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Author: M. Ramakrishnan
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 512
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Author: M. Ramakrishnan
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 512
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Book Description
Author: Jai Krishna
Publisher: Elsevier
ISBN: 0128232234
Category : Science
Languages : en
Pages : 658
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Book Description
Indian Geological Sequences: Salient Features and Major Events focuses on the first ever differentiation of the entire Indian record into a five tier hierarchical succession of geological sequences – five giga to 12 mega to 25 1st order to 68 2nd order to over 100 3rd order ones as its basic skeleton. Using the developed grid of sequence timelines, the diverse inter-disciplinary geological manifestations on the broad tectono-stratigraphically homogeneous supra-region of GTM (Gondwanian Tethyan Margin from Arabia to Australia) have been mutually integrated towards chronicling of events with precision never ever realized earlier. The giga-sequences GS-I to GS-IV comprising eight mega-sequences MS-I to MS-VIII deal with the Precambrian in brief. GS-V (¬ 635 ma onward) MS-IX (¬ 635-444 ma) and MS-XII (¬ 61.6 onward) include orogenies while MS-X (¬ 444-259 ma) and MS-XI (¬ 259-61.6 ma) are dominated by dismemberment tectonics. The prime focus is on the correlation of events across scores of sedimentary basins from outcrop to subsurface, onshore to offshore, marine to non-marine, shallow to deep water, plant to animal, micro to macro-fossils, and Proto-Paleo-Neotethys to Indian Ocean. Among the major Phanerozoic events time precised are the ¬ 500 ma Acantha Zone mega MFS accretion of the then alien TH to the Indian margin, and the ¬ 50 ma P8 Zone mega MFS impingement of India on Asia while the important dismemberment events include the ¬ 159 ma late Middle Oxfordian Orientalis Zone Schilli Subzone 1st order MFS initiation of the Indian Ocean which culminated in steps with oceanic separation of Sri Lanka from Antarctica at the ¬ 107 ma early Middle Albian Dentatus Zone mega MFS, ¬ 90 ma 1st order SB initiation of separation of Madagascar so also of Mascaranes basin, NER, Central Indian basin, Wharton basin, separation of Greater Seychelles from India at the ¬ 64.5 ma intra Danian 2nd order Quadratus Zone MFS and ¬ 24 ma Complanata Zone MFS thrusting due south of Greater Himalaya upon Lesser Himalaya. Indian Geological Sequences: Salient Features and Major Events is a valuable reference for researchers and scientists in the field of Earth Sciences. Relates multi-dimensional geological events of one region to another in a vast supra-region through precisely dated sequence timelines Links macro- and micro-evolutionary advent and extinction events to macro- and micro-geological events Includes multidisciplinary data sources, from sedimentological, geochemical, and geophysical records
Author: O.P. Mathur
Publisher: Scientific Publishers
ISBN: 9387869490
Category : Science
Languages : en
Pages : 207
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Book Description
The book is in the form of a ready reference. The subject matter of stratigraphy is full of names of formations, groups, etc. At times when we need to know about a certain formation for which we do not know the exact stratigraphic position, then we have to search the entire book, page by page, which becomes quite irritating and time consuming. To overcome this problem, the idea of arranging the different formations in an alphabetic order occurred to the author. During this process it was seen that many small formations, which are otherwise important, do not get their due representation, because they lie in company or association with much larger formations. Otherwise also stratigraphy is nothing but an orderly and chronological arrangement of different formations. In other words, we can say that stratigraphy is a language by itself, where different formations are its words. Same is the case with large number of fossils occurring in different formations. In the usual literature on the subject, it is practically impossible to find in what formation or formations a particular fossil occurs and to which fossil group it belongs. Alphabetical arrangement of fossils as shown in the list of fossils will help students and scholars to persue their task in an easier and quicker way. To arrange such a large number of fossils in an alphabetical order and to find their fossil groups was really a tough job. Still the author does not claim that all the formations and fossils occurring in the Indian stratigraphy are included in this book, and it cannot be the last word on the subject. This is more true in case of fossils, where unlimited literature is available.
Author: S.K. Shah
Publisher: Scientific Publishers
ISBN: 9387307999
Category : Science
Languages : en
Pages : 159
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Book Description
‘Historical Geology of India’ is a text book for graduate and post-graduate students of geology, geophysics and other earth sciences for Indian Universities. It also caters to the universities of USA, UK, Australia, New Zealand and Canada as one or two credit courses on regional studies are included in the curriculum. Besides it can be useful to professional geologists and geophysicists working on various projects in India. The book has been specially designed to cover the course content of major Indian Universities and the approved syllabi of the University Grants Commission. This book has not been written in the classical style of what is where and when was it formed; instead there has been an attempt to base the entire history on the time control as available from latest data on high resolution stratigraphy through fossil content, radiometric dating and palaeomagnetic studies. There is a special focus on the tectonic history of the entire subcontinent through time from Precambrian times to present day.
Author: Geological Survey of India
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Geological Survey of India
Publisher:
ISBN:
Category : Earthquakes
Languages : en
Pages : 264
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Book Description
Includes the Annual report of the Geological Survey of India, 1867-
Author: Geological Survey of India
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 726
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Book Description
Author: K.S. Valdiya
Publisher: Springer
ISBN: 3319250299
Category : Science
Languages : en
Pages : 945
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Book Description
This book presents in a concise format a simplified and coherent geological-dynamical history of the Indian subcontinent (including Sri Lanka, Bangladesh, Myanmar, Southern Tibet and Pakistan). Encompassing a broad array of information related to structure and tectonics, stratigraphy and palaeontology, sedimentation and palaeogeography, petrology and geochemistry, geomorphology and geophysics, it explores the geodynamic developments that took place from the beginning around 3.4 billion years ago to the last about 5,000 years before present. Presented in a distilled form, the observations and deductions of practitioners, this book is meant for teachers, researchers and students of geology, geophysics and geomorphology and practitioners of earth sciences. A comprehensive list of references to original works provides guidance for those seeking further details and who wish to examine selected problems in depth. The book is illustrated with a wealth of maps, cross sections and block diagrams — all simplified and redesigned.
Author: Geological Survey of India
Publisher:
ISBN:
Category : Corundum
Languages : en
Pages : 102
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Book Description
Author: Geological Survey of India
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 456
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Book Description