL.SP.1990.054.01.11 --- Teng-Fong Wong: Mechanical compaction and the brittle—ductile transition in porous sandstones / Geological Society, London, Special Publications, 54:111-122, doi:10.1144/GSL.SP.1990.054.01.12 --- Instabilities and Localization --- Russell K. Davies and Raymond C. Fletcher: Shear bands in a plastic layer at yield under combined shortening and shear: a model for the fault array in a duplex / Geological Society, London, Special Publications, 54:123-131, doi:10.1144/GSL.SP.1990.054.01.13 --- H. W. Green II and P. C. Burnley: The failure mechanism for deep-focus earthquakes / Geological Society, London, Special Publications, 54:133-141, doi:10.1144/GSL.SP.1990.054.01.14 --- B. E. Hobbs, H.-B. Mühlhaus, and A. Ord: Instability, softening and localization of deformation / Geological Society, London, Special Publications, 54:143-165, doi:10.1144/GSL.SP.1990.054.01.15 --- Eva M. Klaper: Reaction-enhanced formation of eclogite-facies shear zones in granulite-facies anorthosites / Geological Society, London, Special Publications, 54:167-173, doi:10.1144/GSL.SP.1990.054.01.16 --- David L. Olgaard: The role of second phase in localizing deformation / Geological Society, London, Special Publications, 54:175-181, doi:10.1144/GSL.SP.1990.054.01.17 --- A. Ord: Mechanical controls on dilatant shear zones / Geological Society, London, Special Publications, 54:183-192, doi:10.1144/GSL.SP.1990.054.01.18 --- E. Carrio-Schaffhauser, S. Raynaud, H. J. Latière, and F. Mazerolle: Propagation and localization of stylolites in limestones / Geological Society, London, Special Publications, 54:193-199, doi:10.1144/GSL.SP.1990.054.01.19 --- Flow Mechanisms and Flow Laws --- R. C. M. W. Franssen and C. J. Spiers: Deformation of polycrystalline salt in compression and in shear at 250–350°C / Geological Society, London, Special Publications, 54:201-213, doi:10.1144/GSL.SP.1990.054.01.20 --- C. J. Spiers, P. M. T. M. Schutjens, R. H. Brzesowsky, C. J. Peach, J. L. Liezenberg, and H. J. Zwart: Experimental determination of constitutive parameters governing creep of rocksalt by pressure solution / Geological Society, London, Special Publications, 54:215-227, doi:10.1144/GSL.SP.1990.054.01.21 --- Jane A. Gilotti and Joseph M. Hull: Phenomenological superplasticity in rocks / Geological Society, London, Special Publications, 54:229-240, doi:10.1144/GSL.SP.1990.054.01.22 --- Martin Burkhard: Ductile deformation mechanisms in micritic limestones naturally deformed at low temperatures (150–350°C) / Geological Society, London, Special Publications, 54:241-257, doi:10.1144/GSL.SP.1990.054.01.23 --- A. N. Walker, E. H. Rutter, and K. H. Brodie: Experimental study of grain-size sensitive flow of synthetic, hot-pressed calcite rocks / Geological Society, London, Special Publications, 54:259-284, doi:10.1144/GSL.SP.1990.054.01.24 --- J. H. P. De Bresser and C. J. Spiers: High-temperature deformation of calcite single crystals by r+ and f+ slip / Geological Society, London, Special Publications, 54:285-298, doi:10.1144/GSL.SP.1990.054.01.25 --- M. S. Paterson and F. C. Luan: Quartzite rheology under geological conditions / Geological Society, London, Special Publications, 54:299-307, doi:10.1144/GSL.SP.1990.054.01.26 --- David J. Prior, Robert J. Knipe, and Mark R. Handy: Estimates of the rates of microstructural changes in mylonites / Geological Society, London, Special Publications, 54:309-319, doi:10.1144/GSL.SP.1990.054.01.27 --- Werner Skrotzki: Microstructure in hornblende of a mylonitic amphibolite / Geological Society, London, Special Publications, 54:321-325, doi:10.1144/GSL.SP.1990.054.01.28 --- Joseph Clancy White: Albite deformation within a basal ophiolite shear zone / Geological Society, London, Special Publications, 54:327-333, doi:10.1144/GSL.SP.1990.054.01.29 --- Rock Fabrics --- R.D. Law: Crystallographic fabrics: a selective review of their applications to research in structural geology / Geological Society, London, Special Publications, 54:335-352, doi:10.1144/GSL.SP.1990.054.01.30 --- M. W. Jessell and G. S. Lister: A simulation of the temperature dependence of quartz fabrics / Geological Society, London, Special Publications, 54:353-362, doi:10.1144/GSL.SP.1990.054.01.31 --- Jin-Han Ree: High temperature deformation of octachloropropane: dynamic grain growth and lattice reorientation / Geological Society, London, Special Publications, 54:363-368, doi:10.1144/GSL.SP.1990.054.01.32 --- Niels Ø. Olesen and Niels-Henrik Schmidt: The SEM/ECP technique applied on twinned quartz crystals / Geological Society, London, Special Publications, 54:369-373, doi:10.1144/GSL.SP.1990.054.01.33 --- H. Schaeben, H. Siemes, S. Höfler, and G. Will: Practical application of entropy optimization in quantitative texture analysis / Geological Society, London, Special Publications, 54:375-381, doi:10.1144/GSL.SP.1990.054.01.34 --- Deformation of Weak Sediments --- Daniel E. Karig: Experimental and observational constraints on the mechanical behaviour in the toes of accretionary prisms / Geological Society, London, Special Publications, 54:383-398, doi:10.1144/GSL.SP.1990.054.01.35 --- N. A. Yassir: The undrained shear behaviour of fine-grained sediments / Geological Society, London, Special Publications, 54:399-404, doi:10.1144/GSL.SP.1990.054.01.36 --- P.A.R. Nell: Deformation in an accretionary melange, Alexander Island, Antarctica / Geological Society, London, Special Publications, 54:405-416, doi:10.1144/GSL.SP.1990.054.01.37 --- Kevin T. Pickering, Susan M. Agar, and David J. Prior: Vein structure and the role of pore fluids in early wet-sediment deformation, Late Miocene volcaniclastic rocks, Miura Group, SE Japan / Geological Society, London, Special Publications, 54:417-430, doi:10.1144/GSL.SP.1990.054.01.38 --- Experimental Modelling Using Analogue Materials --- Shumin Liu and John M. Dixon: Centrifuge modelling of thrust faulting: strain partitioning and sequence of thrusting in duplex structures / Geological Society, London, Special Publications, 54:431-444, doi:10.1144/GSL.SP.1990.054.01.39 --- K. R. McClay: Deformation mechanics in analogue models of extensional fault systems / Geological Society, London, Special Publications, 54:445-453, doi:10.1144/GSL.SP.1990.054.01.40 --- C. J. L. Wilson and Thomas M. Will: Slickenside lineations due to ductile processes / Geological Society, London, Special Publications, 54:455-460, doi:10.1144/GSL.SP.1990.054.01.41 --- Deformation Mechanisms and Tectonics --- J. P. Gratier and J. F. Gamond: Transition between seismic and aseismic deformation in the upper crust / Geological Society, London, Special Publications, 54:461-473, doi:10.1144/GSL.SP.1990.054.01.42 --- Massimo Coli and Federico Sani: Vein distribution in a thrust zone: a case history from the Northern Apennines, Italy / Geological Society, London, Special Publications, 54:475-482, doi:10.1144/GSL.SP.1990.054.01.43 --- Federico Sani: Extensional veins and shear joint development in a thrust-fold zone (Northern Apennines, Italy) / Geological Society, London, Special Publications, 54:483-490, doi:10.1144/GSL.SP.1990.054.01.44 --- Robert E. Holdsworth and Colin J. Grant: Convergence-related ‘dynamic spreading’ in a mid-crustal ductile thrust zone: a possible orogenic wedge model / Geological Society, London, Special Publications, 54:491-500, doi:10.1144/GSL.SP.1990.054.01.45 --- J. E. Iliffe, I. Lerche, and K. Nakayama: Structural implications of compactional strain caused by fault block rotation: evidence from two-dimensional numerical analogues / Geological Society, London, Special Publications, 54:501-507, doi:10.1144/GSL.SP.1990.054.01.46 --- J. L. Urai, R. D. Schuiling, and J. B. H. Jansen: Alpine deformation on Naxos (Greece) / Geological Society, London, Special Publications, 54:509-522, doi:10.1144/GSL.SP.1990.054.01.47
    Pages: Online-Ressource (XV, 535 Seiten) , Illustrationen, Diagramme, Karten
    ISBN: 0903317583
    Language: English
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  • 6
    facet.materialart.
