Figure F21. Clinopyroxene-bearing troctolite (Sample 345-U1415I-4R-2, 9–13 cm [Piece 2]; under crossed polars). A. Whole thin section image showing moderate-strength magmatic foliation defined by plagioclase and olivine shape-preferred orientation (SPO; red arrow) and one complete and one partial clinopyroxene oikocryst. Foliation wraps around the oikocrysts, which contain elongate, randomly oriented sparse plagioclase crystals. Red boxes (tick mark shows upward direction) indicate the location of images in B, C, D, and E. B. Magmatic foliation in troctolite showing elongated skeletal olivine between annealed plagioclase crystals. C. Olivine subgrains with straight grain boundaries and plagioclase deformation twins within the magmatic foliation. D. Detail of magmatic foliation wrapping around the margin of a clinopyroxene oikocryst and included plagioclase crystals within the oikocryst. E. Bent plagioclase crystal within the margin of the clinopyroxene oikocryst. Other plagioclase crystals at the boundary of the oikocryst show deformation twins.
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