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    Offshore structural trends from magnetic data over Cauvery Basin, east coast of India

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    J_Geol_Soc_India_46_269.pdf (270.9Kb)
    Date
    1995
    Author
    Subrahmanyam, A.S.
    Lakshminarayana, S.
    Chandrasekhar, D.V.
    Murthy, K.S.R.
    Rao, T.C.S.
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    Abstract
    Detailed analysis of magentic and bathymetric data over shelf and slope regions of Cauvery Basin, east coast of India, between Mahabalipuram and Vedaranyam demarcated three major offshore lineaments trending N-S, NE-SW and E-W. The N-S lineation has been interpreted as due to dyke intrusions. NE-SW lineament reflects the offshore extension of a major basement depression, viz, the Pondicherry depression. E-W lineation, south of Proto Novo reveals a basement high suggesting the seaward extension of Kumbakonam ridge within the Pondicherry depression. The present analysis gives mosaic of a deep seated graben block flanked by rift related volcanic intrusives over the shelf region of the basin
    URI
    http://drs.nio.org/drs/handle/2264/2353
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