Terrane Processes At The Margins Of Gondwana

Author : Alan Vaughan,Alan P. M. Vaughan,Philip T. Leat,Robert J. Pankhurst
Publisher : Geological Society of London
Page : 462 pages
File Size : 54,6 Mb
Release : 2005
Category : Science
ISBN : 1862391793

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Terrane Processes at the Margins of Gondwana by Alan Vaughan,Alan P. M. Vaughan,Philip T. Leat,Robert J. Pankhurst Pdf

The Australide orogen, the southern hemisphere Neoproterozoic to Mesozoic terrane accretionary orogen that forms the palaeo-Pacific margin of Gondwana, is one of the largest and longest-lived orogens on Earth. This book brings together a series of reviews and multidisciplinary research papers that comprehensively cover the Australides from the Tasman orogen of eastern Australia to the Neoproterozoic and Palaeozoic orogens of South America, taking in New Zealand and Antarctica along the way. It deals with the evolution of the southern Gondwana margin, as it grew during a series of terrane accretion episodes from the late Proterozoic through to final fragmentation in mid-Cretaceous times. Global perspectives are given by comparison with the Palaeozoic northern Gondwana margin and documentation of world-wide terrane accretion episodes in the Late Triassic-Early Jurassic and mid-Cretaceous. The Tasmanides of eastern Australia, and the terrane histories of New Zealand and southern South America are given comprehensive up-to-date reviews.

Author : A.H.F. Robertson
Publisher : Geological Society of London
Page : 380 pages
File Size : 53,8 Mb
Release : 2019-05-09
Category : Science
ISBN : 9781786204301

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Paleozoic–Mesozoic Geology of South Island, New Zealand Subduction-related Processes Adjacent to SE Gondwana by A.H.F. Robertson Pdf

This volume presents a set of research papers that provide new data and interpretations of the Permian–Triassic terranes of SE Gondwana, now exposed in South Island, New Zealand. Following an introduction for general readers, a historical summary and a review of biostratigraphy, the individual papers primarily focus on the Permian magmatic arc of the Brook Street Terrane, the classic Permian Dun Mountain ophiolite and the Permian–Triassic Maitai Group sedimentary succession. The new results emphasize the role of subduction and terrane displacement adjacent to the Permo-Triassic Gondwana margin, and present fundamental insights into three crustal processes: subduction initiation, supra-subduction zone oceanic crust genesis and forearc basin evolution. The volume concludes with a wide-ranging summary and synthesis of the regional Cambrian to Early Cretaceous tectonostratigraphy of New Zealand’s South Island in relation to the wider areas of Zealandia, East Australia and West Antarctica. The volume will interest geoscientists, including stratigraphers, sedimentologists, palaeontologists, igneous petrologists, geochemists, geochronologists and economic geologists, and is aimed at professional geologists and advanced students of geology.

Author : Robert J. Pankhurst,Carlos W. Rapela
Publisher : Geological Society of London
Page : 394 pages
File Size : 55,8 Mb
Release : 1998
Category : Science
ISBN : 1862390215

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The Proto-Andean Margin of Gondwana by Robert J. Pankhurst,Carlos W. Rapela Pdf

This text brings together multidisciplinary research and review papers on the Lower Palaeozoic geology of the Sierras Pampeanas and the Precordillera of central west Argentina. It deals with the final stages of assembly of the supercontinent of Gondwana and its tectonic interaction with Laurentia (the North American continent of today).

Author : S.L. Harley,I.C.W. Fitzsimons,Y. Zhao
Publisher : Geological Society of London
Page : 241 pages
File Size : 52,9 Mb
Release : 2014-01-24
Category : Science
ISBN : 9781862393677

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Antarctica and Supercontinent Evolution by S.L. Harley,I.C.W. Fitzsimons,Y. Zhao Pdf

Antarctica preserves a rock record that spans three and a half billion years of history and has a remarkable story to tell about the evolution of our Earth, from the hottest crustal rocks yet found in an orogenic system, to the assembly and breakup of Gondwana in the Phanerozoic. This volume highlights our improved understanding of the tectonic events that have shaped Antarctica and how these potentially relate to supercontinent assembly and fragmentation. The internal constitution of the East Antarctic Shield is assessed using information available from the basement geology and from detritus preserved as Mesozoic sediments in the Trans Antarctic Mountains. Accretionary orogenesis along the proto-Pacific margin of Antarctica is examined and the volumes of intracrustal melting compared with juvenile magma additions in these complex orogenic systems assessed. This special volume demonstrates the diversity of approaches required to elucidate and understand crustal evolution and evaluate the supercontinent concept.

