Figure F33. Primary vein features. Pl = plagioclase, Cpx = clinopyroxene. A. Chlorite (Chl) vein showing radiating texture and partial replacement by prehnite (Pr) in gabbro (Thin Section 125; Sample 345-U1415P-13R-1, 39–42 cm [Piece 5]). B. Massive chlorite vein crosscut by a thin prehnite vein in gabbro (Thin Section 109; Sample 345-U1415P-6R-2, 38–41 cm [Piece 4]). C. Cross-fiber chlorite vein with partial replacement by prehnite and central injection of zeolite (Zeo) in gabbro (Thin Section 108; Sample 345-U1415P-6R-2, 31–34 cm [Piece 3]). D. Prehnite vein in a cataclastic sample (Thin Section 121; Sample 345-U1415P-10R-1, 121–134 cm [Piece 13]). E. Amphibole (Amp) vein crosscut by a thin chlorite vein in gabbro (Thin Section 106; Sample 345-U1415P-6R-1, 58–61 cm [Piece 6]). F. Chlorite vein showing partial replacement by prehnite and coarse-grained carbonate (Ca) in gabbro (Thin Section 97; Sample 345-U1415P-3R-1, 120–123 cm [Piece 20A]).
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