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Geochemical evaluation of sea surface sediments along the continental shelf, south east coast of India

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Title Geochemical evaluation of sea surface sediments along the continental shelf, south east coast of India
 
Creator Nisha, V
Achyuthan, H
 
Subject Southwest monsoon
Continental shelf
Ocean surface sediments
Trace elements
Texture
Geochemistry
Anthropogenic sources
 
Description 241-251
Present
study consists geochemical variations and spatial distribution of trace
elements (Fe, Mn, Cr, Co, Cu, Ni, Pb and Zn) of the ocean floor sediments
collected along the continental shelf off East coast Tamil Nadu (Chennai to
Velanganni) during the 2009 southwest monsoon period. Results indicate sand
dominance with abundant calcareous debris and shell fragments. Normalisation of
trace metals with Al signifies a geogenic sediment origin. Enrichment factor
(EF) of trace metals namely Co, Cr, Cu, Ni, Pb, Mn and Zn exhibit an increasing
trend Pb>Cr>Co>Zn>Ni>Cu>Mn

indicating
high values of Pb, Cr, Co and Zn due to the anthropogenic source. However,
contamination factor (CF) and pollution load index (PLI) point less than 1
indicating negligible contamination during the 2009 southwest monsoon

period.
 
Date 2014-03-03T06:54:44Z
2014-03-03T06:54:44Z
2014-02
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/27274
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.43(2) [February 2014]