    Unknown
    Selbstverlag Fachbereich Geowissenschaften, FU Berlin
    In:  Herausgeberexemplar
    Publication Date: 2024-04-29
    Description: Im Bereich der westlichen Poebene stoßen die aus der Kollision der adriatischen und der europäischen Platte hervorgegangenen Gebirge der Alpen und des Apennin mit ihren gegensätzlichen Vergenzen unmittelbar aneinander. Diese in unterschiedlichen Zeiten entstandenen Orogene näher zu untersuchen, war das Ziel der in den Jahren 1983 und 1986 auf dem Südsegment der Europäischen Geotraverse (EGT) durchgeführten umfangreichen refraktionsseismischen Messungen. Zusammen mit älteren refraktionsseismischen Daten bilden diese die Grundlage für die vorliegende Arbeit, die sich mit den Strukturen der die nordwestliche Adriaplatte umgrenzenden Gebirgszuge der Südalpen und des Nordapennin auseinandersetzt. Zusammen mit den Ergebnissen der reflexionsseismischen Messungen bestätigen die refraktionsseismischen Messungen, daß der nordwestliche Teil der adriatischen Platte im Westen und Norden randlich der europäischen Platte aufliegt. Entlang der EGT-Hauptlinie kann auf eine Fortsetzung von Krustenmaterial der europäischen Platte in 45 - 65 km Tiefe bis weit unter die Südalpen geschlossen werden. Die resultierende Krustenüberlappung mit ihren keilförmigen und stark asymmetrischen Strukturen weist Ähnlichkeiten sowohl mit der Situation in den Westalpen als auch mit deijenigen in den Pyrenäen auf. Eine Krustenbilanz im europäischen Teil der Alpen entlang der EGT-Hauptlinie unter Berücksichtigung geologischer Randbedingungen ergibt, daß die tiefe Alpenwurzel vollständig mit europäischem Material gefüllt ist und ihre Ausbildung im Neogen stattfand. Die adriatische Platte zeigt eine sehr prägnante Fragmentierung, so daß sich hier das Bild eines Stapels lithosphärischer Einheiten ergibt. Die einzelnen Fragmente können entsprechend ihrer geographischen Lage und ihrer Reihenfolge im Stapel in eine ligurische Einheit, eine Poebenen- und eine Südalpen-Einheit, welche wiederum auf der europäischen Einheit liegt, unterteilt werden. Unter dem Nordrand des Nordapennnin legen die geophysikalischen Ergebnisse eine intrakontinentale Subduktion nahe. Der damit verbundene Abscherungshorizont durchschneidet die gesamte Kruste wie auch einen Teil des obersten Mantels. Eine Bewegung an diesem Storungssystem muß zu einem Aufsteigen des fragmentierten Randes der Adriaplatte bis einschließlich des obersten Mantels führen. Eine Folge davon kann die in dem oberen Krustenniveau der Toskana zu beobachtende und sich in die externen Bereiche verlagernde Extensionstektonik sein. Die spät-miozäne und pliozäne Überschiebung dieses lithosphärischen Keils ist das Endstadium der orogenen Entwicklung im Nordapennin nach der paläogenen ozeanischen Subduktion und der Ausbildung eines Keils kontinentaler Kruste im frühen und mittleren Miozän. Eine Krustenbilanz entlang der EGT-Hauptlinie ergibt eine Verkürzung von mindestens 90 km, die seit dem Torton stattgefunden haben muß. Zu den geophysikalischen Ergebnissen gehören im einzelnen: Aufgrund der hohen Dichte der seismischen Information konnte entlang der EGT-Hauptline ein detailliertes raytracing-Modell erarbeitet werden, aus dem die folgenden Punkte abgelesen werden können: ► Unter dem nördlichen Teil der Poebene erreicht die Krustenmächtigkeit ein Minimum von 29 -30 km. ► Etwa 20 km nördlich des Po beginnt die adriatische Moho mit einem Winkel von rund 10 - 14° nach Süden einzufallen. Sie erreicht an ihrer südlichsten nachzuweisenden Position, 20 km nördlich der Küstenlinie, eine Tiefe von etwa 55 km. ► Die Moho besitzt unter dem ligurischen Küstenbereich eine Tiefe von 20 - 22 km. Sie ist bis 25 km nördlich der Küste in einer Tiefe von 22 - 24 km nachweisbar. Es folgt, zusammen mit dem letztgenannten Punkt, eine krustale Verdopplung unter