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Assessing the applicability of δ18O Globigerina bulloides to estimate palaeotemperature from the southwestern Indian Ocean

Khare, N and Saraswat, R and Chaturvedi, SK (2008) Assessing the applicability of δ18O Globigerina bulloides to estimate palaeotemperature from the southwestern Indian Ocean. Current Science, 94 (2). pp. 255-258.

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Abstract

Modern sea-water temperature has been estimated using oxygen isotopic composition of planktic foraminiferal species, Globigerina bulloides recovered from the surface sediments collected from southwestern Indian Ocean (IO). The sea-water temperature estimated from δ18O G. bulloides has been compared with that measured on-board. Though a nearly constant offset is noticed between estimated and measured sea-water temperatures at locations south of 15°S latitude, the general trend is at tandem. The coherence between estimated and measured sea-water temperatures indicates that the δ18O G. bulloides palaeotemperature equation derived from laboratory culture experiments can be applied to infer past sea-water temperature variations from southwestern IO.

Item Type: Article
Additional Information: Copyright to this article belongs to Indian Academy of Sciences
Subjects: Oceanography > oceanography
Oceanography > sea water
Oceanography > temperature variations (oceanography)
Depositing User: NCAOR Library
Date Deposited: 11 Jun 2014 10:00
Last Modified: 11 Jun 2014 10:00
URI: http://moeseprints.incois.gov.in/id/eprint/592

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