Figure F19. Photomicrographs of Sample 209-1275B-19R-1, 49-51 cm (cross-polarized light: blue filter). A. Example of a bent plagioclase phenocryst that is optically zoned and lacks polysynthetic twinning (field of view = 2.75 mm; image 1275B_037). B. Skeletal plagioclase enclosing crystals of clinopyroxene and olivine (field of view = 1.4 mm; image 1275B

Figure F19. Photomicrographs of Sample 209-1275B-19R-1, 49-51 cm (cross-polarized light: blue filter). A. Example of a bent plagioclase phenocryst that is optically zoned and lacks polysynthetic twinning (field of view = 2.75 mm; image 1275B_037). B. Skeletal plagioclase enclosing crystals of clinopyroxene and olivine (field of view = 1.4 mm; image 1275B_036).