Figure F34. Downhole variations of alteration degree, presence of fresh glass, vein thickness, vein mineralogy, and pyrite occurrences, Hole U1347A. Lithology is from "Igneous petrology" and is a schematic representation of stratigraphic units based on a compilation of visual core descriptions and logging data. In the alteration intensity column, gaps are representative of intervals where cores were not recovered. Percentage of glass preserved indicates fresh glass at pillow and sheet flow margins.
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