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本矿床是锡石硫化物多金属矿床,赋存于上泥盆统一整套碳酸盐-硅质岩中。矿床上部为D_3~3页岩,围岩为泥灰岩、D_3~2大扁豆灰岩、小扁豆灰岩、细条带灰岩、宽条带灰岩、D_3~1硅质岩。上述地层中夹有炭质页岩。矿床受区域三级北西向压性褶断带和四级北东向裂隙、及北东向与北西向层面裂隙交汇部位所控制。 一、矿体形态特征 矿床位于倒转背斜部位,背斜东翼平缓,倾角25°—50°;西翼陡,倾角70°至倒转,由于轴向转折形成
This deposit is a cassiterite sulfide polymetallic deposit and occurs in a complete suite of carbonate-chert rocks in the Upper Devonian. The upper part of the deposit is D_3 ~ 3 shale, the surrounding rock is marl, D_3 ~ 2 lentil limestone, lentil limestone, fine-band limestone, broad-band limestone and D_3 ~ 1 chert. Carbonaceous shales are sandwiched between these formations. The ore deposit is controlled by the third-level northwestward compressive fold belt and the fourth-grade northeast fractures in the region and the junction of the north-east and northwesterly fractures. First, the ore body morphological characteristics Deposit is located in the reverse anticline, anticlinal eastern wing gentle, dip 25 ° -50 °; west wing steep, dip 70 ° to reverse, due to axial turning