Figure 9. Comparative -log _v' curves for natural samples from Site 897 and from the Nankai Trough (Sites 582 and 808) as well as for their disaggregated equivalents. The disaggregated equivalents for both clays show similar, relatively high porosities and high A_c values compared to those of the natural, uncemented samples. These differences are interpreted as reflecting delayed consolidation during the testing of the natural samples. The cemented variant of the Nankai clay shows higher porosities than the disaggregated equivalent and a higher A_c, which reflects cement destruction and rapid porosity loss.