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Cyclicity in the Late Holocene monsoonal changes from the western Bay of Bengal: Foraminiferal approach.

DRS at CSIR-National Institute of Oceanography

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Title Cyclicity in the Late Holocene monsoonal changes from the western Bay of Bengal: Foraminiferal approach.
 
Creator Rana, S.S.
Nigam, R.
 
Subject palaeoceanography
Holocene
foraminifera
Uvigerina sp.
Bulimina marginata
 
Description Benthic foraminiferal characteristics, including abundance of total benthic foraminifera, angular asymmetrical benthic foraminifera, Uvigerina sp. and Bulimina marginata, have been studied in a piston core (exihibiting approx. 700 years record as per AMS dating) collected from the region off central east coast of India. Six prominent peaks have been noted in the down core variation in all of these parameters. Based on the already well established inverse relationship between angular asymmetrical benthic foraminifera and monsoon precipitation from the region off west coast of India, it is inferred that the six prominent episodes of variations as noted in the core, indicate changes in monsoon intensity in this region. Based on the spectral analysis, a periodicity of 200 + or -50 years has also been inferred in the monsoonal changes.
 
Date 2014-04-07T08:56:56Z
2014-04-07T08:56:56Z
2009
 
Type Journal Article
 
Identifier Journal of the Palaeontological Society of India, vol.54(2); 2009; 165-170.
http://drs.nio.org/drs/handle/2264/4498
 
Language en
 
Rights Copyright [2009]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
 
Publisher The Palaeontological Society of India