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dc.contributor.authorValsangkar, A.B.
dc.contributor.authorBorole, D.V.
dc.contributor.authorShejwalkar, A.S.
dc.contributor.authorKalangutkar, N.G.
dc.contributor.authorFernandes, N.O.
dc.contributor.authorDias, C.C.
dc.date.accessioned2009-06-02T11:34:33Z
dc.date.available2009-06-02T11:34:33Z
dc.date.issued2009
dc.identifier.citationCurrent Science, vol.96(8); 1090-1099
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/3348
dc.description.abstractSix sediment cores from the Carlsberg Ridge (CR) were studied for elemental concentration, magnetic susceptibility (chi), grain size and clay mineral distribution, and sedimentation rate to decipher possible detrital and diagenetic contributions. The sediments were characterized by very low chi, moderate total organic carbon, high CaCO sub(3) content and high accumulation rate (3 cm/ kyr). Clay mineralogical and geochemical data suggest major continental source from the Arabian Sea, and very low Mn distribution, absence of tephra and characteristic magnetic signatures rule out volcanic or hydrothermal input. Consistent peaks around 10, 25, 45, 60 and 80 cm depth and high uranium are due to sedimentary diagenesis
dc.language.isoen
dc.publisherCurrent Science Association
dc.subjectCarbonate sediments
dc.subjectClay minerals
dc.subjectDetrital deposits
dc.subjectGrain size
dc.titlePotential diagenetic and detrital sources for calcareous sediments from the Carlsberg Ridge, Indian Ocean
dc.typeJournal Article


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