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Isotopic evidences of past upwelling intensity in the Arabian Sea

DRS at CSIR-National Institute of Oceanography

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Title Isotopic evidences of past upwelling intensity in the Arabian Sea
 
Creator Naidu, P.D.
 
Subject palaeo studies
upwelling
oxygen isotopes
carbon isotopes
foraminifera
monsoon
 
Description Oxygen and carbon isotopic analyses have been performed on the tests of Globigerina bulloides, Globigerinoides sacculifer, Neogloboquadrina dutertrei and Pulleniatina obliquiloculata to study the delta super(18)O and delta super(13)C of shallow and deeper depth living planktic foraminifera species. High and low delta super(18)O sub(obl-bul) and super super(13)C sub(sac-dut) coincides respectively with the low and high flux of G. bulloides (established monsoon upwelling index). The tangible relationships between the flux of G. bulloides and oxygen and carbon isotope differences between the shallow and deeper depth habitat planktic foraminiferal species appear to suggest that delta super(18)O and delta super(13)C of surface and subsurface living foraminifera can be used as isotope indices of upwelling in the Arabian Sea.
 
Date 2008-07-02T05:06:18Z
2008-07-02T05:06:18Z
2004
 
Type Journal Article
 
Identifier Global and Planetary Change, Vol.40; 285-293p.
http://drs.nio.org/drs/handle/2264/1153
 
Language en
 
Rights Copyright [2004]. It is tried to respect the rights of the copyright holders to the best of the knowledge. If it is brought to our notice that the rights are violated then the item would be withdrawn.
 
Publisher Elsevier