Figure F22. Photomicrographs of plagioclase and clinopyroxene microphenocrysts. A, B. Plagioclase glomerocrysts from volcanic breccia in Unit II (Thin Section 6; Sample 324-U1346A-4R-2, 23–26 cm). C. Small tabular plagioclase microphenocryst in basaltic pillow from Unit V (Thin Section 51; Sample 324-U1346A-14R-2, 66–70 cm). D. Plagioclase microphenocryst, with an irregular edge, enclosing several plagioclase microlites (Thin Section 42; Sample 324-U1346A-13R-1, 15–19 cm). E, F. Groundmass intergrowth of acicular clinopyroxene and anhedral dendrites or blades of clinopyroxene. View in F is rotated slightly to enhance color contrast (Thin Section 50; Sample 324-U1346A-14R-2, 36–37 cm). A, B, and F are under cross-polarized light; C, D, and E are under transmitted light.
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