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概况工作区位于龙门山褶皱带北段的槽子沟、毛坝子、大坪河一带。区内出露元古代刘家坪组海底火山喷发的细碧角斑岩,寒武纪邱家组浅海相碎屑沉积物。岩浆岩以斜长花岗岩为主。黄铁矿型铜铅锌多金属矿体,呈不规则状或透镜状,产于次生石英岩化石英角斑岩与石英角斑凝灰岩接触带的含锰夕卡岩中。上部见锰夕卡岩和铁锰帽;块状铜铅锌多金属矿居中;下部是以铅锌为主的浸染状多金属矿。主要金属矿物有黄铁矿、黄铜矿、闪锌矿、方铅矿,脉石矿物有石英、绿
General situation The work area is located in the northern section of the Longmen Shan fold belt trenches, Mao Bazi, Daping River area. The area exposed within the Proterozoic Liujiaping submarine volcanic eruption of small Pithoric porphyry, Cambrian Qiujia shallow marine clastic sediments. The magmatic rocks are predominantly plagiogranite. The pyrite-type Cu-Pb-Zn polymetallic ore bodies are irregular or lenticular and occur in the manganese-containing skarn in the contact zone between secondary quartzite quartz horn porphyry and quartz horn spot tuff. See the upper manganese skarn and iron manganese cap; massive copper and lead-zinc polymetallic ore center; the lower part of the lead-zinc-based disseminated polymetallic ore. The main metal minerals pyrite, chalcopyrite, sphalerite, galena, gangue minerals quartz, green