Indian Geological Sequences

Salient Features and Major Events

Jai Krishna

• Publisher: Elsevier
• Year: 2024
• Print ISBN:
  9780128212707
• eBook ISBN:
  9780128232231
• Topic: Physical Sciences
• Subtopic: Geology & Earth Sciences

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

Table of contents

• Cover
• Front Matter
• Table of Contents
• Front Matter
• Copyright
• Dedication
• Contents
• List of figures
• List of field photos
• List of tables
• About the author
• Foreword
• Preface
• Acknowledgment
• Abbreviations
• List of Illustrations
• List of Tables
• Chapter 1 : Introduction – rationale, holistic composite chronicle, cratonic framework and outline of the presentation
• Chapter 2 : Pre-Archean and mostly Archean record
• Chapter 3 : Proterozoic excluding basal ∼2500–2350 ma Paleoproterozoic and ∼635–541 ma Vendian
• Chapter 4 : Giga-sequence GS-V
• Chapter 5 : Muthian mega-sequence Silurian – Intra Permian (∼444–259 ma)
• Chapter 6 : GSV-MSXI-NT Neotethyan mega-sequence (∼259–61.6 ma)
• Chapter 7 : Mega-sequence GSV-MSXII-HL Himalayan mega-sequence (Cenozoic)
• Chapter 8 : Sequence stratigraphic context to hydrocarbon source rocks in the Indian Phanerozoic geological record
• Chapter 9 : Conclusions
• Index
• A