Figure F77. Intrusive relations between basaltic dike and cataclastic deformation (Sample 345-U1415J-19R-1, 63.5–70.0 cm [Piece 10]). A. Core close-up. Yellow box shows area in B. B. Thin Section 74; Sample 345-U1415J-19R-1, 64–67 cm (Piece 10). Yellow boxes (tick marks show upward direction) indicate locations of C–F (under crossed polars unless otherwise noted). C. Cataclasis hosting a deformed prehnite aggregate. D. Dike zone with narrow cataclastic deformation. E. Contact between cataclasite and dike, with epidote veins that cut the contact (plane-polarized light). F. Cataclastic deformation at the contact zone. Two thin zones of cataclasite derived from each zone develop at the contact zone.
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