ICAR Research Data Repository for Knowledge Management
Gravity anomalies and crustal structure of the western continental margin off Goa and Mulki, India
DRS at CSIR-National Institute of Oceanography
View Archive Info| Field | Value | |
| Title |
Gravity anomalies and crustal structure of the western continental margin off Goa and Mulki, India
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| Creator |
Subrahmanyam, V.
Rao, D.G. Ramprasad, T. KameshRaju, K.A. Rao, M.G. |
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| Description |
Bathymetric and gravity data totalling 2000 line kilometres on the continental margin off Goa and Mulki, India, have been studied and prominent NNW-SSE and ENE-WSW trending free-air gravity anomalies varying between -60 + 25 mGal have been identified. Using constraints from seismic refraction and reflection and well log results the thicknesses of the layers are estimatEd. by computing two-dimensional crustal structure models for the free-air gravity anomalies. The study suggests that (1) there are three layers varying in thickness from 0.5 to 4.0 km, 0.5 to 12.0 km and from 14.0 to 26.0 km with densities of 2.3, 2.6 and 2.9 g/cm3 which are interpreted as sedimentary, granitic and mafic/basaltic layers respectively, (2) there is a maximum thickness of 4.0 km of sediment over the shelf margin basin, and (3) the Moho occurs at a depth of 24-30 km.
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| Date |
2009-05-12T10:24:09Z
2009-05-12T10:24:09Z 1991 |
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| Type |
Journal Article
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| Identifier |
Marine Geology, Vol.99; 247-256p.
http://drs.nio.org/drs/handle/2264/3246 |
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| Language |
en
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| Rights |
Copyright [1991]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
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| Publisher |
Elsevier
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