Deep Continental Structure of India

Deep Continental Structure of India PDF Author: T. M. Mahadevan
Publisher:
ISBN:
Category : Earth
Languages : en
Pages : 606

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Book Description

Deep Continental Structure of India

Deep Continental Structure of India PDF Author: T. M. Mahadevan
Publisher:
ISBN:
Category : Earth
Languages : en
Pages : 606

Get Book Here

Book Description


Structure and Tectonics of the Indian Continental Crust and Its Adjoining Region

Structure and Tectonics of the Indian Continental Crust and Its Adjoining Region PDF Author: Harish C Tewari
Publisher: Elsevier
ISBN: 0128136863
Category : Science
Languages : en
Pages : 268

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Book Description
Structure and Tectonics of the Indian Continental Crust and Its Adjoining Region: Deep Seismic Studies, Second Edition, collates essential data from seismic studies of Earth's crust across India, offering an essential understanding of the tectonic development of the Indian subcontinent. Seismic studies have been carried out in various parts of India since 1972, recording crust-related seismic data for determination of velocity-depth configuration and determination of structural patterns. The book examines the details of these studies, including their synthesis and global applications. The book presents both background and applications in one cohesive volume for researchers and students of geophysics and geology. - Presents all the information and metadata of the Indian continental crust and its neighbouring regions in a cohesive way - Provides basic knowledge of the Indian subcontinent to support the discussion of seismic studies related to crustal structure - Includes all new chapter covering global applications and synthesis of the findings and observations

The Lithosphere Beneath the Indian Shield

The Lithosphere Beneath the Indian Shield PDF Author: Ashoka G. Dessai
Publisher: Springer Nature
ISBN: 3030529428
Category : Science
Languages : en
Pages : 273

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Book Description
This book explores the geotectonic evolution of the lithosphere beneath the Indian Shield, which comprises a collage of cratons variously bounded by mobile belts and palaeo-rifts. The lithosphere beneath these is fairly thin compared to other cratons worldwide, petrologically varied and shows considerable variation in thickness with depth both intra-craton and among cratons. Moreover, it has been subjected to the influence of repeated magmatic episodes from Proterozoic to Palaeocene, which have variously impacted different parts of the shield. The thermotectonic influence on constituent cratons is variable depending on the evolutionary history. This book discusses the impact of successive tectonomagmatic events on the evolution of the deep crust and shallow mantle, and their Phanerozoic modification as gleaned through the xenolith window. The book provides a petrotectonic perspective on the deep crust and shallow mantle from direct samples brought up as xenoliths of deep lithologies, and offers a comprehensive overview for students, researchers, academics and professionals, integrating the results of petrological studies of deep lithologies and geophysical investigations to (i) shed light on the physico-chemical and thermal structure of the lithosphere from an array of geotectonic settings and (ii) gain insights into the spatio-temporal evolution of the Indian Shield. An in-depth guide critical thinking on the complex issue of mantle differentiation, magmatism, lithosphere modification and crustal growth over time, the book allows readers to gain a better understanding of the processes that affect the lithosphere and shape the crust on which we live.

Composition, Deep Structure and Evolution of Continents

Composition, Deep Structure and Evolution of Continents PDF Author: R.D. van der Hilst
Publisher: Elsevier
ISBN: 0080529453
Category : Science
Languages : en
Pages : 355

