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

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dc.contributor.author Sardessai, S.
dc.date.accessioned 1994-12-23T10:06:28Z
dc.date.accessioned 2017-09-30T01:55:45Z
dc.date.available 1994-12-23T10:06:28Z
dc.date.available 2017-09-30T01:55:45Z
dc.date.issued 1994
dc.identifier.citation Oceanologica Acta, vol.17(3); 1994; 263-269
dc.identifier.issn 0399-1784
dc.identifier.uri http://drs.nio.org/drs/handle/2264/7408
dc.description.abstract 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
dc.language en
dc.publisher Elsevier
dc.relation.ispartof Oceanol Acta
dc.relation.isreferencedby SCI
dc.subject Geology and Geophysics
dc.subject.other geochemistry
dc.subject.other organic carbon
dc.subject.other humic acids
dc.subject.other sediments
dc.subject.other environmental factors
dc.subject.other regional variations
dc.subject.other upwelling
dc.subject.other primary production
dc.subject.other ISW, Arabian Sea
dc.title Organic carbon and humic acids in sediments of the Arabian Sea and factors governing their distribution
dc.type Journal Article
dc.affiliation.author CSIR-National Institute of Oceanography, Dona Paula, Goa, India


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