Figure F3. (A) Carbon isotopic values of interstitial dissolved CO₂ and (B) methane plotted as a function below the seabed in meters (meters corrected depth, mcd; see Keigwin, Rio, Acton, et al., 1998) relative to the sulfate-methane interface (SMI). CO₂ isotopic values are tabulated in Table T1; methane isotopic values appear in Table T2. Site 995 data (ODP Leg 164) for CO₂ and methane are from Borowski et al. (2000) and Paull et al. (2000), respectively.