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Tectonic reorganization in the Indian Ocean: Evidences from seafloor crenulations

DRS at CSIR-National Institute of Oceanography

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Title Tectonic reorganization in the Indian Ocean: Evidences from seafloor crenulations
 
Creator Kessarkar, P.M.
 
Subject bathymetric
Multibeam bathymetric data
magnetic anomalies
crustal accretion
 
Description Multibeam bathymetric data from seafloor area of 24,568 km constrained between magnetic anomaly 18 and anomaly 25 in the Central Indian Ocean Basin (CIOB) reveal presence of three types of seafloor lineaments. Deformation of seafloor across these lineaments, oriented in N-S, NW-SE and E-W directions, vary in time and space. A sharp change in nature and orientation of these seafloor lineaments, as well as of magnetic anomalies, occurs along 73~'E long., which appears to act as contact between older crust in the east (~6 56 Ma) to the younger crust on the west (~6 38 Ma). This sharp contact along the 73~'E long, probably suggests a structural discontinuity, reflecting variation in crustal accretion at the ridge crest in the past.
 
Date 2008-02-22T05:31:27Z
2008-02-22T05:31:27Z
1998
 
Type Journal Article
 
Identifier Current Science, Vol.74(5); 472-476p.
http://drs.nio.org/drs/handle/2264/967
 
Language en
 
Rights Copyright [1998]. It is tried to respect the rights of the copyright holders to the best of the knowledge. If it is brought to our notice by copyright holder that the rights are violated then the item would be withdrawn.
 
Publisher Current Science Association