Figure F31. Heat flow calculation for Site 1220. A. Sediment temperatures from Hole 1220B. B. Thermal resistance calculated for four layers with constant in situ thermal conductivity: (1) 0-38 mbsf (Units I and II) = 0.72 W/(m·K); (2) 38-69 mbsf (Unit III) = 0.96 W/(m·K); (3) 69-188 mbsf (Unit IV) = 0.71 W/(m·K), and (4) 188-200 mbsf (Unit V) = 0.93 W/(m·K). C. Bullard plot, heat flow calculated from a linear regression of all data.

Figure F31. Heat flow calculation for Site 1220. A. Sediment temperatures from Hole 1220B. B. Thermal resistance calculated for four layers with constant in situ thermal conductivity: (1) 0-38 mbsf (Units I and II) = 0.72 W/(m·K); (2) 38-69 mbsf (Unit III) = 0.96 W/(m·K); (3) 69-188 mbsf (Unit IV) = 0.71 W/(m·K), and (4) 188-200 mbsf (Unit V) = 0.93 W/(m·K). C. Bullard plot, heat flow calculated from a linear regression of all data.