collapse therapy

43 vein developed in the contact strip between the metamorphic rocks and granite in Middle Proterozoic Seluohe Group,and the grade of the gold ore is high but the ore body is small;② the brittle compound superimposed tectonic belt,controlled.

该金矿有3种类型控矿构造:①NNE向脆韧性剪切带构造控矿,主要控制43号矿脉,矿脉发育在中元古界色洛河群变质岩系与花岗岩之间的接触带,其控制矿体金的品位高,规模不大;②脆性复合叠加构造带控矿,矿体发育在二长岩和二长花岗岩体中,控制矿体规模大,品位高,是矿区内最主要的控矿构造;③层间虚脱构造控矿,矿体发育在中元古界色洛河群大理岩层之间,碳酸盐为有利的控矿围岩,矿体的规模小,向北倾伏的褶皱构造倾没端是最有利的找矿远景区。