Figure F5. Gabbro (Thin Section 18; Sample 345-U1415I-3R-4, 14–22 cm [Piece 2]). A. Core close-up. Red box indicates the position from which the thin section was cut. B. Plane-polarized light. Note the presence of clinopyroxene oikocrysts (arrows) enclosing plagioclase chadacrysts in random orientation, similar to the matrix plagioclase. See also Figure F9A. C. Under crossed polars.
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