Genesis of the Longmendian Ag–Pb–Zn Deposit in Henan (Central China): Constraints from Fluid Inclusions and H–C–O–S–Pb Isotopes

Figure 5

Photographs and microphotographs of wallrock alteration at Longmendian: (a–c) alteration styles and zoning; (d) quartz and calcite associated with silicic and calcite alterations (plane-polarized light); (e) flaky mariposite; (f) chlorite associated with chloritization (plane-polarized light); (g) chlorite and sericite associated with chlorite and sericite alterations (cross-polarized light); (h) quartz, sericite, and calcite associated with silicic, sericite, and calcite alterations (cross-polarized light). Mrp: mariposite; Chl: chlorite; Qtz: quartz; Srt: sericite; Cal: calcite; Pl: plagioclase; Ms: muscovite; Bt: biotite; Am: amphibole; Zrn: zircon.

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