Tectonics Of The Southeastern Tibetan Plateau And Its Adjacent Foreland
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Tectonics Of The Southeastern Tibetan Plateau And Its Adjacent Foreland
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Author : B. C. Burchfiel
language : en
Publisher: Geological Society of America
Release Date : 2012-01-01
Tectonics Of The Southeastern Tibetan Plateau And Its Adjacent Foreland written by B. C. Burchfiel and has been published by Geological Society of America this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-01-01 with Science categories.
"This volume provides a summary of the geology of Eastern and Southeastern Tibet and its foreland. It covers an area of approximately 1.5 million square kilometers in 15 chapters on tectonic units that the authors recognize during 25 years of both field and laboratory study. Each chapter discusses the authors' understanding of the geology and offers interpretations of special geological relations, both local and regional, as well as currently unresolved problems of which there are many in this vast and poorly known region. Chapter 16 summarizes and interprets the preceding chapters. The volume is accompanied by CDs containing four plates: two tectonostratigraphic maps, a map of unconformities and a plate of cross sections, in both Illustrator and ArcGIS formats. This is a unique map presentation and one that the authors suggest as a model for all geological maps"--Provided by publisher.
Tectonics Of The Southeastern Tibetan Plateau And Its Adjacent Foreland
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Author : Zhiliang Chen
language : en
Publisher:
Release Date : 2018
Tectonics Of The Southeastern Tibetan Plateau And Its Adjacent Foreland written by Zhiliang Chen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with Geology, Structural categories.
Permian Triassic Tethyan Orogeny Along The Southern Eurasian Margin
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Author : Mingcai Hou
language : en
Publisher: Frontiers Media SA
Release Date : 2023-02-07
Permian Triassic Tethyan Orogeny Along The Southern Eurasian Margin written by Mingcai Hou and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-02-07 with Science categories.
Myanmar
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Author : A.J. Barber
language : en
Publisher: Geological Society of London
Release Date : 2017-11-20
Myanmar written by A.J. Barber and has been published by Geological Society of London this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-11-20 with Science categories.
Myanmar is a country vastly rich in gold, silver, base metals, tin–tungsten, gems and hydrocarbons and is one of the last exploration frontiers remaining in the world. Tectonically Myanmar lies at the eastern end of the Himalayan Mountain Chain and over the last 50 Ma has been profoundly affected by the collision between India and Eurasia, which is still ongoing, with frequent destructive earthquakes. Recent advances have been made in understanding the results of the collision, through the study of geochronology, seismicity, stratigraphy and structure. The development of a systematic mapping programme has been restricted by problems of access, due to limited infrastructure and armed insurgencies, meaning that large areas of the country have not been explored adequately. Recent political changes and reforms, with reconciliations with various ethnic groups, however, will permit access to large areas in Kayin, Kayah, Shan and Kachin States, enabling further research and exploration in new crustal blocks and terranes. In this Memoir a group of Myanmar and international geologists have combined to include all that is currently known about the geology of Myanmar, its mineral and energy resources and its tectonic development.
The Andaman Nicobar Accretionary Ridge
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Author : P.C. Bandopadhyay
language : en
Publisher: Geological Society of London
Release Date : 2017-03-01
The Andaman Nicobar Accretionary Ridge written by P.C. Bandopadhyay and has been published by Geological Society of London this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-03-01 with Science categories.
Rocks exposed across the hundreds of islands that belong to the 800 km long Andaman--Nicobar archipelago provide a condensed window into the active subduction zone that separates the India--Australia plate from the over-riding Burma--Sunda plate. Despite a strategic and seismically active location the Andaman-Nicobar ridge has seen comparatively little research. This Memoir provides the first detailed and comprehensive account of geological mapping and research across the island chain and adjacent ocean basins. Chapters examine models of Cenozoic rifting of the Andaman Sea and the regional tectonic and seismogenic framework. A detailed critical review of the Andaman–Nicobar stratigraphy, supported by new data, includes arc volcanism and a description of Barren Island, India’s only active volcano. Seismic history and hazards and the impacts of the 2004 earthquake and tsunami are also described. The volume ends with an examination of the region’s natural resources and hydrocarbon prospects.
