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Spreading history of the Arabian Sea: Some new constraints

DRS at CSIR-National Institute of Oceanography

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Title Spreading history of the Arabian Sea: Some new constraints
 
Creator Chaubey, A.K.
Bhattacharya, G.C.
Murty, G.P.S.
Desa, M.
 
Subject seafloor spreading
magnetic anomalies
fracture zones
 
Description Based on a new identification of magnetic anomalies, additional constraints are provided on the two episodes of spreading history of the Arabian Sea. Commencing at A27, the older phase ended at A21 and sprading of the younger phase started shortly before the formation of All. The hiatus between these spreading spisodes, characterizEd. by a magnetic quiet zone., was much shorter (18 x 10 sup(6) yr) than previously believed. After spreading restarted, the younger phase continued at a very slow rate (0.7 cm/yr) till anomaly 6A. This rate increased between anomalies 5C and 6A and the spreading continued to the present at about 1.2 cm/yr. The data also enabled identification of a new NE-SW trending fracture zone, which right laterally offsets the entire magnetic anomally sequences 1 through 11 across the Carlsberg Ridge by about 50 km
 
Date 2009-05-06T10:47:02Z
2009-05-06T10:47:02Z
1993
 
Type Journal Article
 
Identifier Marine Geology, Vol.112; 343-352p.
http://drs.nio.org/drs/handle/2264/2843
 
Language en
 
Rights Copyright [1993]. 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.
 
Publisher Elsevier