Figure 2
From: Deeply-sourced formate fuels sulfate reducers but not methanogens at Lost City hydrothermal field
Average (a) F14C of formate vs. formate concentration and (b) δ13C of formate vs. formate concentration in different vents. Error bars represent the standard deviation of multiple samples (N = 2–6; full data in Supplemental Table 1). The amount of formate isolated from Marker C samples was insufficient for 14C analysis.