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Book Description
The ensemble of manuscripts presented in this special volume captures the stimulating cross-disciplinary dialogue from the International Symposium on Deep Structure, Composition, and Evolution of Continents, Harvard University, Cambridge, Massachusetts, 15-17 October 1997. It will provide an update on recent research developments and serve as a starting point for research of the many outstanding issues.After its formation at mid-oceanic spreading centers, oceanic lithosphere cools, thickens, and subsides, until it subducts into the deep mantle beneath convergent margins. As a result of this continuous recycling process oceanic lithosphere is typically less than 200 million years old (the global average is about 80 Myr). A comprehensive, multi-disciplinary study of continents involves a wide range of length scales: tiny rock samples and diamond inclusions may yield isotope and trace element signatures diagnostic for the formation age and evolution of (parts of) cratons, while geophysical techniques (e.g., seismic and electromagnetic imaging) constrain variations of elastic and conductive properties over length scales ranging from several to many thousand kilometers. Integrating and reconciling this information is far from trivial and, as several papers in this volume document, the relationships between, for instance, formation age and tectonic behavior on the one hand and the seismic signature, heat flow, and petrology on the other may not be uniform but may vary both within as well as between cratons. These observations complicate attempts to determine the variations of one particular observable (e.g., heat flow, lithosphere thickness) as a function of another (e.g., crustal age) on the basis of global data compilations and tectonic regionalizations.Important conclusions of the work presented here are that (1) continental deformation, for instance shortening, is not restricted to the crust but also involves the lithospheric mantle; (2) the high wavespeed part of continental lithospheric mantle is probably thinner than inferred previously from vertically travelling body waves or form global surface-wave models; and (3) the seismic signature of ancient continents is more complex than expected from a uniform relationship with crustal age.

Basement Tectonics 8

Basement Tectonics 8 PDF Author: Mervin J. Bartholomew
Publisher: Springer Science & Business Media
ISBN: 9401116148
Category : Science
Languages : en
Pages : 729

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Book Description
The 8th International Conference on Basement Tectonics was held in Butte, Montana, August 8-12,1988. Historically, basement tectonics conferences have focused on such topics as reactivation of faults, the influence of basement faults on metallogeny and hyrocarbon accumulation, and the use of geophysical and remote sensing techniques to interpret subsurface and surface geology. The 8th Conference diverged from past conferences in that a unifying theme was selected. Because ancient major terrane or cratonic boundaries are often postulated to be fault zones which are subsequently reactivated, the conference was organized to examine all aspects of ancient continental margins and terrane boundaries and to compare younger (Mesozoic) ones, about which more is known, with older (Paleozoic and Precambrian) ones. Moreover, because the 8th Conference was held in the northwestern United States, a greater emphasis was placed on the Mesozoic margin of western North America and the North American shield. The seven oral sessions and four poster sessions all dealt with aspects of the conference theme: characterization and comparison of ancient continental margins. The organizers extend their thanks to those individuals who graciously consented to serve as moderators for the oral sessions: John M. Bartley, Mark S. Gettings, M. Charles Gilbert, John M. Guilbert, Donald W. Hyndman, William P. Leeman, Robert Mason, and A. Krishna Sinha. The program with abstracts volume was prepared by S. E. Lewis and M. J. Bartholomew.

Metamorphism and Crustal Evolution

Metamorphism and Crustal Evolution PDF Author: Ram Swaroop Sharma
Publisher: Atlantic Publishers & Dist
ISBN: 9788126904365
Category : Science
Languages : en
Pages : 416

