Dataset: Sulfate reduction energetics
Deployment: AT18-08_Jason_Dives

Sulfate reduction energetics at Main Endeavor grotto chimney.
Principal Investigator: 
Peter Girguis (Harvard University)
Co-Principal Investigator: 
Karyn Rogers (Rensselaer Polytechnic Institute, RPI)
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
Version Date: 

The effects of key environmental variables (temperature, pH, H2S, SO42-, DOC) on sulfate reduction energetics 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. 

Methodology for this dataset is from: Frank et al., 2015

More information about this dataset deployment