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. 2015 Jan 14;5:748. doi: 10.3389/fmicb.2014.00748

Figure 3.

Figure 3

Sulfate reduction rates, determined from temperature-gradient experiments after 3–5 days of incubation of; unamended crustal fluids collected from borehole U1301A, amended U1301A fluids with a mix of short-chain volatile fatty acids (VFAs) at 1 mM concentration, amended U1301A fluids with hydrogen at near saturation. Data points represent the average of two experimental replicates.