Effects of Temperature and Pressure on Sulfate Reduction and Anaerobic Oxidation of Methane in Hydrothermal Sediments of Guaymas Basin

Kallmeyer, Jens and Boetius, Antje ;

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Antje.Boetius [ at ] awi.de

Abstract

<jats:title>ABSTRACT</jats:title> <jats:p> Rates of sulfate reduction (SR) and anaerobic oxidation of methane (AOM) in hydrothermal deep-sea sediments from Guaymas Basin were measured at temperatures of 5 to 200°C and pressures of 1 × 10 <jats:sup>5</jats:sup> , 2.2 × 10 <jats:sup>7</jats:sup> , and 4.5 × 10 <jats:sup>7</jats:sup> Pa. A maximum SR of several micromoles per cubic centimeter per day was found at between 60 and 95°C and 2.2 × 10 <jats:sup>7</jats:sup> and 4.5 × 10 <jats:sup>7</jats:sup> Pa. Maximal AOM was observed at 35 to 90°C but generally accounted for less than 5% of SR. </jats:p>

Item Type

Article

Authors

Kallmeyer, Jens and Boetius, Antje ;

Divisions

AWI Organizations > Biosciences > Joint Research Group: Deep Sea Ecology and Technology

Programs

Basic Research > Helmholtz Independent Research

Publication Status

Published

Eprint ID

24058

DOI https://www.doi.org/10.1128/aem.70.2.1231-1233.2004

Cite as

Kallmeyer, J. and Boetius, A. (2004): Effects of Temperature and Pressure on Sulfate Reduction and Anaerobic Oxidation of Methane in Hydrothermal Sediments of Guaymas Basin , Applied and Environmental Microbiology, 70 (2), pp. 1231-1233 . doi: https://www.doi.org/10.1128/aem.70.2.1231-1233.2004

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