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Abstract

Work on the permeability and consolidation characteristics of sediment cores from the north-east Atlantic has shown that each sediment type studied has a unique void ratio - permeability relationship and that the permeability decreases with effective stress more rapidly for fine than for coarser grained material. Significant overconsolidation is also present in Pacific red clays from the deep sea drilling project. Their permeability is less for a given void ratio than that of their Atlantic counterparts. A theoretical analysis is given of the effects on permeability of deep open burrows revealed by improved core handling techniques. Mineralogy and sediment and water chemistry of six cores from the Nares Abyssal Plain have demonstrated the effects of lateral sediment redistribution and have shown only mildly reducing conditions. Pore water studies on a 4 m Kasten core from Great Meteor East show oxygen falling to zero within 30 cm of the sediment surface.

Additional information

Authors: SCHULTHEISS P J, INSTITUTE OF OCEANOGRAPHIC SCIENCES, WORMLEY (UK);THOMSON J INSTITUTE OF OCEANOGRAPHIC SCIENCES, WORMLEY (UK), INSTITUTE OF OCEANOGRAPHIC SCIENCES, WORMLEY (UK)
Bibliographic Reference: EUR 8952 EN (1984) FS, 27 P., BFR 200, EUROFFICE, LUXEMBOURG, POB 1003
Availability: Can be ordered online
Record Number: 1989122055300 / Last updated on: 1987-01-01
Category: PUBLICATION
Available languages: en