Consolidation characteristics and permeabilities of sediments from the Japan Sea (Sites 798 and 799)

Abstract

Shows that sediments from the Oki Ridge and the Kita Yamato Trough are overconsolidated to normally consolidated to a depth of about 20 m below the seafloor. Below that depth, the sediments are highly underconsolidated, implying high excess pore-water pressures. The most probable mechanism for the generation of the excess pore-water pressure is gas in sediments. -from Author