Tectonics of the Eastern Continental Margin of India

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ISBN: 9788179934081
GTIN: 9788179934081
AuthorMurthy, K. S. R.
Pub Date01/03/2012
Country of OriginIndia
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Tectonics of the Eastern Continental Margin of India presents the different aspects of a passive margin such as its evolution, tectonics, and associated hazards, taking the Eastern Continental Margin of India (ECMI) as a case study. It discusses the passive margin and focuses on its origin, morphology, structure, and exploration potential; describes the major structural lineaments delineated from the geophysical data over the ECMI; and attempts to explain the geodynamic evolution of this passive margin. A preliminary estimate on the seismic hazards associated with ECMI is also presented in the book. Contents: INTRODUCTION Passive (Divergent) Continental Margins Active (Convergent) Continental Margins Transform Margins Characteristics of Passive Margins Exploration of Passive Margins Origin of the Indian Ocean and the Bengal Fan Evolution of the Eastern and Western Continental Margins of India Seismo-Tectonics of the Indian Subcontinent Peninsular or Stable Continental Region Seismicity Importance of Studies on Passive Margins The Eastern Continental Margin of India (ECMI): A Case Study EVOLUTION OF THE ECMI Introduction Qualitative Analysis of Geophysical Maps Structural Lineaments from Magnetic Data Support from Gravity Data Summary of Structural Lineaments over the ECMI Two-Stage Evolution of the ECMI Link-up with Gondwanaland Break-up 51 Some Ambiguities in the Proposed Theories on the Evolution 56 TECTONICS OF OFFSHORE BASINS Introduction Cauvery Offshore Basin Pre-Cambrian Mega Lineaments of Cauvery Basin Krishna Godavari Offshore Basin Land Ocean Tectonic Signatures of the Krishna Godavari Basin Mahanadi Offshore Basin HAZARDS ASSOCIATED WITH THE ECMI Introduction Puducherry Shelf, Tamil Nadu Coast Mahabalipuram Palar shelf, Tamil Nadu Coast Ongole Shelf, Andhra Coast Kakinada and Kalingapatnam Shelf, Andhra Coast Summary on the Seismic Hazard over the ECMI CONCLUSIONS Evolution of the ECMI Tectonics of Offshore Basins Seismic Hazards over the ECMI