Elsevier

Tectonophysics

Volume 249, Issues 3–4, 30 September 1995, Pages 267-282
Tectonophysics

Research paper
Structure and tectonics of the southwestern continental margin of India

https://doi.org/10.1016/0040-1951(95)00020-NGet rights and content

Abstract

A NNW-SSE-trending graben in the inner shelf (40–60 m isobaths), a mid-shelf basement ridge (60–150 m isobaths), a shelf-margin basin (150–1000 m isobaths) and the Prathap Ridge Complex in the slope (1000–2000 m isobaths) extend as linear features along the southwestern continental margin of India between 12°20′N and 15°00′N. The basic structural framework of the margin seems to be influenced by the pre-existing Precambrian structural fabric of the continent. The mid-shelf basement ridge and the Prathap Ridge Complex are interpreted as manifestation of the rift-phase volcanism when India separated from Madagascar around 84 Ma.

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