Figure F10. Jigsaw-fit texture in hydrothermal breccia with pervasive silica-clay alteration overprinted by silicification (Unit 19). Silicification is particularly prominent in the halos along the quartz-anhydrite-pyrite veins (Sample 193-1189A-10R-1 [Piece 9, 66-88 cm]). A. Close-up photograph of hand specimen. B. Line drawing of hand specimen. The shading highlights kernels of rock that have been least affected by silicification introduced along the quartz-anhydrite-pyrite vein set.

Figure F10. Jigsaw-fit texture in hydrothermal breccia with pervasive silica-clay alteration overprinted by silicification (Unit 19). Silicification is particularly prominent in the halos along the quartz-anhydrite-pyrite veins (Sample 193-1189A-10R-1 [Piece 9, 66-88 cm]). A. Close-up photograph of hand specimen. B. Line drawing of hand specimen. The shading highlights kernels of rock that have been least affected by silicification introduced along the quartz-anhydrite-pyrite vein set.