(a) Slabbed hand sample of brecciated metabasalt filled with abundant sulfides, quartz and carbonate. (b) Representative photomicrograph of the matrix of metabasalt in thin section (cross-polarized light). (c) Slabbed hand sample of meta-andesite. (d) Representative photomicrograph of meta-andesite in thin section showing a V₂ vein with carbonate developed on its edges as evidence of multi-stage veins infilling (cross-polarized light). (e) Slabbed hand sample showing metarhyolite containing V₁ and V₂ veins. (f) Photomicrograph of representative metarhyolite cut by a V₂ vein in thin section (plane-polarized light). Abbreviation: Ab: albite; Cb: carbonate; Chl: chlorite; Fr: fracture; Ma: matrix; Pl: plagioclase; Qz: quartz; Ser: sericite; V: vein.