dem Hauptkamm des Nordapennin. ► Unter dem nördlichen Rand des Nordapennin sind in der Kruste extrem niedrige Geschwindigkeiten anzutreffen. In einer Tiefe von 8-11 km nimmt die Geschwindigkeit auf 4.0 km/s ab. Eine Zone niedriger Geschwindigkeit (LVL) setzt sich unter südlichem Einfallen zumindest bis in Tiefen von 25 km fort. Die Durchschnittsgeschwindigkeit für die gesamte Kruste ist mit 5.7 km/s außergewöhnlich gering. ► Am Übergang von der Poebene zu den Südalpen existiert ein Sprung in der Moho-Tiefe von 6-8 km. Die Moho der Südalpen erstreckt sich in relativ flacher Lagerung in 36 - 42 km Tiefe nordwärts bis etwa 20 - 25 km nördlich der Insubrischen Linie. ► Unter dem südlichen Teil der Südalpen befindet sich in rund 10 - 15 km Tiefe eine LVL, in der die Geschwindigkeit maximal 5.6 km/s beträgt. ► Das südliche Einfallen der europäischen Moho unter den Schweizer Alpen setzt sich bis unter die Südalpen fort. Die größte Tiefe wird mit rund 65 km knapp südlich der Insubrischen Linie erreicht. Es folgt damit unter den Südalpen und einem Teil der angrenzenden Schweizer Alpen eine weitreichende krustale Überlappung. Aus der Interpretation der Fächer und Profile außerhalb der EGT-Hauptlinie folgt weiterhin: ► Die Moho setzt sich im ligurischen Küstenbereich östlich der Hauptlinie in einem Tiefenniveau von 20 - 25 km um zumindest 100 km bis Viareggio fort. Sie ist bis 20 - 30 km landeinwärts nachweisbar. ► Nach Westen setzt sich die Moho in demselben Tiefenniveau bis unter das Penninikum der Seealpen und unter das südliche Piemont fort. Der Übergang von der adriatischen zur europäischen Platte läßt sich dort nicht in der Konfiguration der Moho-Tiefen beobachten. ► Die Krustenstruktur im Piemont erscheint südlich des Monferrato tektonisch stark gestört. ► Am südlichen Rand der Südalpen setzt sich der Versatz der Moho östlich der Hauptlinie in den östlichen Teil der Südalpen fort. ► An der Grenze zwischen Südalpen und Schweizer Alpen setzt sich östlich des Hauptlinie die Überlagerung der adriatischen Moho über die tiefe europäische Moho zumindest bis zur Judicarien-Linie fort. Das auf der EGT-Hauptlinie entwickelte seismische Strukturmodell wurde auf seine Vereinbarkeit mit dem Schwerefeld überprüft. Die Dichtewerte des Startmodells wurden aus den seismischen Geschwindigkeiten nach einer Standard-Beziehung ermittelt. Zunächst wurde ein Optimierungsverfahren nach der Evolutionsstrategie angewendet. Eine zusätzlich durchgeführte 'trial and error* Modellierung ergab im wesentlichen dieselben Ergebnisse und bestätigte damit die Einsatzmöglichkeiten des Optimierungsverfahrens. Als Ergebnisse sind zu nennen: ► Die Modellierung des Kontaktes der europäischen zur adriatischen Kruste aufgrund des seismischen Modells ist mit Abweichungen der Dichte von unter 0.05 g/cm3 vom Startmodell möglich. ► Die Modellierung des Überganges von der Poebene zum Nordapennin ist problematischer. Es ergibt sich aus dem Startmodell aufgrund der dort bis in die mittlere Kruste seismisch gut belegten niedrigen Geschwindigkeiten ein signifikantes Massendefzit. ► Unter der Poebene befindet sich unterhalb der Moho eine positive Dichteanomalie, deren Wirkung in etwa mit der einer schon früher postulierten Dichteanomalie übereinstimmt. ► Über die Existenz und Ausdehnung der bis in Tiefen von 65 km bzw. 60 km liegenden Krustenwurzeln unter den Südalpen und unter dem Nordapennin kann keine eindeutige Aussage getroffen werden. Die Krustenstruktur wurde weiterhin mit der Verteilung der Hypozentren der Beben verglichen. Hierfür wurden Daten der nationalen seismologischen Stationsnetze aus Italien und der Schweiz untersucht. Die wichtigsten Ergebnisse sind: ► Die größte Konzentration von Hypozentren tritt an dem Sprung von der flachen Moho im ligurischen Küstenbereich zur tiefen Moho unter dem nördlichen Nordapennin auf. ► Die tiefen Hypozentren (Tiefe ≥ 20 km) sind in den Bereichen zu finden, in denen die Krustenmächtigkeit groß (Tiefe ≥ 40 km) ist. ► Die quasi-kontinuierliche Tiefenverteilung der Hypozentren bis in 50 km Tiefe unter dem nördlichen Nordapennin läßt dort auf eine hohe Rigidität und damit vermutlich auf ungewöhnlich niedrige Temperaturen schließen.
