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. 2013 Mar 28;7(7):1391–1401. doi: 10.1038/ismej.2013.17

Figure 1.

Figure 1

Temperature-dependent sulfate reduction rates in three hydrothermal deposits (Chowder Hill, Dead Dog, and Needles) recovered from Middle Valley. Slurried samples were incubated for 7 days with (Inline graphic) or without (Inline graphic) the addition of 28 mℳ molybdate (a competitive inhibitor for sulfate reduction). Error bars represent 1 s.d. from the average. Statistical significance from the controls (Wilcox–Mann–Whitney) are shown as *P<0.1, **P<0.05. Scintillation measurements of 0 c.p.m. for radioactive sulfide (Zn35S) were considered below the detection limit (BDL).