Figure F90. Downhole physical properties and compressional wave velocities at Site 1139. Horizontal solid lines separate the lithologic units and the dashed line shows the boundary between Subunits IA and IB. Lithologic units are shown on the right. Discrete measurements are of (A) bulk density, (B) grain density, (C) porosity, and (D) velocity. Arrows mark observed trends in the porosity data.