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Figure F285. Clinopyroxene alteration in gabbros. A. Clinopyroxene exhibiting various degrees of alteration to actinolitic hornblende (Thin Section 90; Sample 312-1256D-223R-1, 42–45 cm; 1449.72 mbsf) (plane-polarized light; field of view [FOV] = 4.5 mm). B. Same as A; cross-polarized light. C. Clinopyroxene partially replaced by actinolitic hornblende (Sample 312-1256D-225R-1, 84–88 cm; 1416.54 mbsf) (plane-polarized light; FOV = 4.5 mm). D. Same as C; cross-polarized light. E. Clinopyroxene altered to a combination of dusty clinopyroxene-actinolite and actinolitic hornblende (Thin Section 79; Sample 312-1256D-217R-1, 64–69 cm; 1422.24 mbsf) (plane-polarized light; FOV = 4.5 mm). F. Same as E; cross-polarized light.

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