内蒙古乌拉山金矿带中大桦背花岗岩与金矿床成因联系探讨

乌拉山金矿带大体背花岗岩成因属陆壳（改造）重熔型。花岗岩在成矿作用中的贡献，不仅能直接提供矿源，而且更重要的是间接提供矿源，花岗岩与金矿床在成因上、空间上、时间上有着密切联系，是形成（花岗岩）与被形成（矿床）的关系。指明乌拉山金矿具有三位一体成矿地质条件，即大古代变质岩系是金等成矿元素的提供者──—成矿基础，中生代构造──—岩浆活动是金等成矿元素的地质营力──—关键成矿作用，随之而进行的是金沿着构造裂隙（与之配套的断裂构造）集中、沉淀的成矿作用。

Metallogenic Approach of Gold Deposit and Dahuabei Granite in Wulashan Inner Mongolia

Dahuabei granite gensis of Wulashan gold deposit belongs to the continental crust(remould)remelting type. The granite, which contributed to ore forming process,notonly offers ore source directly but also provides ore source indirectly.The granite and golddeposit have closely been related in the genesis,the space,time that is a relationship toform(granite)and to be formed(deposit).It is pointed that ore forming geological con-dition relation of three in one. Arcaean metamorphic rock system offers ore forming ele-ment and other elements ore forming basis. Mesozoic Era structure the magma actionis geological agent key of ore forming process.