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羊拉矿区的花岗岩类是印支期同源岩浆沿金沙江结合带西侧由北向南侵入、演化而形成,其成因类型属壳幔同熔型(I型),形成的大地构造环境为陆缘弧环境。
The granitoids in the Yangla mining area are formed by the Indosinian magmatic magma intrusive and evolved along the west side of Jinshajiang junction zone from north to south, and the genetic type of the Indosinian magmatism is that of the crust-mantle-feldspar (type I) Edge arc environment.