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Seafloor spreading magnetic anomalies in the southeastern Arabian Sea

DRS at CSIR-National Institute of Oceanography

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Title Seafloor spreading magnetic anomalies in the southeastern Arabian Sea
 
Creator Chaubey, A.K.
Bhattacharya, G.C.
Rao, D.G.
 
Subject magnetic anomalies
seafloor spreading
fracture zones
volcanism
 
Description Study of closely spaced new marine magnetic profiles in the southeastern Arabian Sea has enabled fairly confident identification of E-W trending linear magnetic anomalies 24 through 20. These magnetic lineations are consistently right laterally offset along numerous fracture zones and extend eastwards up to the base of the western slopes of the Laccadive Ridge. Obliteration of magnetic lineations further eastward is attributed to the emplacement of volcanic material of the Laccadive Ridge over the pre-existing oceanic crust. DSDP Site 221 is observed to be located on the reversely magnetized oceanic crust between anomalies 22 and 21 which provide a reliable age constraint (48 Myr) for the oceanic crust at this site. The presence of additional unidentifiable normal magnetic anomalies suggests a relatively complex spreading pattern (ridge jump?) in the vicinity of the Laccadive Ridge during the interval of anomalies 24 and 23
 
Date 2009-01-25T06:16:59Z
2009-01-25T06:16:59Z
1995
 
Type Journal Article
 
Identifier Marine Geology, Vol.128; 105-114p.
http://drs.nio.org/drs/handle/2264/2384
 
Language en
 
Rights Copyright [1995]. 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