Effects of temperature and pressure on sulfate reduction and anaerobic 
oxidation of methane in hydrothermal sediments of Guaymas Basin

Kallmeyer, J.; Boetius, A.

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Effects of temperature and pressure on sulfate reduction and anaerobic oxidation of methane in hydrothermal sediments of Guaymas Basin

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Kallmeyer, J.
Department of Biogeochemistry, Max Planck Institute for Marine Microbiology, Max Planck Society;

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Boetius, A.
HGF MPG Joint Research Group for Deep Sea Ecology & Technology, Max Planck Institute for Marine Microbiology, Max Planck Society;

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Citation

Kallmeyer, J., & 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), 1231-1233.

Cite as: https://hdl.handle.net/21.11116/0000-0001-D173-1

Abstract

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 × 105, 2.2 × 107, and 4.5 × 107 Pa. A maximum SR of several micromoles per cubic centimeter per day was found at between 60 and 95°C and 2.2 × 107 and 4.5 × 107 Pa. Maximal AOM was observed at 35 to 90°C but generally accounted for less than 5% of SR.