Figure F30. Thermal conductivity plotted with porosity for Holes 1218A (solid symbols) and 1218B (open symbols). Porosity values for Hole 1218B were derived from the GRA bulk density using the regression of porosity with GRA bulk density for APC recovered sediments in Hole 1218A. Porosity = 145.6 - GRA density x 52.0. R = 0.99.