Author : G.M. Gibson,F. Roure,G. Manatschal
Publisher : Geological Society of London
Page : 335 pages
File Size : 52,9 Mb
Release : 2015-10-19
Category : Science
ISBN : 9781862397200

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Sedimentary Basins and Crustal Processes at Continental Margins by G.M. Gibson,F. Roure,G. Manatschal Pdf

Continental margins and their fossilized analogues are important repositories of natural resources. With better processing techniques and increased availability of high-resolution seismic and potential field data, imaging of present-day continental margins and their embedded sedimentary basins has reached unprecedented levels of refinement and definition, as illustrated by examples described in this volume. This, in turn, has led to greatly improved geological, geodynamic and numerical models for the crustal and mantle processes involved in continental margin formation from the initial stages of rifting through continental rupture and break-up to development of a new ocean basin. Further informing these models, and contributing to a better understanding of the features imaged in the seismic and potential field data, are observations made on fossilized fragments of exhumed subcontinental mantle lithosphere and ocean–continent transition zones preserved in ophiolites and orogenic belts of both Palaeozoic and Mesozoic age from several different continents, including Europe, South Asia and Australasia.

Author : U.S. Geological Survey,National Research Council,Polar Research Board
Publisher : National Academies Press
Page : 162 pages
File Size : 48,9 Mb
Release : 2008-05-18
Category : Science
ISBN : 9780309118545

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Antarctica by U.S. Geological Survey,National Research Council,Polar Research Board Pdf

Antarctica is the center from which all surrounding continental bodies separated millions of years ago. Antarctica: A Keystone in a Changing World, reinforces the importance of continual changes in the country's history and the impact of these changes on global systems. The book also places emphasis on deciphering the climate records in ice cores, geologic cores, rock outcrops and those inferred from climate models. New technologies for the coming decades of geoscience data collection are also highlighted. Antarctica: A Keystone in a Changing World is a collection of papers that were presented by keynote speakers at the 10th International Symposium on Antarctic Earth Sciences. It is of interest to policy makers, researchers and scientific institutions.

Author : Malte C. Ebach,Bernard Michaux
Publisher : Springer Nature
Page : 67 pages
File Size : 45,5 Mb
Release : 2020-10-01
Category : Science
ISBN : 9783030517731

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Biotectonics by Malte C. Ebach,Bernard Michaux Pdf

Tectonic plates are constantly moving, either crashing into one another creating a mosaic of mountains and shallow seas, or tearing apart and isolating large swathes of land. In both cases plate tectonics separates populations leading to the evolution of biota. Tectonics is also responsible for the destruction life, for instance when large coral reefs or shallow seas are compressed to form mountain peaks. Could recent research into these processes provide enough evidence to show that tectonics may be the ultimate driver of life on Earth? Our book delves into the current research in tectonics, particularly neotectonics, and its impact on rapid changes on biogeographical classification, also known as bioregionalisation. We also introduce a new term biotectonics that studies the impact of tectonics on biogeoregionalisation. The question we ask is how tectonics directly influences the distribution of biota in four case studies: the Mesozic and early Palaeogene Australides, which spans the Proto-Pacific coast of the South America, Antaractica and Australiasia; and the Neogene of Australia. To conclude we examine the role of neotectonics on tranistion zones and the Amazon Basin and make a case for biotectonic extinction.

Author : M.J. Hambrey,P.F. Barker,P.J. Barrett,V. Bowman,B. Davies,J.L. Smellie,M. Tranter
Publisher : Geological Society of London
Page : 497 pages
File Size : 42,8 Mb
Release : 2013-12-05
Category : Science
ISBN : 9781862393639

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Antarctic Palaeoenvironments and Earth-Surface Processes by M.J. Hambrey,P.F. Barker,P.J. Barrett,V. Bowman,B. Davies,J.L. Smellie,M. Tranter Pdf

