Record Details

Evidence for seafloor spreading in the Laxmi Basin, northeastern Arabian Sea

DRS at CSIR-National Institute of Oceanography

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Title Evidence for seafloor spreading in the Laxmi Basin, northeastern Arabian Sea
 
Creator Bhattacharya, G.C.
Chaubey, A.K.
Murty, G.P.S.
Srinivas, K.
Sarma, K.V.L.N.S.
Subrahmanyam, V.
Krishna, K.S.
 
Subject Geology and Geophysics
seafloor spreading
magnetic anomalies
tectonics
bathymetry
gravity anomalies
ISW, Arabian Sea
 
Description Marine magnetic anomaly data from the Laxmi Basin for the first time reveal the presence of fairly correlatable NNW-trending magnetic lineations. These magnetic lineations are symmetric about a central negative magnetic anomaly and the axis of symmetry coincides with a characteristic short-wavelength free-air gravity low. The anomalies are interpreted as representing a two-libed seafloor spreading sequence which can be be equated to the A28-A33 interval of the geomagnetic polarity reversal timescale. These results suggest that the Laxmi Basin is underlain by an oceanic crust. Evidence of seafloor spreading in this basin possibly implies a pre-A27 spreading episode in the evolutionary history of the Arabian Sea.
 
Date 1994-08-31T10:06:27Z
2017-09-30T01:55:41Z
1994-08-31T10:06:27Z
2017-09-30T01:55:41Z
1994
 
Type Journal Article
 
Identifier Earth and Planetary Science Letter, vol.125; 1994; 211-220
0012-821X
http://drs.nio.org/drs/handle/2264/7365
 
Language en
 
Relation Earth Planet Sc Lett
SCI
 
Publisher Elsevier