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Physical and elastic properties of marine sediments off Bombay, India

DRS at CSIR-National Institute of Oceanography

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Title Physical and elastic properties of marine sediments off Bombay, India
 
Creator SubbaRaju, L.V.
Ramana, Y.V.
 
Subject Marine Technology
physical properties
continental shelves
sediments
ISW, India, Maharashtra, Bombay
 
Description Keeping in view the paucity of information as to the nature of the marine sediments from the continental shelf adjoining the Indian subcontinent, a number of shallow seismic surveys were carried out, nearshore and offshore Bombay between 18 degrees 45'N and 21 degrees 00N. Representative core samples preserving their natural state were also retrieved from the region in the water depths ranging from 5 to 70 m for the determination of physical properties in the laboratory. Data on the physical, acoustic, and elastic properties of the sediment cores are reported for the first time. Useful individual least-squares relations are presented for acoustic impedance, reflection coefficient, and bulk modulus against density; for the dependence of rigidity and bulk moduli on the constrained modulus; for the association between impedance and field sediment velocity against P-velocity; and for rigidity against Poisson's ratio. Results indicate that the bulk modulus and Young's modulus are higher for silty clay and clayey silt samples than for the clay samples. Similarly, the acoustic impedance, reflection coefficient, and constrained modulus of silty clay and clayey silt are also higher than clay. The results are found to be comparable to the North Atlantic and Bay of Bengal sediments
 
Date 1995-06-24T10:01:22Z
2017-09-29T13:48:20Z
1995-06-24T10:01:22Z
2017-09-29T13:48:20Z
1986
 
Type Journal Article
 
Identifier Marine Geotechnology, vol.6; 1986; 359-375
1064-119X
http://drs.nio.org/drs/handle/2264/6230
 
Language en
 
Relation Mar Geotechnol
SCI
 
Publisher Springer