大井铜-锡多金属矿床地质特征及其成因

Geological characteristics of the Dajing copper-tin polymetallic deposit and its genesis

通过对大井铜-锡多金属矿床成矿地质环境、矿床地质特征以及对岩(矿)石同位素、稀土元素、成矿温度等地球化学和成矿物理化学环境的研究,认为,大井铜-锡多金属矿床为一典型的岩浆热液充填型矿床。与成矿有关的隐伏岩体受深部隐伏的深大断裂控制,可能与黄岗梁矽卡型铁-锡矿床同属一构造岩浆成矿带上不同成矿环境下形成的矿床。并认为,在该成矿带上及大井矿区深部仍有较大的找矿潜力。

According to the research of the Dajing copper-tin deposit on its metallogenic environment, geological characteristics as well as its geochemistry and metallogenic geophysical and geochemical environment including rock（ore） isotope, rare earth element partition, metallogenic temperature, etc. , the paper has concluded that the Dajing deposit is a typical magmatic-hydrothermal filling deposit. The concealed rock body related to mineralization is controlled by deep concealed major faults. The Dajing deposit perhaps belongs to the same structure magmatic metallogenic belt as the Huanggangliang skarn iron-tin deposit does, while their metallogenic environment is different. It is believed that the exploration potentiality is very great both in this metallogenic belt and the deep area of the Dajing deposit.