Figure F300. Host-rock inclusions in dikes. A. Altered cryptocrystalline dike rock with inclusion of (now-altered) host rock (interval 312-1256D-194R-1, 7–11 cm). B. Chilled margin with a vein (a second intrusion) containing an inclusion of host rock (interval 312-1256D-187R-1, 75–78 cm). C. Dikelet of glassy basalt intruding fine-grained basalt (interval 312-1256D-186R-1, 48–53 cm). D. Fractures, veins, and microbreccia domain in dikelet (Thin Section 25; Sample 312-1256D-186R-1, 48–53 cm) (plane-polarized light; field of view [FOV] = 4.5 mm). E. Dikelet with flow banding and inclusion of host rock (Thin Section 25; Sample 312-1256D-186R-1, 48–53 cm) (plane-polarized light; FOV = 9 mm).
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