The volume highlights developments in our understanding of the palaeogeographical, palaeobiological, palaeoclimatic and cryospheric evolution of Antarctica. It focuses on the sedimentary record from the Devonian to the Quaternary Period. It features tectonic evolution and stratigraphy, as well as processes taking place adjacent to, beneath and beyond the ice-sheet margin, including the continental shelf. The contributions in this volume include several invited review papers, as well as original research papers arising from the International Symposium on Antarctic Earth Sciences in Edinburgh, in July 2011. These papers demonstrate a remarkable diversity of Earth science interests in the Antarctic. Following international trends, there is particular emphasis on the Cenozoic Era, reflecting the increasing emphasis on the documentation and understanding of the past record of ice-sheet fluctuations. Furthermore, Antarctic Earth history is providing us with important information about potential future trends, as the impact of global warming is increasingly felt on the continent and its ocean.

Author : Rajat Mazumder
Publisher : Elsevier
Page : 614 pages
File Size : 53,8 Mb
Release : 2016-10-08
Category : Science
ISBN : 9780128033876

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Sediment Provenance by Rajat Mazumder Pdf

Sediment Provenance: Influences on Compositional Change from Source to Sink provides a thorough and inclusive overview that features data-based case studies on a broad range of dynamic aspects in sedimentary rock structure and deposition. Provenance data plays a critical role in a number of aspects of sedimentary rocks, including the assessment of palaeogeographic reconstructions, the constraints of lateral displacements in orogens, the characterization of crust which is no longer exposed, the mapping of depositional systems, sub-surface correlation, and in predicting reservoir quality. The provenance of fine-grained sediments—on a global scale—has been used to monitor crustal evolution, and sediment transport is paramount in considering restoration techniques for both watershed and river restoration. Transport is responsible for erosion, bank undercutting, sandbar formation, aggradation, gullying, and plugging, as well as bed form migration and generation of primary sedimentary structures. Additionally, the quest for reservoir quality in contemporary hydrocarbon exploration and extraction necessitates a deliberate focus on diagenesis. This book addresses all of these challenges and arms geoscientists with an all-in-one reference to sedimentary rocks, from source to deposition. Provides the latest data available on various aspects of sedimentary rocks from their source to deposition Features case studies throughout that illustrate new data and critical analyses of published data by some of the world’s most pre-eminent sedimentologists Includes more than 150 illustrations, photos, figures, and diagrams that underscore key concepts

Author : Andrew Tholt
Publisher : Unknown
Page : 0 pages
File Size : 50,9 Mb
Release : 2018
Category : Geological time
ISBN : OCLC:1049989412

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Metamorphic Evolution of the Sierra de Maz by Andrew Tholt Pdf

The Mesoproterozoic MARA terrane of South America has been interpreted to collide and subduct beneath the Gondwana margin of South America in the Cambrian. To test the proposed tectonic model, I combine metamorphic petrology and geochronology along with quantitative thermobarometry to constrain metamorphic events and peak conditions within the Sierra de Maz of the MARA terrane and the adjacent Sierra de Ramaditas. Foliations within the Sierra de Maz are steeply east dipping, with a major sinistral reverse shear zone separating the two major units (Zaino and Maz Complexes) of the northern range. Garnet Lu-Hf records a single metamorphic event in the Zaino Complex at ~425 Ma. Combined garnet Lu-Hf and monazite U-Pb reveal a polymetamorphic history in the Maz Complex with two distinct metamorphic events at ~1.2 Ga and ~425 Ma. Both Complexes were deformed by sinstral transpression between 435 and 415 Ma. Preserved across these Complexes is a Silurian-Devonian amphibolite to granulite inverted metamorphic field gradient that is compatible with observed and modeled gradients from other transpressive orogens. The Ramaditas complex records lower-pressure granulite facies metamorphism at ~460 Ma, was deformed at ~426 Ma, and is correlated with the Famatina arc rather than its previously proposed affiliation to units in the Sierra de Maz. Units of the Sierra de Maz do not share metamorphic histories with nearby ranges within the proposed extent of the MARA terrane. Age dissimilarities require that portions of the MARA terrane were tectonically juxtaposed likely as a result of transpressive translation along the Gondwana margin.

