Figure F6. Thermal conductivity measured by Advance Piston Corer Temperature (APCT) tool on recovered cores and To plotted vs. depth at Site 1245. Each small symbol represents the average of three needle probe measurements corrected to in situ conditions. All in situ temperature estimates have been corrected using the empirically determined calibration constants given in Table T1, . Overlain on the data is the best-fit linear thermal gradient with uncertainties determined from the standard errors of the solution (Table T2, ). Also shown is the stability boundary between methane hydrate and free methane gas for pore water for the measured salinity at the bottom-simulating reflection (BSR) at this site (3.5%) and at hydrostatic pressure, assuming an uncertainty of ± 5 m in water depth. The depth to the BSR is shown based on sonic log results reported by Guerin et al. (this volume).

Figure F6. Thermal conductivity measured by Advance Piston Corer Temperature (APCT) tool on recovered cores and T_o plotted vs. depth at Site 1245. Each small symbol represents the average of three needle probe measurements corrected to in situ conditions. All in situ temperature estimates have been corrected using the empirically determined calibration constants given in Table T1. Overlain on the data is the best-fit linear thermal gradient with uncertainties determined from the standard errors of the solution (Table T2). Also shown is the stability boundary between methane hydrate and free methane gas for pore water for the measured salinity at the bottom-simulating reflection (BSR) at this site (3.5%) and at hydrostatic pressure, assuming an uncertainty of ± 5 m in water depth. The depth to the BSR is shown based on sonic log results reported by Guerin et al. (this volume).