Figure F122. A. Example of late magmatic leucocratic dike cutting gabbro (interval 304-U1309D-62R-1, 82–94 cm). Box = location of B. B. Detail of A. Tip of dike, showing termination in a shear zone (plane-polarized light; field of view [FOV] = 9.6 mm). Actinolite mat is replacing an interstitial phase, possibly brown hornblende. C. Gabbro dike containing epidote and bladed pyroxenes growing inward from the margin (interval 304-U1309D-75R-2, 74–82). Box = location of D. D. Detail of C. Gabbro dike, showing brecciated texture with epidote, titanite, actinolite, and secondary plagioclase (cross-polarized light; FOV = 4.8 mm).
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