China Seismic Experimental Site
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Author : Yong-Gang Li
language : en
Publisher: Springer Nature
Release Date : 2022-05-10
China Seismic Experimental Site written by Yong-Gang Li and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-05-10 with Science categories.
This book introduces an integrated conceptual framework of the China Seismic Experimental Site (CSES), describes its scientific challenges and research priorities, and reports preliminary results coming out of observational infrastructure in seismology, tectonophysics, geodesy, geophysics and geochemistry. Preliminary community fault model, community velocity model, and community strain rate model in the CSES are described in this book. A multidisciplinary test observation system includes GNSS, seismic array, and deep drilling system under construct around middle segment of the Xiansuihe-Xiaojiang fault and other seismogenic faults in the CSES which are also introduced. This book introduces multidisciplinary topics and a wide spectrum of solid earth system to describe various disciplines, methods, and techniques through the CSES. This book presents a vision of the CSES that is dedicated to deepen the scientific understanding of continental earthquake preparation and occurrence and enhance the disaster resilience of the society. It aims at establishing a field laboratory of earthquake science, in which international and interdisciplinary cooperation could be fostered and supported. Contents of this book include the following: • History of Seismic Experiment Sites in the World. • Launching of CSES Project: Seismicity, Existed Earthquake Monitoring Networks, and Historical Seismic Disasters. • Seismotectonics and Geodynamics of the Eastern Margin of the Tibetan Plateau with Implication for the CSES. • Theoretical Framework of CSES in View of Natural Science and in view of Social Science. • Updated Earthquake Monitoring Network in China. • CSES Community Models of Geology, Structure, and Deformation. • Earthquake Forecasting Models. • CSES Products: Massive Data Procession and Distribution. • A Review of the Field Expedition of the June 17, 2019, Changning, Sichuan, M6.0 Earthquake. • Rupture Structure and Earthquake Risk of the South Longmenshan Fault Viewed by Guided Waves. • Seismic Risk Assessment. • Model of a Seismic Experimental Site with Application to the Comparative Study between CSES and ASES.
Tectonic Evolution Of The Easternmost Himalayan Collisional System
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Author : Peter Jasura Haproff
language : en
Publisher:
Release Date : 2018
Tectonic Evolution Of The Easternmost Himalayan Collisional System written by Peter Jasura Haproff and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with categories.
The Cenozoic India-Asia collision generated the Tibetan Plateau and the Himalayan collisional system, the latter consisting of the convergence-perpendicular Himalayan orogen and the convergence-parallel Eastern and Western Flanking Belts located along the margins of India. Studying the evolution of each of these tectonic domains is critical to understanding the collision process and differentiating the end-member models of indenter-induced continental deformation. Despite this importance, there is a notable lack of geologic investigations on the development of the flanking belts in comparison to the extensive research of the Tibetan Plateau and east-trending Himalayan orogen. To address this problem, the research of this dissertation is focused on the Mesozoic-Cenozoic tectonic evolution of the northernmost segment of the Eastern Flanking Belt, the northern Indo-Burma Ranges, which are located directly east to southeast of the eastern Himalayan syntaxis. In the following chapters, I integrate the results of geologic field mapping, balanced cross section construction and restoration, U-Pb zircon geochronology, whole-rock geochemistry, thermobarometry, and (U-Th)/He zircon thermochronology to examine the litho-structural framework of the northern Indo-Burma Ranges and tectonic relationships in time and space with the adjacent eastern Himalayan orogen, the southern Tibetan Plateau, and the Eastern Flanking Belt. The research of this dissertation shows that the study area exposes a southwest- to west-directed Cenozoic thrust belt cored by a hinterland-dipping duplex system. Thrust faults sole into a northeast- to east-dipping di collement, which extends to >30 km depth. Southwestward forward propagation of the thrust belt in the foreland was coeval with out-of-sequence thrusting in the hinterland. This structural framework combined with the observed southward deflection in the trends of ductile stretching lineations within shear