Effect of compaction on the acquisition of a detrital remanent magnetization in fine-grained sediments |
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| Authors: | R A Blow N Hamilton |
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| Institution: | Department of Geology, The University, Southampton SO9 5NH |
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| Abstract: | Summary. Measurements of the detrital remanent magnetization (DRM) of redeposited deep-sea sediment of the silty clay grade are described. Variations in the magnitude of an observed remanence inclination error are related to conditions of sediment accumulation, contrasted here as grain-by-grain settling from a dilute dispersion or by settling from a concentrated slurry. For these artificial redepositions post-depositional compaction is shown to be a major factor in shallowing the observed inclination from the ambient field inclination. The term compactive DRM is tentatively assigned to describe such behaviour. |
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