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Oceanography

Carbon cycle at depth

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The existence of a microbial community in the ocean crust has long been hypothesized. Isotopic evidence indicates that a deep biosphere of microbes both scrubs oceanic fluids of organic matter and produces new, yet old, organic carbon in situ.

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Figure 1: Hydrological flow of water in the oceanic crustal aquifer.

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Authors and Affiliations

  1. Katrina J. Edwards is in the Department of Biological Sciences, University of Southern California, 3616 Trousdale Blvd, Los Angeles, California 90089, USA. kje@usc.edu,

    Katrina J. Edwards

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  1. Katrina J. Edwards
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Edwards, K. Carbon cycle at depth. Nature Geosci 4, 9–11 (2011). https://doi.org/10.1038/ngeo1028

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