Figure F159. Incipient brecciation, starting from veins and vein networks. A. Incipient breccia cemented by clay minerals and silica (interval 309-1256D-78R-3, 11–28 cm). B. Interval 309-1256D-108R-2, 8–31 cm. C. Thin Section 7 (Sample 309-1256D-78R-3 [Piece 2, 11–14 cm]).
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