zones (northeast-trending in the north and east-trending in the south) suggest deformation around the eastern Himalayan syntaxis is best approximated by models of clockwise lithospheric flow accommodated by distributed thrusting. Major lithologic units involved in the northern Indo-Burma thrust belt from south to north include the easternmost continuations of the Tertiary Sub-Himalayan Sequence, Proterozoic-Cambrian Lesser Himalayan Sequence, and Indus-Yarlung suture zone of the Himalayan orogen and the Mesozoic northern Gangdese batholith belt and Mesoproterozoic basement of the Lhasa terrane. However, several Himalayan-Tibetan lithologic units are missing, including the Paleoproterozoic-Ordovician Greater Himalayan Crystalline Complex, Proterozoic-Eocene Tethyan Himalayan Sequence, Mesozoic-Cenozoic Xigaze forearc basin, and Cenozoic igneous rocks of the southern Gangdese batholith. Research suggests that these units were present in the study area at the onset of the Cenozoic India-Asia collision and their present-day absence is related to an eastward increase in post-collisional crustal shortening and continental underthrusting along the Himalayan collisional system. This interpretation is supported by a Cenozoic shortening strain estimate of ~81% (>156 km) across the northern Indo-Burma Ranges and a dramatic southward decrease in the width of the collisional system from ~200 km across the Himalayan orogen to ~5 km across the study area. Active deformation across the northern Indo-Burma Ranges and adjacent southeastern Tibetan Plateau is characterized by right-slip transpression partitioned between the range-bounding, oblique-slip Mishmi thrust in the southwest and right-slip Puqu and Parlung faults of Jiali fault zone in the northeast. The leading Mishmi thrust is kinematically-linked with the ~1000-km-long, right-slip Sagaing fault to the south via a previously-unmapped, southwest-trending restraining bend. This structural relationship of the Eastern Flanking Belt provides a key example of the spatial transition from transpressional deformation near the corner of an indenter to discrete right-slip motion along the side of an indenter during continental collision.
Growth And Collapse Of The Tibetan Plateau
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Author : Richard Gloaguen
language : en
Publisher: Geological Society of London
Release Date : 2011
Growth And Collapse Of The Tibetan Plateau written by Richard Gloaguen and has been published by Geological Society of London this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Boundary layer (Meteorology) categories.
Despite agreement on first-order features and mechanisms, critical aspects of the origin and evolution of the Tibetan Plateau, such as the exact timing and nature of collision, the initiation of plateau uplift, and the evolution of its height and width, are disputed, untested or unknown. This book gathers papers dealing with the growth and collapse of the Tibetan Plateau. The timing, the underlying mechanisms, their interactions and the induced surface shaping, contributing to the Tibetan Plateau evolution are tightly linked via coupled and feedback processes. We present interdisciplinary contributions allowing insight into the complex interactions between lithospheric dynamics, topography building, erosion, hydrological processes and atmospheric coupling. The book is structured in four parts: early processes in the plateau formation; recent growth of the Tibetan Plateau; mechanisms of plateau growth; and plateau uplift, surface processes and the monsoon.
Investigations Into The Tectonics Of The Tibetan Plateau
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Author : B. C. Burchfiel
language : en
Publisher: Geological Society of America
Release Date : 2008
Investigations Into The Tectonics Of The Tibetan Plateau written by B. C. Burchfiel and has been published by Geological Society of America this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Science categories.
"This volume includes a variety of papers on the tectonics of the Tibetan Plateau and the Iranian Plateau that were presented at the first joint meeting between the Geological Society of America and the Chinese Academy of Sciences. Each paper deals with a different aspect of the geology and/or the geophysics of the tectonic evolution of the plateau. Although most of the papers discuss areas in the northeastern part of the plateau, one concentrates on the complexity of the Cenozoic shear zones in Yunnan and one focuses on the late Cenozoic extensional tectonism along the western margin of the Iranian Plateau. Several papers discuss aspects of Tibetan tectonics not covered in any other papers and arrive at unique interpretations."--Publisher's website.
