Figure F32. Plot of downhole distribution of secondary minerals replacing olivine for each alteration interval defined by the alteration petrology group. Symbols are located at center depth of each interval. Occurrence of fresh to moderately altered olivine is based on macroscopic observations; for thin section observations, see Table T8. Gray shading represents sedimentary units, pink and green shading represent basalts that were altered under oxidized and reduced conditions, respectively.
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