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>本研究探讨胡安·德富卡脊（Juan de Fuca Ridge）主奋进区（Main Endeavor Field）格罗托构造体（Grotto edifice）热液凸缘（hydrothermal flange）回收样品中，关键环境变量（温度、pH、硫化氢（Hydrogen Sulfide, H₂S）、硫酸盐（Sulfate, SO₄²⁻）、溶解有机碳（Dissolved Organic Carbon, DOC））对硫酸盐还原能量学的影响。通过批量反应实验，在一系列物理化学条件下测定了硫酸盐还原速率。其中温度与pH为最显著的调控因子，在50℃、pH6条件下观测到最高硫酸盐还原速率。 本数据集的信息源自一块从格罗托喷口（Grotto vent，坐标47.949, -129.098）、水深2188.3米处回收的大块热液沉积物样品（重量约100千克），该采样任务为J2-575潜次、AT-18-08航次，搭载于“亚特兰蒂斯号”科考船（R/V Atlantis），由遥控无人潜水器（Remotely Operated Vehicle, ROV）杰森二号（Jason II）的取样吊篮将样品回收至海面。 本数据集的研究方法引自：Frank 等人，2015年。