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Mineralogical control on the fate of continentally derived organic matter in the ocean

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Science  08 Nov 2019:
Vol. 366, Issue 6466, pp. 742-745
DOI: 10.1126/science.aax5345

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Bound to rock

Organic matter binds to phyllosilicates, a process which affects both its transport and chemical stability. How does that affect the fate of terrestrial organic carbon that enters the ocean? Blattmann et al. show that organic carbon derived from soils is stripped from mineral surfaces upon discharge and dispersal into the ocean, whereas organic matter derived from ancient rocks is preserved there. Their results show that preservation of continentally derived organic matter in marine sediments is controlled largely by phyllosilicate mineralogy.

Science, this issue p. 742

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