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Emerging topics in marine methane biogeochemistry
Valentine, D.L. (2011). Emerging topics in marine methane biogeochemistry. Ann. Rev. Mar. Sci. 3: 147-171. dx.doi.org/10.1146/annurev-marine-120709-142734
In: Annual Review of Marine Science. Annual Reviews: Palo Alto, Calif.. ISSN 1941-1405, more
Peer reviewed article  

Available in Author 
Document type: Review

Keyword
    Marine
Author keywords
    methanotrophy; microbial processes; subsurface biosphere; one-carbon metabolism; gas hydrate; methanogenesis

Author  Top 
  • Valentine, D.L.

Abstract
    Our knowledge of physical, chemical, geological and biological processes affecting methane in the ocean and in underlying sediments is expanding at a rapid pace. On first inspection, marine methane biogeochemistry appears simple: Methane distribution in sediment is set by the deposition pattern of organic material, and the balance of sources and sinks keeps its concentration low in most waters. However, recent research reveals that methane is affected by complex biogeochemical processes whose interactions are understood only at a superficial level. Such processes span the deep-subsurface, near subsurface, and ocean waters, and relate primarily to the production, consumption, and transport of methane. The purpose of this synthesis is to examine select processes within the framework of methane biogeochemistry, to formulate hypotheses on how they might operate and interact with one another, and to consider their controls.

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