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Sulfur and carbon cycling in organic-rich marine sedimentsNearshore, continental shelf, and slope sediments are important sites of microbially mediated carbon and sulfur cycling. Marine geochemists investigated the rates and mechanisms of cycling processes in these environments by chemical distribution studies, in situ rate measurements, and steady state kinetic modeling. Pore water chemical distributions, sulfate reduction rates, and sediment water chemical fluxes were used to describe cycling on a ten year time scale in a small, rapidly depositing coastal basin, Cape Lookout Bight, and at general sites on the upper continental slope off North Carolina, U.S.A. In combination with 210 Pb sediment accumulation rates, these data were used to establish quantitative carbon and sulfur budgets as well as the relative importance of sulfate reduction and methanogeneis as the last steps in the degradation of organic matter.
Document ID
19850024416
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Martens, C. S.
(North Carolina Univ. Chapel Hill, NC, United States)
Date Acquired
August 12, 2013
Publication Date
July 1, 1985
Publication Information
Publication: NASA, Washington The Global Sulfur Cycle
Subject Category
Environment Pollution
Accession Number
85N32729
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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