Figure F54. Photographs of recrystallized dike contact. A. Fine-grained darker gray dike at left was chilled against the coarser lighter gray dike at right. Rock is now recrystallized to granoblastic assemblages, which are cut by small amphibole veins (arrows), one of which cuts across the dike contact at center. B. Close-up of A showing dike contact and granoblastic textures throughout both dikes. Orthopyroxene veins at center and right are former hydrothermal veins that were recrystallized during contact metamorphism.
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