Influence of marginal highs on the accumulation of organic carbon along the continental slope off western India

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dc.contributor.author Rao, B.R.
dc.contributor.author Veerayya, M.
dc.date.accessioned 2009-01-09T08:22:32Z
dc.date.available 2009-01-09T08:22:32Z
dc.date.issued 2000
dc.identifier.citation Deep-Sea Research. (II: Topical Studies in Oceanography), Vol.47; 303-327p.
dc.identifier.uri http://drs.nio.org/drs/handle/2264/1680
dc.description.abstract Twenty five surficial sediment samples were collected from the central western continental margin of India, which consists of diverse physiographic entities, continental slope, shelf margin basin, marginal high, and the deep Arabian Basin, at depths between 250 and 2050 m. The sediments were studied to assess the relative importance of productivity, oxygen minima, grain size and bathymetry on organic carbon accumulation/preservation. The total organic carbon (TOC) content in the study area varies from 0.70 to 5.86%. Highest values of organic carbon are recorded on the marginal highs (5.12-5.86%), followed by shelf margin basin (3.53-4.22%) and the continental slope (1.80-3.84%). The organic carbon content is relatively low in the Arabian Basin (0.98-1.46%). The sediments from marginal highs are characterized by high OC contents relative to upper slope at equivalent water depth and also the deeper shelf margin basin. The enrichment of organic carbon on the marginal highs is surmised that diverse topographic features in the slope and the associated hydrodynamic processes also play an important role in the enrichment of organic carbon
dc.language.iso en
dc.publisher Pergamon
dc.rights Copyright [2000]. 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.subject sedimentation
dc.subject total organic carbon
dc.subject biological production
dc.subject biogene deposits
dc.subject continental slope
dc.subject marginal basins
dc.title Influence of marginal highs on the accumulation of organic carbon along the continental slope off western India
dc.type Journal Article


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