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Figure F64. Downhole variation of shape-preferred orientation (SPO) parameters, Hole 1256D: percentage of leucocratic patches, shape ratio (SR), and orientation with respect to core axis. Magnetic susceptibility is plotted to support the delineation of magmatic fabric units within Gabbro 1. Major changes in contents of leucocratic patches and magnetic susceptibility decreasing generally downward coincide with Unit 85/86A and 89A/89C boundaries (see Fig. F58).

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