Methane Seep Carbonates Host Distinct, Diverse, and Dynamic Microbial Assemblages.

ABSTRACT:

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Marine methane seeps are globally distributed geologic features in which reduced fluids, including methane, are advected upward from the subsurface. As a result of alkalinity generation during sulfate-coupled methane oxidation, authigenic carbonates form slabs, nodules, and extensive pavements. These carbonates shape the landscape within methane seeps, persist long after methane flux is diminished, and in some cases are incorporated into the geologic record. In this study, microbial assemblages from 134 native and experimental samples across 5,500 km, representing a range of habitat substrates (carbonate nodules and slabs, sediment, bottom water, and wood) and seepage conditions (active and low activity), were analyzed to address two fundamental questions of seep microbi

SUBMITTER: Case DH 

PROVIDER: S-EPMC4701829 | biostudies-literature | 2015 Dec

REPOSITORIES: biostudies-literature