Sulfate reduction energetics 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

<p>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&nbsp;physico-chemical&nbsp;conditions. Temperature and pH were the strongest stimuli, and maximum sulfate reduction rates were observed at 50 degrees celsius and pH 6.</p>

<p>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&nbsp;vent&nbsp;(47.949, -129.098) at a depth of 2188.3 m (Dive J2-575, AT-18-08,&nbsp;R/V Atlantis) and brought up to the surface in the basket of the&nbsp;ROV Jason II.&nbsp;</p>

<p><strong>Methodology for this dataset is from: Frank et al., 2015</strong></p>