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1区域地质背景砂西银铅锌矿床位于四川省巴塘县措拉乡辖区内,地处西南三江北段的义敦岛弧褶皱带主孤带中段,区内岩浆活动频繁,褶皱、断裂十分发育,总体构造线呈近SN向展布,次向NW向、NE向和近NW向。顺层断裂构造十分发育,岩石强劈理化。主要断裂构造总体走向为北北西向,与区域构造线基本一致。区域性的德格—乡城、得来—定曲等深大断裂为分区断裂,控制着区内的地层、岩浆岩及矿产的分布。
1 Regional Geological Background The Jaxiyu lead-zinc deposit is located in the jurisdiction of Cuolan Township, Batang County, Sichuan Province. It is located in the middle of the main orogenic belt of Yidun Island arc fold belt in the northern part of Sanjiang, southwest of China. The magma activity in the area is very frequent with pleat and fracture Development, the overall structure of the line was nearly SN spread, the second NW, NE and near NW. Stratified fault structure is very developed, strong rock cleavage. The main faults are generally north-north-west direction, basically consistent with the regional tectonic line. Regional Dege - Xiangcheng, Delai - Dingqu and other deep faults are zonal faults that control the distribution of strata, magmatic rocks and minerals in the area.