Figure F14. Photomicrographs of orthopyroxene-bearing olivine gabbro illustrating the crystallization order for olivine (Ol), orthopyroxene (Opx)/plagioclase, and clinopyroxene (Cpx) (Thin Section 118; Sample 345-U1415P-9R-1 [Piece 3, 36–41 cm]). A. Plane-polarized light. B. Cross-polarized light. White boxes indicate the locations of C and D. C. Skeletal olivine (Ol) is intergrown with orthopyroxene (gray) and plagioclase. D. Late clinopyroxene (orange) is interstitial to all phases.
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