The Evolution Of The Northeastern Margin Of The Tibetan Plateau
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Author : Brian G. Hough
language : en
Publisher:
Release Date : 2010
The Evolution Of The Northeastern Margin Of The Tibetan Plateau written by Brian G. Hough and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with categories.
"Tracking climate change through the use of paleoclimate proxies has the potential to reveal the spatial and temporal evolution of orogens and their associated plateaux. The development of topography associated with the Cenozoic evolution of the Tibetan plateau is coupled to climate, and feedbacks between climate and tectonics occur at all scales. Because climate changes resulting from topographic growth should scale with the amount, extent, and timing of surface uplift, this dissertation documents temporal and spatial changes in paleoclimate of the northeastern margin of the Tibetan plateau since ~30 Ma, in order to delineate when the modern climate pattern was achieved and, by inference, when the Tibetan plateau reached its current dimensions. Sedimentation in basins adjacent to the plateau margin likely began in a foreland basin setting that was later segmented by the growth of basin-bounding structures presumably during upward and outward growth of the plateau. This study focuses on a number of sub-basins in northeast Tibet, including Guide, Jian Zha, Xunhua, Tong Ren, Hualong, and Linxia, that span up to 30 myr in age and range up to 3 km thick. New lithologic, magnetostratigraphic, and stable isotope records from these basins suggest that topography began to develop in the Eocene and continued through the late Miocene before jumping ~100 km outward at ~8 Ma to the Liupan Shan and Haiyuan faults. Perturbations to local climate patterns resulted from the evolution of local topography and basin segmentation. These patterns are tracked through comparison of stable isotope compositions of calcareous basin fill materials. Similarity of isotopic compositions is interpreted to reflect the presence of integrated basins whereas distinct isotopic compositions reflect unique basin hydrologies. Within the study area, changes in isotope trends are observed throughout each record indicating the influence of local climate conditions on isotopic values. Synchronous isotope changes in multiple records are observed at 18.5, 16.3, and 9.4 Ma possibly corresponding with changes in regional scale climate. A time-transgressive trend of Miocene aridification in the lee of growing topography along the plateau's northeast margin is roughly coeval with and spatially consistent with the blocking of vapor transport by west-to-east growth of eastern Tibet. Modern rainfall data collected from 2007-2009 across the Tibetan plateau's northeastern margin show seasonal trends related to changes in air temperature and elevation, but not precipitation amount or relative humidity. To assess the spatial variability and thus the degree to which any one monitoring station is representative of a large geographic region, climate variables and rainwater isotope data from seven collection stations located across the study area were compared to each other and to the Global Network of Isotopes in Precipitation (GNIP) station data from Lanzhou. Annual mean and long-term mean isotope compositions of rainfall match each other and those from the GNIP station in Lanzhou suggesting that the long-term values for any one station are representative over relatively large regions. Trends in [delta]8O and d-excess indicate that source regions for summertime precipitation in northeast Tibet are consistent with increased soil moistening and local recycling of water vapor. When carbonates derived from modern rainfall are compared to time integrated paleo-carbonate samples, no significant change in regional climate are evident since at least 3-4 Ma. The results of this thesis demonstrate that changes in local climate are related to the onset of local deformation and that deformation and associated basin segmentation in NE Tibet initiated prior to uplift of eastern Tibet. However, the timing of regional-scale climate change, highlighted by a west-to-east pattern of aridification in northern and northeastern Tibet, is consistent with the systematic displacement of vapor pathways around a progressively eastward uplifting eastern Tibetan plateau. Once established, the upwind climate regime, and by inference the topographic framework of northeast Tibet, has remained stable since ~8 Ma."--Leaves v-vii.