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Metabolic Activity of Subsurface Life in Deep-Sea Sediments

D'Hondt, Steven ; Rutherford, Scott ; Spivack, Arthur J.

American Association for the Advancement of Science (AAAS) ; 2002

In: Science Vol. 295, No. 5562 ( 2002-03-15), p. 2067-2070

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In: Science, American Association for the Advancement of Science (AAAS), Vol. 295, No. 5562 ( 2002-03-15), p. 2067-2070

Abstract: Global maps of sulfate and methane in marine sediments reveal two provinces of subsurface metabolic activity: a sulfate-rich open-ocean province, and an ocean-margin province where sulfate is limited to shallow sediments. Methane is produced in both regions but is abundant only in sulfate-depleted sediments. Metabolic activity is greatest in narrow zones of sulfate-reducing methane oxidation along ocean margins. The metabolic rates of subseafloor life are orders of magnitude lower than those of life on Earth's surface. Most microorganisms in subseafloor sediments are either inactive or adapted for extraordinarily low metabolic activity.

Type of Medium: Online Resource

ISSN: 0036-8075 , 1095-9203

URL: Article

DOI: 10.1126/science.1064878

RVK:

TA 1000

RVK:

WA 15000

Language: English

Publisher: American Association for the Advancement of Science (AAAS)

Publication Date: 2002

detail.hit.zdb_id: 128410-1