Figure F5. Comparison of slowness values at Site 808: hand-picked from dispersion plots (red) and from conventional semblance with look-up table dispersion correction (gray). Core recovery from previous drilling was poor so that continuous core velocity measurements and data trends vs. depth could not be reliably interpreted at this location. Conventional semblance results underestimate slowness by up to 10% and remain relative constant below 500 mbsf.

Figure F5. Comparison of slowness values at Site 808: hand-picked from dispersion plots (red) and from conventional semblance with look-up table dispersion correction (gray). Core recovery from previous drilling was poor so that continuous core velocity measurements and data trends vs. depth could not be reliably interpreted at this location. Conventional semblance results underestimate slowness by up to 10% and remain relative constant below 500 mbsf.