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dc.contributor.authorRajamanickam, G.V.
dc.contributor.authorSetty, M.G.A.P.
dc.date.accessioned1996-10-05T09:56:40Z
dc.date.accessioned2017-09-29T13:47:14Z
dc.date.available1996-10-05T09:56:40Z
dc.date.available2017-09-29T13:47:14Z
dc.date.issued1973
dc.identifier.citationIndian Journal of Marine Sciences, vol.2(2); 1973; 84-89
dc.identifier.issn0379-5136
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/5742
dc.description.abstractSamples collected from sediment water interface from the inner shelf region of Goa coast are examined for their phosphorus and organic carbon, which indicate the geochemical environment under which the present day deposits are laid down. As the colour, texture and lithology of the sediment varies considerably from north to south, so also the degree of concentration of organic carbon and phosphorus varies suggesting that they are in direct relationship with each other. Organic carbon is low (0.85%) at 5-10 m depth, but it is over 5% at 10-20 m depth with a few patchy areas of high and low values beyond and up to 50 m depth. Similarly, phosphorus is low (0-0.1%) at 0-10 m depth, but it is high (0.4-0.98%) at the mouths of the rivers. Both organic carbon and phosphorus are delineated into 2 zones (of high and low concentrations) along Marmugao Head (up to Tiracol river transect). Though organic carbon and phosphorus are related with each other, their variability fluctuates in terms of pre and postmonsoon periods in the region. The organic carbon has a proportional relationship with the clay fraction of the sediment. Higher concentration of phosphorus noticed in postmonsoon periods is considered to be due to a large supply of the terrigenous apatite brought in by the rivers; this is, in addition to contributing factors like organic productivity, upwelling and pollutants in the region. Since the sediment in the region falls within the zone of 0.5-5.0% P@d2@@O@d5@@, it can be considered to be 'phosphate bearing'
dc.languageen
dc.publisherCSIR-NISCAIR
dc.relation.ispartofIndian J Mar Sci
dc.relation.isreferencedbySCI
dc.subjectGeology and Geophysics
dc.subjectChemistry and Biogeochemistry
dc.subject.otherphosphorus
dc.subject.otherparticulate organic carbon
dc.subject.otherdistribution
dc.subject.othernear shore
dc.subject.othersedimentation
dc.subject.otherseasonal variation
dc.subject.otherISW, India, Goa
dc.titleDistribution of phosphorus and organic carbon in the nearshore sediments of Goa
dc.typeJournal Article
dc.affiliation.authorCSIR-National Institute of Oceanography, Dona Paula, Goa, India


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