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Figure F167. A. Contact between gabbro and microgabbronorite (interval 305-U1309D-103R-1, 5–20 cm). Yellow box = location of B and C. B. Contact between gabbro and microgabbronorite (Sample 305-U1309D-103R-1, 11–14 cm) (plane-polarized light; field of view [FOV] = 2 cm). C. Same as B; cross-polarized light. Yellow box = location of D. D. Contact between medium grain size gabbro and fine grained microgabbronorite (cross-polarized light; FOV = 11 mm). (Continued on next page.)

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