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Geophysical and geological surveys along the northeastern flank of Mount error, Northwestern Indian Ocean

DRS at CSIR-National Institute of Oceanography

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Title Geophysical and geological surveys along the northeastern flank of Mount error, Northwestern Indian Ocean
 
Creator Ramana, M.V.
Rajendraprasad, B.
Hansen, R.D.
 
Subject Geology and Geophysics
continental crust
sediments
seismic data
seamounts
gravity surveys
magnetic exploration
seismic reflection
bathymetry
geological surveys
geophysical surveys
geophysics
ISW, India, West Coast
 
Description Bathymetry, multichannel continuous seismic reflection, magnetic and gravity surveys and sampling were carried out over Mount Error in the northwestern Indian Ocean and along the northeastern flank of the seamount, to study the nature of its basement. Preliminary interpretation of the seismic data indicate a 330 ms sedimentary sequence over the summit of the mount and approximately 880 ms of sediments in the valley at the base. Analyses of magnetic and gravity fields over the northeastern flank of the seamount suggest an igneous basement consisting of lamprophyre occuring as a thin slab (sill). Further, the average bathymetric contour of 4500 m and the magnetic model studies suggest that the lower boundary of the magnetisation contrast perhaps coincides with the thickness of the continental crust below the seabed.
 
Date 1995-09-09T10:01:33Z
2017-09-29T13:48:10Z
1995-09-09T10:01:33Z
2017-09-29T13:48:10Z
1987
 
Type Journal Article
 
Identifier Marine Geology, vol.76; 1987; 153-162
0025-3227
http://drs.nio.org/drs/handle/2264/6043
 
Language en
 
Relation Mar Geol
SCI
 
Publisher Elsevier