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dc.contributor.authorKhare, N.
dc.contributor.authorChaturvedi, S.K.
dc.contributor.authorSaraswat, R.
dc.date.accessioned2009-11-10T11:28:49Z
dc.date.available2009-11-10T11:28:49Z
dc.date.issued2009
dc.identifier.citationOcean Science Journal, vol.44(2); 117-123
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/3429
dc.description.abstractAlong a north-south transect (9.69 degrees N to 55.01 degrees S) in the southwestern Indian Ocean during the Indian Pilot Expedition to Southern Ocean (PESO), the oxygen isotopic analysis of planktic foraminifera (Globigerina bulloides) from 23 surface sediment samples was carried out to assess the relationship between isotopic composition of G. bulloides and the prevailing physical (seawater temperature and salinity) conditions of the ambient seawater. An increasing trend in the delta sup(18)O value is noticed towards higher latitude. Apparently such an increase in delta sup(18)O values is inversely related to the temperature changes along the transect. However, slight mismatch is observed at a few stations due to calcification out of optimum conditions or due to the salinity changes. The preliminary results of the present study, if extended to the subsurface sediments coupled with other parameters, may contribute to the reconstruction of the paleohydrography of the region, especially the position of various seawater fronts during the geologic past albeit with areal limitation
dc.language.isoen
dc.publisherSpringer
dc.rightsAn edited version of this paper was published by Springer. This paper is for R & D pupose and Copyright [2009] Springer.
dc.subjectpalaeo studies
dc.subjectoxygen isotopes
dc.subjectoceanic fronts
dc.subjectforaminifera
dc.titleOxygen isotope records of Globigerina bulloides across a north-south transect in the south-western Indian Ocean
dc.typeJournal Article


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