Table 20. Compressional and shear wave acoustic data measured with the LDEO-SST in Hole 994C. Depth (mbsf) Vp (m/s) Vs (m/s) Vp/Vs Poisson's ratio 164-994C- 447 1718 545 3.15 0.44 477 1742 550 3.17 0.44 507 1694 635 2.67 0.42