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dc.contributor.authorPunyu, V.R.
dc.contributor.authorHarji, R.R.
dc.contributor.authorBhosle, N.B.
dc.contributor.authorSawant, S.S.
dc.contributor.authorVenkat, K.
dc.date.accessioned2013-04-25T12:09:58Z
dc.date.available2013-04-25T12:09:58Z
dc.date.issued2013
dc.identifier.citationJournal of Earth System Science, vol.122(2); 2013; 467-477
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/4292
dc.description.abstractSurface sediments collected from 19 stations along Visakhapatnam harbour were analysed for organic carbon (OC), delta sup(13)C sub(oc), total lipids (TL), total hydrocarbon (THC), n-alkane concentration and composition. OC, delta sup(13)C sub(oc), TL and THC ranged from 0.6 percent to 7.6 percent, -29.3 to -23.8 ppt, 300 to 14,948 mu g g sup(-1) dw, and 0.2 to 2,277 mu g g sup(-1) dw, respectively. Predominance of even carbon numbers n-alkanes C12–C21 with carbon preference index (CPI) of less than 1 suggests major microbial influence. Fair abundance of odd carbon number n-alkanes in the range of C sub(15)–C sub(22) and C sub(23)–C sub(33) indicates some input from phytoplankton and terrestrial sources, respectively. Petrogenic input was evident from the presence of hopanes and steranes. The data suggest that organic matter (OM) sources varied spatially and were mostly derived from mixed source.
dc.language.isoen
dc.publisherIndian Academy of Sciences
dc.rights© Indian Academy of Sciences. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
dc.subjectpelagic sediments
dc.subjectorganic carbon
dc.subjectlipids
dc.subjectsaturated hydrocarbons
dc.titlen-Alkanes in surficial sediments of Visakhapatnam harbour, east coast of India
dc.typeJournal Article


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