Density, velocities and Poisson's and velocity ratios of ODP Hole 195-1200A serpentinites, South Chamorro Seamount

We measured the seismic velocities, both compressional and shear wave, of clasts recovered during Ocean Drilling Program Leg 195 from a serpentine mud volcano, the South Chamorro Seamount. The compressional wave velocities of these clasts vary from a lower value of 5.5 km/s to an upper value of 6.1 km/s at a confining stress of 200 MPa.

The shear wave velocities vary from a lower value of 2.8 km/s to an upper value of 3.3 km/s at a confining stress of 200 MPa. The densities of the samples vary from 2548 to 2701 kg/m**3. These velocities and densities are representative of the highly serpentinized harzburgite and dunite mineralogy of the clasts.