Publication Date:
2024-01-09
Description:
The fabric of fine-grained sediments from the deep-sea terrace on the landward side of the Japan Trench, cored during Ocean Drilling Program Leg 186, was analyzed using the anisotropy of magnetic susceptibility. The purpose of this study was to document the magnetic fabrics formed in a tensional environment. Faults and joints (healed fractures) were found in the lower portion of recovered core. Analysis of these structures suggests an east-west tensional direction. The general shape of the magnetic fabric ellipsoid is fairly oblate. Bedding planes dip to the east in Hole 1151, and the magnetic fabric is completely controlled by the bedding plane. The magnetic fabric in the interval highly affected by fracturing, however, shows higher anisotropy. Magnetic foliations, which have been reorientated using paleomagnetic north, incline eastward and westward.
Keywords:
186-1150; 186-1151; Anisotropy-magnetic susceptibility, factor F, foliation; Anisotropy-magnetic susceptibility, factor L, lineation; COMPCORE; Composite Core; Declination of principle axis K1; Declination of principle axis K2; Declination of principle axis K3; DEPTH, sediment/rock; DSDP/ODP/IODP sample designation; Event label; Inclination of principle axis K1; Inclination of principle axis K2; Inclination of principle axis K3; Joides Resolution; Kappabridge, AGICO KLY-3S; Leg186; Magnetic susceptibility, volume; Magnitude of anisotropy; North Pacific Ocean; NRM, Declination after demagnetization; NRM, Inclination after demagnetization; Ocean Drilling Program; ODP; Sample code/label
Type:
Dataset
Format:
text/tab-separated-values, 10387 data points
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