    Description: The mountain chains of the Alps and the Northern Apennines, which developed from the collision of the Adriatic and the European plate, border each other in the area of the western Po-plain with opposite vergences. In order to investigate these different orogenes extensive seismic refraction measurements were carried out in the southern segment of the European Geotraverse (EGT) in the years 1983 and 1986. Combined with older refraction profiles they served as a basis for this thesis, which investigates the structures of the mountain ranges that encircle the northwestern Adriatic plate, the Southern Alps and the Northern Apennines. Together with the results of seismic reflection studies the seismic refraction measurements confirmed that the northern and western margin of the northwestern part of the Adriatic plate is lying onto the European plate. Along the EGT-mainline a continuation of crustal material of the European plate at a depth range of 45 – 65 km beneath the Southern Alps can be concluded. The resulting crustal overlapping with its flakelike and strongly asymmetric structures shows similarities to the tectonic situation in the western part of the Alps as well as to the Pyrenees. A crustal balancing in the European part of the Alps under consideration of geological constraints shows, that the deep Alpine root contains European crustal material and that this deep root developed in neogene times. The Adriatic plate shows a very distinct fragmentation with a staking of lithospheric units. The fragments can be subdivided according to their geographical position and to their stacking sequence in the Ligurian, the Po-plain and the Southern Alps unit, the last one lying on the European plate. Beneath the northern rim of the Northern Apennines the geophysical results suggest a intracontinental subduction. The corresponding decoupling horizon cuts through the whole crust and a part of the uppermost mantle. Movement along this system must result in an upwards motion of the fragmented rim of he Adriatic plate, including parts of the upper mantle. As a consequence, the extensional tectonic, which can be observed in the upper crustal layers in Tuscany, may develop. The late-miocene and pliocene thrusting of the lithospheric wedge seems to be the final stage of the orogenic development in the Northern Apennines after the paleogene oceanic subduction and the development of a wedge of continental crust in early to middle miocene. A crustal balancing along the EGT-mainline results in a minimum shortening of 90 km since tortonian times. The geophysical results in particular are: ► Below the northern part of the Po-plain the crustal thickness reaches 29 - 30 km. ► About 20 km north of the river Po the Moho starts to dip southwards with an angle of 10 - 14°. At the southernmost provable position 20 km north of the coastline the depth of the Moho reaches 55 km. ► Beneath the Ligurian coast the Moho lies at a depth of 20 - 22 km. It is documented till 25 km north of the coastline at a depth of 22 - 24 km. Together with the previous point it follows a crustal doubling beneath the crest of the Northern Apennines. ► Under the northern part of the Northern Apennines extrem low velocities were detected in the crust. At a depth of 8 - 11 km the velocity lowers to only 4.0 km/s. A low velocity layer (LVL) continues with a southern dip to a depth of at least 25 km. The avarage crustal velocity in this area is as low as 5.7 km/s. ► At the transition