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Book Description
This Book Is In Commemoration Of The Life And Work Of Professor R.S. Sharma, An Eminent Metamorphic Petrologist And Mineralogist. It Incorporates The Latest Developments In The Field Of Metamorphic Petrology. The Volume Is Divided Into Five Sections, Namely Metamorphism, Fluid Processes, Himalayan Metamorphism, Uhp/ Uht Metamorphism, And Geochronology & Geochemistry. The Book Would Be Of Great Interest To All Geoscientists Concerned With Metamorphic Processes And Crustal Evolution.The Main Topics Covered In The Book Include:The Granulite Facies, Crustal Melting, And Prograde And Retrograde Phase Equilibria In Metapelites At The Amphibolite To Granulite Facies Transition Tim E. Johnson And M. Brown; Evolution Of Early Proterozoic Metamorphism Within Tim-Yastrebovskaya Paleorift, Voronezh Crystalline Massif, East-European Platform: Metapelite Systematics, Phase Equilibrium, And P-T Conditions Tatyana N. Polyakova, Konstantin A. Savko, Vyacheslav Yu. Skryabin; Metamorphosed Carbonate-Evaporitic Rocks At Transition Of High-Pressure Amphibolite/Eclogite Facies Conditions: A Case Study From The Sare Sang Lapis-Lazuli Deposit (Afghanistan) Shah Wali Faryad; Petrogenesis And Evolution Of Peña Negra, An Anatectic Complex In The Spanish Central System M. Dolores Pereira Gómez; Polymetamorphism In The Archaean Gneiss Complex Of Shivpura Gyangarh, District Bhilwara, Rajasthan H. Thomas; Ibc Granulite In Clockwise Pressure-Temperature Regime: A Case From The Orissa Sector Of Eastern Ghats Mobile Belt S.C. Patel; Carbonates In Feldspathic Gneisses From The Granulite Facies: Implications For The Formation Of Co2-Rich Fluid Inclusions William Lamb; Growth And Exhumation Of The Lower Crust Of The Kohistan Arc, Nw Himalayas T. Yoshino And T. Okudaira; Evidence Of Upper Amphibolite Facies Metamorphism From Almora Nappe, Kumaun Himalayas Mallickarjun Joshi And A.N. Tiwari; Is Muscovite In The Mandi Granite Primary? A Guide To Distinction Between The Lower Paleozoic And Tertiary Granites Of The Himalayas S. Nag, S. Sengupta And P.K. Verma; Modeling Of P-T-T Paths Constrained By Mineral Chemistry And Monazite Dating Of Metapelites In Relationship To Mct Activity In Sikkim, Eastern Himalayas Chandra S. Dubey, E.J. Catlos And B.K. Sharma; Uhp Metamorphism And Continental Subduction/Collision J.G. Liou, T. Tsujimori, I. Katayama And S. Maruyama; Uht Metamorphism And Continental Orogenic Belts A. Mohan, I.N. Sharma And P.K. Singh; Single Zircon Dating Of Hypersthene-Bearing Granitoid From Balaram-Abu Road Area, Southern Part Of The Aravalli Mountains, Nw India: Implications For Malani Magmatism Related Thermal Event A.B. Roy, Alfred Kröner, Vivek Laul And Ritesh Purohit; Geochemistry And Petrogenesis Of The High Grade Granulites From Kodaikanal, South India D. Prakash And H. Thomas; The Lower Crust Of The Indian Shield: Its Characteristics And Evolution T.M. Mahadevan

Continental Shelves of the World

Continental Shelves of the World PDF Author: F.L. Chiocci
Publisher: Geological Society of London
ISBN: 1862396868
Category : Science
Languages : en
Pages : 343

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Book Description
The world's continental shelves are the sites of vast resources of food, energy and minerals, the exploitation of which is continuously increasing. Fluctuating global sea levels throughout the Quaternary period produced multiple transgressive and regressive cycles that profoundly affected and shaped these shelves. The complex interactions among climate, sea level, tectonics, oceanography and sediment input have formed distinctive sediment packages on each shelf and provide a guide to the interpretation of older shelf sequences throughout the geological record. This Memoir compiles studies on 23 selected shelves from all the continents, focusing on their evolution and examining the patterns of sedimentation during the past approximately 125 000 years. In addition to providing basic background information for each area, the chapters consider specific aspects of continental shelf research, from seismic stratigraphy to geomorphology, from palaeoceanography to palaeo sea-level reconstruction and from palaeontology to geochemistry.

Microearthquake Seismology and Seismotectonics of South Asia

Microearthquake Seismology and Seismotectonics of South Asia PDF Author: J.R. Kayal
Publisher: Springer Science & Business Media
ISBN: 1402081804
Category : Science
Languages : en
Pages : 522

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Book Description
This volume is the outcome of about 30 years of research in the field of earthquake seismology in various parts of South Asia. It comprehensively deals with topics raning from plate tectonics to seismic waves in general. State-of-the-art techniques in earthquake location/relocation, fault plane solution, waveform inversion, seismic tomography, fractals etc. are discussed, and the results are interpreted in terms of seismic source processes in the region.

