Journal of Geological Society of India (Online archive from Vol 1 to Vol 78)

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A Note on the Occurrence of Ortho-Amphibolites on the Inner Shelf off Bhatkal, West Coast of India


Affiliations
1 National lnstitute of Oceanography, Dona Paula, Goa 403004, India
     

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The total magnetic intensity map of the area shows that the inner shelf to a depth of 50m is marked by a zone of magnetic closures. The occurrence of offshore ortho-amphibolites and the qualitative interpretation of the magnetic map indicate the extension of onshore rocks (or the amphibolites and associated rocks of Precambrian (?) and intrusions of Deccan Trap age) under a thin cover of sediments to the offshore to a depth of about 50 m.
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  • A Note on the Occurrence of Ortho-Amphibolites on the Inner Shelf off Bhatkal, West Coast of India

Abstract Views: 211  |  PDF Views: 2

Authors

H. N. Siddiquie
National lnstitute of Oceanography, Dona Paula, Goa 403004, India
S. M. Karisiddaiah
National lnstitute of Oceanography, Dona Paula, Goa 403004, India
V. Subrahmanyam
National lnstitute of Oceanography, Dona Paula, Goa 403004, India

Abstract


The total magnetic intensity map of the area shows that the inner shelf to a depth of 50m is marked by a zone of magnetic closures. The occurrence of offshore ortho-amphibolites and the qualitative interpretation of the magnetic map indicate the extension of onshore rocks (or the amphibolites and associated rocks of Precambrian (?) and intrusions of Deccan Trap age) under a thin cover of sediments to the offshore to a depth of about 50 m.