Figure F14. Boundary between anorthositic troctolite and orthopyroxene (Opx)-bearing olivine (Ol) gabbro (red dashed lines) (Thin Section 134; Sample 345-U1415P-18R-1, 78–83.5 cm [Piece 7]). Boundary type = grain size and modal; boundary definition = sharp and sutured. For details see “Descriptions of igneous boundaries.” A. Core close-up. Blue box indicates the position of thin section in B and C. B. Plane-polarized light. Cpx = clinopyroxene, Pl = plagioclase. C. Under crossed polars.
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