Treatise on Geophysics

Treatise on Geophysics PDF Author:
Publisher: Elsevier
ISBN: 0444538038
Category : Science
Languages : en
Pages : 5604

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Book Description
Treatise on Geophysics, Second Edition, is a comprehensive and in-depth study of the physics of the Earth beyond what any geophysics text has provided previously. Thoroughly revised and updated, it provides fundamental and state-of-the-art discussion of all aspects of geophysics. A highlight of the second edition is a new volume on Near Surface Geophysics that discusses the role of geophysics in the exploitation and conservation of natural resources and the assessment of degradation of natural systems by pollution. Additional features include new material in the Planets and Moon, Mantle Dynamics, Core Dynamics, Crustal and Lithosphere Dynamics, Evolution of the Earth, and Geodesy volumes. New material is also presented on the uses of Earth gravity measurements. This title is essential for professionals, researchers, professors, and advanced undergraduate and graduate students in the fields of Geophysics and Earth system science. Comprehensive and detailed coverage of all aspects of geophysics Fundamental and state-of-the-art discussions of all research topics Integration of topics into a coherent whole

THE DYNAMIC EARTH SYSTEM, Fourth Edition

THE DYNAMIC EARTH SYSTEM, Fourth Edition PDF Author: PATWARDHAN, A. M.
Publisher: PHI Learning Pvt. Ltd.
ISBN: 9388028740
Category : Science
Languages : en
Pages : 598

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Book Description
Addressed to the undergraduate and postgraduate students pursuing studies in the broad interdisciplinary field of Earth Science, this thoroughly revised book, in its Fourth Edition, is aimed at facilitating the comprehension between the pre-planetary history and the subsequent geological processes of the Earth system. This is done keeping in mind the current interest in exoplanets and the evolution of the life supporting crustal composition of the Earth, much different from that of the other planets, in terms of the Earth's internal heat, density distribution and the strong magnetic field due to the dominant presence of metallic Fe in its core. The new edition draws the attention of the reader to the different surface gravity features and the internal compositional structures of the Earth, Moon and the Sun acquired during the Hadean. Examples of lithospheric movements, rifting, subduction and the continued mantle-crust interaction from Indian and Southeast Asian geology would bring the readers close to interlinking these tectonic processes to the genesis of igneous, sedimentary and metamorphic rocks as well as to the episodes of mineralizations. Emphasizing these dynamic processes, the text focuses on the constitution of oceans, the causes of mass extinctions and the evolution of life forms, the biogeochemical cycles of elements, and also, on the life protecting ozone layer of the stratosphere, all unique to the Earth System. The student is sensitized towards the natural hazards of frequent volcanic eruptions, earthquakes, tsunamis, floods, and climate change besides explicating the threats posed by global warming, atmospheric and hydrosphere pollution, caused by the industrial emanations and indiscrete waste disposal. KEY FEATURES • Each chapter is replete with examples, illustrations, tables and figures to make reading more fruitful and enriching. • Chapter-end summary helps in recapitulation of the concepts discussed. • Additional Reading provided at the end of each chapter directs the readers to the vast source of information. NEW TO THE FOURTH EDITION Considering the growing global interest in locating a habitable exoplanet like the Earth, and in exploring the Moon and the Mars, the present edition thoroughly updates the information about • the geochemical processes, unique to the Earth System, that gave rise to the life supportive crust, oceans and the atmosphere. • the role played by plate tectonics in forming the igneous, sedimentary and metamorphic rocks, mineral deposits, and also, in the evolution of life. • the geo-environmental hazards of volcanic eruptions, earthquakes, floods, tsunamis, droughts and desertification. • the growing adoption of solar, hydro, wind and nuclear energy in power generation, and in management of clean environment. TARGET AUDIENCE • M.Sc. (Geology, Applied Geology, Geoinformatics, Geophysics, Geochemistry, Geography, Earth Science, and Environmental Science) • B.Sc. (Geology, Applied Geology)