Figure F92. Core photographs of magmatic and tectonic breccia. A. Interval 176-735B-104R-2, 92-104.5 cm. Dark xenoliths of wall-rock gabbro have been rotated by intrusion of the light-colored felsic material. B. Interval 176-735B-110R-3, 1-10 cm. Xenoliths of host gabbro and individual pyroxene grains sit in a matrix of coarse-grained plagioclase, quartz, alkali feldspar, and euhedral biotite. C. Interval 176-735B-119R-1, 77.5-89 cm. Early magmatic breccia cut by well-developed crystal-plastic fabric. D. Interval 176-735B-97R-4, 121-126.5 cm. Cataclasite with fractured clasts of gabbro enclosed in a fine-grained matrix dominated by chlorite and amphibole, indicative of greenschist facies metamorphic conditions during deformation.