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dc.contributor.authorIshfaq, A.M.
dc.contributor.authorPattan, J.N.
dc.contributor.authorMatta, V.M.
dc.contributor.authorBanakar, V.K.
dc.date.accessioned2013-06-17T06:36:30Z
dc.date.available2013-06-17T06:36:30Z
dc.date.issued2013
dc.identifier.citationJournal of the Geological Society of India, vol.81(5); 2013; 647-654
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/4305
dc.description.abstractA 4.1m long sediment core from the eastern Arabian Sea is studied using multiple geochemical proxies to understand the variation of productivity and terrigenous matter supply during the past 100 ka. The temporal variation in element concentration and fluxes of CaCO3, organic carbon (C sub(org)) and Barium excess (Ba sub(exc)), together, in general indicate a higher productivity during the cold climate and highest during the Last Glacial Maximum in particular. This cold climate-increased productivity coupling may be attributed to the shoaling of nutricline due to enhanced convective mixing resulting from the intensified winter monsoon. Increased linear sedimentation rates and fluxes of Al, Fe, Mg, Ti, Cr, Cu, Zn, and V during the cold period also suggest increased in put of terrigenous matter supporting intensified winter winds. However, the presence of large abundance of structurally unsupported elemental content (e.g. Mg-86%, Fe-82% and Al-53%) indicate increased input of terrigenous material which was probably enhanced due to intense winter monsoon.
dc.language.isoen
dc.publisherGeological Society of India
dc.rightsCopyright [2013] the Geological Society of India. 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.
dc.subjectsediment composition
dc.subjectcore analysis
dc.subjectterrigenous sediments
dc.titleVariation of paleo-productivity and terrigenous input in the eastern Arabian Sea during the past 100 ka
dc.typeJournal Article


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