Figure F8. Olivine-rich and olivine-poor gabbro. A. Core photograph of sharp modal contact between upper olivine-rich (~20%) gabbro (Unit 1256D-89A) and lower olivine-poor (~2%) gabbro (Unit 1256D-89C) (interval 335(312)-1256D-223R-2, 64–75 cm [Piece 3]). B. Photomicrograph of the olivine-rich base of Unit 1256D-89A (Sample 335(312)-1256D-223R-2, 65–67 cm; Thin Section 1). Ol = olivine, Plag = plagioclase.
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