Geological characteristics and prospecting criteria of lead-zinc deposit in Tianba mining area,Dongchuan,Yunnan Province
Through geological investigation and research on the pb-Zn deposit in Tianba mining area,it is found that the PB-Zn deposit is located in the shallow metamorphic grayish-black sericornite SLATE of the third member of Daying Pan Formation(Pt2d3)in the Middle Proterozoic Kunyang Group.The main orebodies No.Ⅰ,Ⅱ,Ⅲ,Ⅳ and Ⅴ in the area belong to the Ⅱ exploration type of lead-zinc mine.The ore body is obviously controlled by the NE-trending tension-torsion fault and the NW-trending compression-torsion fault.The natural type of ore is primary sulfide ore.The industrial type is lead-zinc easy ore;The genetic type of the deposit is the middle-low temperature hydrothermal filling lead-zinc deposit controlled by fault structure.
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