Abstract

An exploratory survey has been made on the magnetic fabric of a variety of sediments from Legs I-VI of the Deep Sea Drilling Project. Pelagic clays and calcareous and siliceous fossil oozes have generally proved to have no significant magnetic fabric. In the majority of the remaining sediments, primary style fabrics are rare, probably as a result mainly of deformation during drilling. Sufficient undisturbed specimens have been measured, principally from the coarser silts, to indicate that useful fabric information can be obtained from the cores by this method. Measurements from Hole 1 tend to confirm the view that chevron folding in some cores is due to ponecontemporaneous mass movement of near-surface material. Results from Holes 26, 35 and 60 indicate that drilling disturbance is comparatively slight. The influence of palaecurrents is seen; their directions might be determined in oriented cores.

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