Figure F23. Photomicrographs of plagioclase and clinopyroxene phenocrysts and their intergrowths, Hole U1350A. A–D. Textural Type 1: (A) intergrowths of plagioclase and brighter clinopyroxene phenocrysts, (B) separate plagioclase (bright white) and clinopyroxene microphenocrysts in an aphyric groundmass, (C) clump of plagioclase (first order birefringence) and clinopyroxene (second order birefringence) phenocrysts in an aphyric groundmass, and (D) Monomineralic clump of plagioclase phenocrysts. (Thin Section 276; Sample 324-U1350A-11R-1, 101–105 cm). E, F. Textural Type 2: intergrowths of plagioclase and pyroxene (Thin Section 293; Sample 324-U1350A-17R-2, 137–139 cm). A and F are under reflected light; B and E are under plane-polarized light; C and D are under cross-polarized light.
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