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 sequencesfive giga, 12 mega, 25 1st order, 68 2nd order and over 100 3rd order ones as its basic skeleton. Using the developed grid of sequence timelines, the diverse interdisciplinary geological manifestations on the broad tectonostratigraphically homogenous supraregion 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.
Within GS-V (¬ 635 ma onward), the 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 macrofossils, 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 Tethys Himalaya 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, Central Indian basin and 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 of both academia and exploration industry in the field of Earth Sciences.
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Table of Contents
Section IGiga-sequences GS-I to GS-IV (Mostly Precambrian up to the base of Vendian)
- Introduction rationale, holistic composite chronicle, cratonic framework and outline of the presentation
- Pre-Archean and mostly Archean record
- Proterozoic excluding basal ~ 2500-2350 ma Paleoproterozoic and ~ 635-541 ma Vendian
Himachalian and Muthian mega-sequences
- Giga-sequence GS-V
- Muthian mega-sequence Silurian Intra Permian (~444-259 ma)
Late Permian onward geological span
- GSV-MSXI-NT Neotethyan mega-sequence (~259-61.6 ma)
- Mega-sequence GSV-MSXII-HL Himalayan mega-sequence (Cenozoic)
- Sequence stratigraphic context to hydrocarbon source rocks in the Indian Phanerozoic geological record
- Conclusions
Authors
Jai Krishna Independent Petroleum Geology Consultant, Former Professor and Head, Centre of Advanced Studies in Geology, Banaras Hindu University, Varanasi, Uttar Pradesh, India.Familiar with academic frameworks in the developed world, Prof. Krishna is an internationally acclaimed Geo-Science Educationist, University Teacher and Researcher with over five decades of experience of administering teaching, research, and mass awareness collaborative programs in Earth Sciences. Over the last five decades, he has published about 100 research papers inclusive in NATURE, chaired conferences, delivered invited lectures, realized collaborative researches during his umpteen stays across the globe in over 60 reputed Geo-Science institutions of the Americas, Europe, Asia, Africa, Arabia, and Australia. Formally relinquishing the Banaras Hindu University in 2011 as Professor and Head of its Centre of Advanced Studies in Geology, he has even more actively and passionately carried forward his academic pursuits. Prof. Krishna in 2017 authored--The Indian Mesozoic Chronicle: Sequence Stratigraphic Approach published by SPRINGER. Enthused with response and support from a large cross-section that the book received, Prof. Krishna, now presents unto the Geo-Science community across the world his fresh sequence stratigraphy-based venture with yet larger canvass and time-span--The Indian Geological Sequences: Salient Features and Major Events--brought out by ELSEVIER as an innovative high-resolution insight into the integrative understanding of the geodynamic evolution of the Gondwanian Tethyan Margin from Arabia to Australia with focus on the Indian subcontinent.
