Figure 4. Depth distribution of TOC (open circles), pore-water sulfate (solid circles), and methane (open circles) in Hole 977A/978A. (Graph redrawn from Comas, Zahn, Klaus, et al., 1996.)

Figure 4. Depth distribution of TOC (open circles), pore-water sulfate (solid circles), and methane (open circles) in Hole 977A/978A. (Graph redrawn from Comas, Zahn, Klaus, et al., 1996.)