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Ferrobasalts from the Central Indian Ocean Basin

DRS at CSIR-National Institute of Oceanography

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Title Ferrobasalts from the Central Indian Ocean Basin
 
Creator Iyer, S.D.
Mukhopadhyay, R.
Popko, D.C.
 
Subject geochemistry
basalts
seafloor spreading
magnetic anomalies
magma
 
Description The occurrence of ferrobasalts recovered from the Central Indian Ocean Basin crust generated at the Southeast Indian Ridge during a phase of moderate to fast spreading accretion (approx 110-190 mm/yr, full rate) is reported. FeO (13-19%), and TiO sub(2) (2.27-2.76%), poor in olivine and MgO (3.44-6.20%), and associated with topographic highs and increased amplitude magnetic anomalies corresponding to chrons A25 and A24. It is suggested that the secondary eruptions from ancient N-MORB magma, which may have been trapped at a shallow depth in a horizon of neutral buoyancy, could have produced the ferrobasalts
 
Date 2009-01-10T11:07:08Z
2009-01-10T11:07:08Z
1999
 
Type Journal Article
 
Identifier Geo-marine letters, Vol.18; 297-304p.
http://drs.nio.org/drs/handle/2264/1763
 
Language en
 
Rights Copyright [1999]. 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 Springer