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dc.contributor.authorNaidu, P.D.
dc.contributor.authorSingh, A.D.
dc.contributor.authorGaneshram, R.S.
dc.contributor.authorBharti, S.K.
dc.date.accessioned2014-06-11T11:31:44Z
dc.date.available2014-06-11T11:31:44Z
dc.date.issued2014
dc.identifier.citationGeochemistry, Geophysics, Geosystems, vol.15(1); 2014
dc.identifier.otherno
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/4549
dc.description.abstractWe present high-resolution records of aragonite contents and pteropods abundance in two sediment cores (SK 17 and MD 76–131) within the Oxygen Minimum Zone (OMZ) of the eastern Arabian Sea. We show large increases in aragonite contents during glacial and particularly during stadials (Heinrich Events). Using aragonite content, pteropods abundance, organic carbon percentage, and abundance of fertile (eutrophic) species of planktonic foraminifer, we demonstrate that aragonite contents in the eastern Arabian Sea primarily reflects preservation linked to the deepening of Aragonite Compensation Depth (ACD) in the Arabian Sea. We show that these aragonite preservation events correspond with time equivalents of Heinrich Events when Arabian Sea experienced large declines in monsoon-driven productivity and greater penetration of Antarctica Intermediate Water (AAIW). Thus, pteropod preservation in the Arabian Sea appears to be linked to rapid climate change through atmospheric and oceanic teleconnections. We suggest that the role of aragonite carbonate production and burial in margins and the resultant CO<sub>2</sub> climate feedback to rapid climate changes remains poorly constrained.
dc.language.isoen
dc.publisherAmerican Geophysical Union
dc.relation.requiresGeochem_Geophy_Geosyst_15_2014.jpg
dc.rightsAn edited version of this paper was published by AGU. Copyright [2014] AGU. To view the published open abstract, go to http://dx.doi.org/10.1002/2013GC005065
dc.subjectaragonite
dc.subjectcompensation depth
dc.subjectintermediate water masses
dc.titleAbrupt climate-induced changes in carbonate burial in the Arabian Sea: Causes and consequences.
dc.typeJournal Article


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