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Spatial and temporal distribution of foraminifera in sediments off the central west coast of India and use of their test morphologies for the reconstruction of paleomonsoonal precipitation

DRS at CSIR-National Institute of Oceanography

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Title Spatial and temporal distribution of foraminifera in sediments off the central west coast of India and use of their test morphologies for the reconstruction of paleomonsoonal precipitation
 
Creator Nigam, R.
Khare, N.
 
Subject sediments
foraminifera
vertical distribution
palaeoclimate
palaeoenvironments
species diversity
electron microscopy
 
Description From the shallow region off the central west coast of India, 21 samples of surface sediments (ranging in depth from 22 to 52 m) along with two sediment cores of 4.80 m and 4.00 m (surface/subsurface) have been analyzed for foraminiferal composition and diversity. A total of 177 species have been identified and illustrated by scanning electron photo micrographs. Seventy-two genera, 47 families 26 super families and 5 sub orders are represented. In order to have insight into paleoclimatic changes in this region, quantitative spatial distribution data was generated for morpho-groups (angular-asymmetrical and rounded-symmetrical). The distribution revealed less abundance of angular-asymmetrical forms at the river mouth thus indicating an inverse relationship of angular-asymmetrical morpho-groups with river discharge (low salinity water). The reverse is true for rounded-symmetrical forms
 
Date 2009-01-10T11:09:59Z
2009-01-10T11:09:59Z
1999
 
Type Journal Article
 
Identifier Micropaleontology, Vol.45; 285-303p.
http://drs.nio.org/drs/handle/2264/1774
 
Language en
 
Rights Copyright [1999]. 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 Micropaleontology Press