Geofluids

Research Article

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

Table 7

Summary of the major features of representative Ag-Pb-Zn deposits in the Xiong’er, eastern Qinling-Dabie Orogen.
DepositHost rockOre typeOre mineralGangue mineralAlteration zoneOre fluid featureDeposit typeData source
LongmendianTaihua Gp. gneissQuartz-vein and altered-rock type Au oreGalena, sphalerite, pyrite, chalcopyrite, silver-bearing tetrahedrite, pyrargyrite, argentite, bornite, native silver, tetrahedrite, polybasiteQuartz, calcite, siderite, ankerite, sericite, fuchsite, muscoviteSilicic; quartz-carbonate-sericite; chlorite-sericiteMedium-low temperature, low salinity CO2-H2O-NaCl system; vapor comprises H2O and CO2, with some H2, CO, N2, and CH4. Liquid phase comprises Ca2+, Na+, K+, SO42−, Cl−, and F−
ShagouTaihua Gp. gneissMassive and vein-type Ag-bearing lead-zinc oreSilicic; sericite; chlorite; carbonateMedium-low temperature, low salinity CO2-H2O-NaCl systemEpithermal[33]
TielupingTaihua Gp. gneissQuartz vein type and altered rock type silver oreGalena, sphalerite, pyrite, chalcopyrite, arsenopyrite, pyrargyrite, silver-bearing tetrahedrite, argentite, bornite, native silver, tetrahedrite, skinnerite, minetisite, domingiteQuartz, sericite, chlorite, plagioclase, potash feldspar, amphibole, biotite, siderite, calcite, ankerite, fuchsiteSilicic; sericite; chlorite; carbonateMedium-low temperature, low salinity CO2-H2O-NaCl system; vapor comprises H2O, CO2, N2, O2, CO, CH4, C2H2, C2H4, and C2H6Epithermal[34]
HaopinggouTaihua Gp. gneissQuartz vein type and altered rock type silver oreSilicic; sericite; chlorite; carbonateMedium-low temperature, low salinity H2O-NaCl systemEpithermal[33]