河南省银洞沟银多金属矿床地质特征及成因分析

河南省银洞沟银多金属矿床的发现是在朱阳关—夏馆韧性剪切带北侧的祁子堂-夏馆-板厂-双槐树-官坡Au-Ag-Cu-Pb-Zn-Hg-Sb成矿带内所取得的重大找矿突破。该矿床产于中元古界二郎坪群（Pz1er）内,并受韧性剪切带控制。通过对矿床地质特征、成矿物质来源、物理化学环境及成矿时代等方面的研究,其结果认为,矿床成矿物质主要来自于赋矿地层,成矿热液则是由变质水和岩浆水组成的混合水。首次提出,银洞沟银多金属矿床为受韧性剪切带控制的变质热液型矿床。

Geological characteristics and metallogeny of the Yindonggou silver polymetallic deposit, Henan Province

It is a great breakthrough that the Yindonggou silver polymetallic deposit which occurs in Erlangping Group of Mesoproterozoic Erathem and controlled by ductile shear zone has been discovered in the Qizitang-Xiaguan-Banchang-Shuanghuaishu-Guanpo Au-Ag-Cu-Pb-Zn-Hg-Sb metallogenic belt located in north lateral of the Zhuyangguan-Xiaguan shear zone, Henan Province. According to the research on the geological characteristics of the deposit, metallogenic matter sources, geophysics-geochemistry environment and ore-forming ages etc. , it is concluded that the ore-forming matters mainly come from the ore-bearing stratum with the ore-forming hydrotherm being mixing water of metamorphic water and magma water. The view has been put forward firstly that the Yindonggou silver polymetallic deposit is a metamorphic hydrothermal deposit controlled by ductile shear zone.