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dc.contributor.authorPrakashBabu, C.
dc.contributor.authorRamaswamy, V.
dc.date.accessioned2018-06-06
dc.date.accessioned2018-10-23T09:24:56Z
dc.date.available2017-08-10
dc.date.available2018-10-23T09:24:56Z
dc.date.issued2017
dc.identifier.citationCurrent Science, vol.113(3); 2017; 473-478
dc.identifier.issn0011-3896
dc.identifier.urihttps://doi.org/10.18520/cs/v113/i03/468-473
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/7817
dc.description.abstractSequential phosphorus extractions were carried out to understand phosphorus cycling and enrichment in surface sediments along the eastern continental margin of India. Phosphorus associated with authigenic (Paut) and biogenic (Pbio) phases is high by a factor of 2-10 in the continental shelf sediments compared to slope and deep-sea sediments. Phosph associated with Fe oxides (PFe) is enriched by a factor of 2-5 in the continental slope and rise sediments (500-3000 m water depth) compared to shelf sediments. Fe-Mn oxy(hydroxides) formed during early diagenesis adsorb phosphate from the water column or pore waters, thereby enriching the PFe fraction in the continental slope sediments. These results are in contrast with those from the Arabian Sea, where wide and intense mid-depth oxygen minimum zone (150-1200 m water depth) releases PFe to pore waters and enhances Paut accumulation in the continental slope sediments.
dc.language.isoen
dc.publisherCurrent Science Association, IAS
dc.relation.ispartofCurr Sci
dc.relation.isreferencedbySCI
dc.titlePhosphorus accumulation associated with intense diagenetic metal-oxide cycling in sediments along the eastern continental margin of India
dc.typeJournal Article
dc.affiliation.authorCSIR-National Institute of Oceanography, Dona Paula, Goa, India


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