Genesis of the Zhijiadi Ag-Pb-Zn Deposit, Central North China Craton: Constraints from Fluid Inclusions and Stable Isotope Data

Figure 6

Photomicrographs showing three stages in the Zhijiadi deposit. (a) The early stage quartz-pyrite vein. (b) The main stage rhodochrosite polymetallic sulfides vein cross-cutting quartz porphyry and some sphalerite and galena disseminated in quartz porphyry. (c) The main stage fluorite-galena filling in the dacite breccia. (d) Coexistence of sphalerite and rhodochrosite in the hydrothermal breccia. (e) Brecciated sphalerite distributing in the altered quartz porphyry breccia. (f) The late stage quartz-carbonate vein cross-cutting the tuffaceous breccia. Py, pyrite; Gn, galena; Sp, sphalerite; Rds, rhodochrosite; Fl, fluorite; Cal, calcite; Dol, dolomite.

(a)

(b)

(c)

(d)

(e)

(f)