Dataset: Sulfate reduction rates
Deployment: AT18-08

Sulfate reduction rates at Main Endeavor grotto chimney
Principal Investigator: 
Peter Girguis (Harvard University)
Kiana Frank (University of Hawaii at Manoa, SOEST)
BCO-DMO Data Manager: 
Hannah Ake (Woods Hole Oceanographic Institution, WHOI BCO-DMO)
Current State: 
Final no updates expected
Deployment Synonyms:
 NeMO 2011
Version Date: 

The effects of key environmental variables (temperature, pH, H2S, SO42-, DOC) on sulfate reduction rates in material recovered from a hydrothermal flange from the Grotto edifice in the Main Endeavor Field, Juan de Fuca Ridge. Sulfate reduction was measured in batch reactions across a range of physico-chemical conditions. Temperature and pH were the strongest stimuli, and maximum sulfate reduction rates were observed at 50 degrees celsius and pH 6.

Information for this dataset was derived from single massive piece of hydrothermal deposit (approximately ~100 kg in weight) that was recovered from a flange on the Grotto vent (47.949, -129.098) at a depth of 2188.3 m (Dive J2-575, AT-18-08, R/V Atlantis) and brought up to the surface in the basket of the ROV Jason II

Analysis and write-up of these data are found in Frank et al., 2015

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