Figure F173. A. Type 1 hornblende alteration veins (interval 304-U1309D-7R-3, 91–103 cm). B. Type 1 hornblende vein (Sample 304-U1309D-7R-3, 101–102 cm) (plane-polarized light; field of view [FOV] = 1 mm). C. Multiple Type 1 hornblende veins cutting plagioclase grains and disappearing into matrix of hornblende (altered pyroxene) (Sample 304-U1309D-4R-2, 108–110 cm) (plane-polarized light; FOV = 4 mm). D. Type 2 yellow/brown actinolite veins in a cataclastic band at 44 cm (interval 304-U1309D-9R-2, 43–56 cm). Deformed late-magmatic leucocratic dikes intersect at 52 cm. (Continued on next page.)
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