from the Po-plain to the Southern Alps the Moho jumps 6-8 km in depth. The Moho beneath the Southern Alps continues northwards with a relatively low dip at a depth of 36 - 42 km to about 20 - 25 km north of the Insubric line. ► Below the southern part of the Southern Alps a LVL exists at a depth of about 10 - 16 km where the velocity drops to at least 5.6 km/s. ► The southward dip of the European Moho beneath the Swiss Alps continues below the Southern Alps. The maximum depth of 65 km is reached some km south of the Insubric line. It follows a crustal overlapping beneath the Southern Alps and beneath a part of the adjacent Swiss Alps. From the interpretation of fans and profils off the EGT-mainline it follows: ► In the Ligurian coastal area the Moho continues east of the mainline at a depth of 20 - 25 km for at least 100 km to Viareggio. Onshore it is provable for a distance of 20 - 30 km off the coastline. ► West of the mainline the Moho continues in the same depth range till below the penninic realm in the coastal area of the Western Alps and below southern Piemont. The transition from the Adriatic to the European plate cannot be seen in the configuration of the Moho. ► The crustal structure south of the Monferrato seems to be tectonically distorted. ► Beneath the southern boundary of the Southern Alps the jump in the depth of the Moho continues into the eastern part of the Southern Alps. ► At the boundary between the Southern Alps and the Swiss Alps the overlapping of the Adriatic Moho over the deep European Moho continues eastwards at least till the Judicaria-line. The structural model along the EGT-mainline based on seismic data must be compatible with the gravity field. Density values of a starting model were calculated using a standard relationship between velocity and density. To fit the observed gravity , an optimization method according to an evolution strategy was applied. Additional trial and error modeling was done, which gave essentially the same results and confirmed the applicability of the optimization method. The following results have been found: ► The modeling of the transition between the European and the Adriatic lithosphere on the basis of the seismic model is possible without problems and deviations of less than 0.05 g/cm3 from the starting model. ► The modeling of the transition between the Po-plain and the Northern Apennines causes more problems. A significant mass deficit results from the starting model, which is due to the the seismically well proven low velocities in this area. ► A positive density anomaly must exist in the area of the Po-plain below the Moho, which coincides roughly with the density anomaly postulated earlier in this region. ► No definite statement is possible concerning the existence and extend of the up to 65 km resp. 60 km deep crustal roots beneath the Southern Alps and the Northern Apennines. The crustal structure was furtheron compared with the distribution of hypocentres of earthquakes. The data were taken from the national seismological networks in Italy and Switzerland. The most important results are: ► The concentration of hypocentres is highest where the shallow Moho in the Ligurian coastal area jumps to the deep Moho beneath the northern part of the Northern Apennines. ► Deep hypocentres (depth ≥ 20 km) are found in areas where the crustal thickness is large (thickness ≥ 40 km). ► The quasi-continuous depth distribution of hypocentres down to a depth of 50 km below the northern part of the Northern Apennines suggests a high rigidity und therefore presumably unusual low temperatures.
    Description: thesis
    Description: DFG, SUB Göttingen
    Keywords: ddc:550 ; Tektonik ; Refraktionsseismik ; Geophysik
    Language: German
    Type: doc-type:book
    Format: 234
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