Figure F121. A. Green-brown hornblende (Brown Hbl) veins in gabbro (Sample 304-U1309D-4R-2, 108–110 cm) (plane-polarized light; field of view [FOV] = 4.8 mm). The hornblende veins are cut by an almost perpendicular actinolite vein. B. Clinopyroxene (Cpx) with hornblende growing in strain shadow in deformed gabbro (Sample 304-U1309D-9R-2, 50–53 cm) (plane-polarized light; FOV = 1.2 mm). C. Intense breccia (fault?) zone in gabbro (Sample 304-U1309D-4R-2, 20–23 cm) (FOV = 6 cm). Matrix is yellow-green actinolite with minor clay alteration. D. Turbid plagioclase (Plag) cut by actinolite (Act) veins in gabbro (Sample 304-U1309D-6R-1, 121–124 cm) (plane-polarized light; FOV = 1.2 mm). The secondary plagioclase contains abundant solid and fluid inclusions. E. Quartz (Qtz)-chlorite (Chl) vein in diabase (Sample 304-U1309D-1R-1, 41–44 cm) (cross-polarized light; FOV = 4.8 mm). Note unusual sector twinning in quartz. F. Fluid inclusion in quartz-chlorite vein (Sample 304-U1309D-1R-1, 41–44 cm) (cross-polarized light; FOV = 120 µm).
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