Figure F13. Variation in alteration intensity with depth in Hole 1309D. A. Overall degree of alteration in the recovered rock. The red line is alteration intensity averaged over a 5 m interval (normalized to cored intervals only) B. Vein-related alteration and brecciation. The red line is average vein-related alteration calculated on a 5 m interval basis (normalized to cored intervals only).
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