From dacite-porphyries→Cu-Pb-Zn ore→Pb-Zn ore,the content of K~(+),Na~(+),Ca~(2+),Mg~(2+),Cl~(-),F~(-) in liquid phase of fluid inclusion is going to decline while SO~(2-)_4content is increasing,indicating more oxidability in fluid.
The deposit zoning is from contact metasomatic skarn type of iron(tin) deposit→ pneumato hydrothermal skarn tungsten (molybdenum) deposit→ to hydrothermal mesothermal iron (tin )bearing lead zinc deposit or copper lead zinc deposit from granite porphyry outward to the strata.
It is important for our country to comprehensive recover the accompanying gold silver in copper lead zinc sulphide ore. According to the characters of different mineral, different mineral processing techniques are taken, which can obtain good technique indexes and economic effects.
It is concluded that the Cu-Pb-Zn mineralizations in the Dajing and Caijiaying deposits resulted from the identical tectono-thermal event of magma-fluids induced by Mesozoic tectonic transition and extension in the eastern part of North China Craton.
The strata-bound Cu-Pb-Zn polymetallic sulfide deposits occur in metamorphic rocks of greenschist phase of the middle-upper Proterozoic Langshan Group in central Inner Mongolia.
Six zones may be recognized from the granite mass outwards: (1) Nb-Ta-(Li-Be-Mo), (2) Sn, (3) W-(Sn), (4) Cu-Pb-Zn-(Bi), (5) Sb-Hg, and (6) Au-Ag.
Stratiform Cu-Pb-Zn (-Au-Ag) mineralization associated with black carbonaceous schists and acid metatuffs is restricted to distinct horizons within the Cretaceous sequence of the Diahot region.
Based on the fluid inclusion "gas" signature for the Carrock Fell deposit, a distinction can be made between potentially tungstaniferous quartz veins and those related to Cu-Pb-Zn deposits in the absence of diagnostic ore minerals.