Dataset: Sulfate reduction rates at Main Endeavor grotto chimney from samples collected on RV Atlantis (AT18-08) during Jason II dives in the Juan de Fuca Ridge from July to August 2011

Final no updates expectedDOI: 10.1575/1912/bco-dmo.661557.1Version 1 (2016-10-13)Dataset Type:Cruise Results

Principal Investigator: Peter Girguis (Harvard University)

Contact: Kiana Frank (University of Hawaiʻi at Mānoa)

BCO-DMO Data Manager: Hannah Ake (Woods Hole Oceanographic Institution)


Program: Center for Dark Energy Biosphere Investigations (C-DEBI)

Project: Characterizing the distribution and rates of microbial sulfate reduction at Middle Valley hydrothermal vents (Middle Valley Vents)


Abstract

Sulfate reduction rates at Main Endeavor grotto chimney from samples collected on RV Atlantis (AT18-08) during Jason II dives in the Juan de Fuca Ridge from July to August 2011

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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General

Frank, K. L., Rogers, K. L., Rogers, D. R., Johnston, D. T., & Girguis, P. R. (2015). Key Factors Influencing Rates of Heterotrophic Sulfate Reduction in Active Seafloor Hydrothermal Massive Sulfide Deposits. Frontiers in Microbiology, 6. doi:10.3389/fmicb.2015.01449