Figure F155. Cataclastic zone at the contact with a clast of chilled basalt (cataclastic massive unit). A. Core piece and thin section (interval 309-1256D-117R-1 [Piece 12, 121–125 cm]). B. Thin Section 67 (Sample 309-1256D-117R-1 [Piece 12, 122–125 cm]) (field of view = 10 mm; plane-polarized light, blue filter). Inset shows crosscutting relationships between different events of veining (1 is the oldest); protocataclasite and cataclasite are cut by ultracataclasite and gouge veins.
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