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Gallitellia - a proxy for palaeo-monsoonal upwelling on the western coast of India?

DSpace at IIT Bombay

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Title Gallitellia - a proxy for palaeo-monsoonal upwelling on the western coast of India?
 
Creator GHOSH, A
SAHA, S
SARASWATI, PK
BANERJEE, S
BURLEY, S
RAO, TKG
 
Subject planktonic-foraminifera
continental-margin
record
sediments
gallitellia vivans
globigerina bulloides
monsoon tracer
palaeoenvironment
upwelling
 
Description A planktonic foraminifer, Gallitellia vivans, has been recorded in the Quaternary sediments exposed in the Gulf of Cambay. Its occurrence in the sediments dated similar to 50 ka and similar to 125 ka respectively, is identical to peak occurrence of monsoon upwelling indicator, Globigerina bulloides in the Arabian Sea and the continental record of monsoon enhancement in Mahi and Narmada estuaries. The species is known as a tracer of high run-off, environmentally unstable and upwelling conditions. The study suggests the possibility of using G. vivans as monsoon tracer, similar to the well-established biological proxy G. bulloides.
 
Publisher INDIAN ACAD SCIENCES
 
Date 2011-08-01T22:17:31Z
2011-12-26T12:53:31Z
2011-12-27T05:39:48Z
2011-08-01T22:17:31Z
2011-12-26T12:53:31Z
2011-12-27T05:39:48Z
2008
 
Type Article
 
Identifier CURRENT SCIENCE, 95(11), 1608-1611
0011-3891
http://dspace.library.iitb.ac.in/xmlui/handle/10054/8561
http://hdl.handle.net/10054/8561
 
Language en