Author : Wolfgang Franke (géologue).)
Publisher : Geological Society of London
Page : 474 pages
File Size : 53,9 Mb
Release : 2000
Category : Science
ISBN : 1862390738

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Orogenic Processes by Wolfgang Franke (géologue).) Pdf

Author : D.A.T. Harper,T. Servais
Publisher : Geological Society of London
Page : 485 pages
File Size : 45,6 Mb
Release : 2014-01-27
Category : Science
ISBN : 9781862393738

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Early Palaeozoic Biogeography and Palaeogeography by D.A.T. Harper,T. Servais Pdf

The Early Palaeozoic was a critical interval in the evolution of marine life on our planet. Through a window of some 120 million years, the Cambrian Explosion, Great Ordovician Biodiversification Event, End Ordovician Extinction and the subsequent Silurian Recovery established a steep trajectory of increasing marine biodiversity that started in the Late Proterozoic and continued into the Devonian. Biogeography is a key property of virtually all organisms; their distributional ranges, mapped out on a mosaic of changing palaeogeography, have played important roles in modulating the diversity and evolution of marine life. This Memoir first introduces the content, some of the concepts involved in describing and interpreting palaeobiogeography, and the changing Early Palaeozoic geography is illustrated through a series of time slices. The subsequent 26 chapters, compiled by some 130 authors from over 20 countries, describe and analyse distributional and in many cases diversity data for all the major biotic groups plotted on current palaeogeographic maps. Nearly a quarter of a century after the publication of the ‘Green Book’ (Geological Society, London, Memoir12, edited by McKerrow and Scotese), improved stratigraphic and taxonomic data together with more accurate, digitized palaeogeographic maps, have confirmed the central role of palaeobiogeography in understanding the evolution of Early Palaeozoic ecosystems and their biotas.

Author : J. Duncan Keppie,J. Brendan Murphy,F. Ortega-Gutierrez,W. G. Ernst
Publisher : CRC Press
Page : 416 pages
File Size : 50,7 Mb
Release : 2008-04-09
Category : Science
ISBN : 9781420073737

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Middle American Terranes, Potential Correlatives, and Orogenic Processes by J. Duncan Keppie,J. Brendan Murphy,F. Ortega-Gutierrez,W. G. Ernst Pdf

Consisting of papers that have appeared recently in International Geology Review, Middle American Terranes, Potential Correlatives, and Orogenic Processes focuses on Middle American terranes in which tectonic processes, including flat-slab subduction, for orogenic development are examined at various times since the late Mesoproterozoi

Author : N.M.W. Roberts,M. van Kranendonk,S. Parman,S. Shirey,P.D. Clift
Publisher : Geological Society of London
Page : 356 pages
File Size : 55,8 Mb
Release : 2015-02-16
Category : Science
ISBN : 9781862393752

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Continent Formation Through Time by N.M.W. Roberts,M. van Kranendonk,S. Parman,S. Shirey,P.D. Clift Pdf

The continental crust is our archive of Earth history, and the store of many natural resources; however, many key questions about its formation and evolution remain debated and unresolved: What processed are involved in the formation, differentiation and evolution of continental crust, and how have these changed throughout Earth history?How are plate tectonics, the supercontinent cycle and mantle cooling linked with crustal evolution?What are the rates of generation and destruction of the continental crust through time?How representative is the preserved geological record? A range of approaches are used to address these questions, including field-based studies, petrology and geochemistry, geophysical methods, palaeomagnetism, whole-rock and accessory-phase isotope chemistry and geochronology. Case studies range from the Eoarchaean to Phanerozoic, and cover many different cratons and orogenic belts from across the continents.

Author : Philip Kearey,Keith A. Klepeis,Frederick J. Vine
Publisher : John Wiley & Sons
Page : 512 pages
File Size : 43,7 Mb
Release : 2009-01-20
Category : Science
ISBN : 9781405107778

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Global Tectonics by Philip Kearey,Keith A. Klepeis,Frederick J. Vine Pdf

The third edition of this widely acclaimed textbook provides a comprehensive introduction to all aspects of global tectonics, and includes major revisions to reflect the most significant recent advances in the field. A fully revised third edition of this highly acclaimed text written by eminent authors including one of the pioneers of plate tectonic theory Major revisions to this new edition reflect the most significant recent advances in the field, including new and expanded chapters on Precambrian tectonics and the supercontinent cycle and the implications of plate tectonics for environmental change Combines a historical approach with process science to provide a careful balance between geological and geophysical material in both continental and oceanic regimes Dedicated website available at www.blackwellpublishing.com/kearey/