Figure 14.
Temperature and δ 34 S of hydrothermal sulfide from deep-sea hydrothermal vents (DSHV’s; open symbols) and Milos pore waters (solid symbols). Estimates calculated for sulfide in equilibrium (red line) with seawater sulfate (δ34SSO4 = 21.2‰). The Milos regression intersects the equilibrium model at 311.4°C and δ34SH2S = 1.7‰.