Genesis of the Bairendaba Ag-Zn-Pb Deposit, Southern Great Xing’an Range, NE China: A Fluid Inclusion and Stable Isotope Study

Figure 3

Photographs and photomicrographs of ore from the Bairendaba Ag-Zn-Pb deposit. (a) Quartz-pyrite-arsenopyrite vein. (b) Quartz-pyrite-arsenopyrite vein cut by quartz-pyrrhotite-chalcopyrite-sphalerite vein. (c) Quartz-pyrrhotite-chalcopyrite-sphalerite vein cut by Ag-sulfide quartz vein. (d) Calcite-fluorite vein. (e) Galena cut by chalcopyrite-sphalerite vein. (f) Pyrite replaced by pyrrhotite-chalcopyrite-sphalerite aggregate. (g) Pyrrhotite-chalcopyrite-sphalerite aggregate replaced by galena. (h) Pyrargyrite in galena. Qz (quartz); Po (pyrrhotite); Py (pyrite); Ccp (chalcopyrite); Sp (sphalerite); Gn (galena); Pyr (pyrargyrite).