Figure F5. Seismic P-wave velocity at the top of the basement vs. seafloor age from a compilation by Grevemeyer et al. (1999), with laboratory velocities and mean sonic log velocities from Hole 1243B (Orcutt, Schultz, Davies, et al., 2003) and VSP velocities from Carlson (2004). WST = water sampling temperature probe. Figure from Carlson (2004).