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Feedbacks from the sea floor

Clare E. Reimers ()
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Clare E. Reimers: the Institute of Marine and Coastal Sciences, Rutgers, The State University of New Jersey

Nature, 1998, vol. 391, issue 6667, 536-537

Abstract: Over geological time, massive amounts of organic carbon of marine origin have accumulated in the Earth's sedimentary rocks. So a leading question for oceanographers has been what controls the balance between carbon burial and, conversely, its oxidization and recycling. A new analysis provides evidence that a crucial factor is the time that organic matter is exposed to dissolved oxygen after it has been incorporated into sediment. This seemingly simple explanation is attractive because it unites two variables -- the rate at which organic carbon is falling to the sea floor, and bottom-water oxygen content.

Date: 1998
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DOI: 10.1038/35262

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