Record Details

Organic carbon and humic acids in sediments of the Arabian Sea and factors governing their distribution

DRS at CSIR-National Institute of Oceanography

View Archive Info
 
 
Field Value
 
Title Organic carbon and humic acids in sediments of the Arabian Sea and factors governing their distribution
 
Creator Sardessai, S.
 
Subject Geology and Geophysics
geochemistry
organic carbon
humic acids
sediments
environmental factors
regional variations
upwelling
primary production
ISW, Arabian Sea
 
Description Organic carbon and humic acids in the sediments of the Arabian Sea show distinct regional variations to the south and north of 15~'N latitude. Significant variations are also observed from the shelf to the slope regions. Organic carbon and humic acids are enriched on the slope compared to the inner and outer shelf. While upwelling, primary productivity and redox conditions at the bottom are known to influence organic matter accumulation in sediments, bacterial population and sediment texture also contribute to the preservation of organic matter and humic acids. A positive ccrrelation (r = 0.716) between total organic carbon and humic acid content in the sediments indicates fairly favourable conditions for the humification of organic matter. The C/N ratio indictes more terrigenous matter on the shelf, whereas organic matter of planktonic origin seems to dominate the slope region
 
Date 1994-12-23T10:06:28Z
2017-09-30T01:55:45Z
1994-12-23T10:06:28Z
2017-09-30T01:55:45Z
1994
 
Type Journal Article
 
Identifier Oceanologica Acta, vol.17(3); 1994; 263-269
0399-1784
http://drs.nio.org/drs/handle/2264/7408
 
Language en
 
Relation Oceanol Acta
SCI
 
Publisher Elsevier