北祁连西段中低温热液型金矿成因分析

Genetic Analysis of Middle and Low Temperature Hydrothermal Gold Deposits in the Western Section of North Qilian

北祁连西段的主要金矿床都属于典型的中低温岩浆热液型金矿床,该矿床与中酸性火山岩、次火山岩等岩浆岩在成因上、空间上密切相关。本文在前人大量研究结果的基础上,和野外地质、矿体特征、控矿构造以及成矿环境等综合研究相结合,将寒山金矿、车路沟金矿和鹰咀山金矿三个典型的中低温热液矿床的围岩、成矿地质体与成矿的相对关系进行对比,讨论其中的内在关系和矿床成因,为寒山-照壁山成矿远景区的整体勘查提供理论依据。

The main gold deposits in the western segment of the North Qilian are typical of the medium-low temperature magmatic hydrothermal gold deposits. The deposit is closely related to the genesis and space of magmatic rocks such as medium-acid volcanic rocks and sub-volcanic rocks. Based on a large number of previous research results, this paper combines with comprehensive research on field geology, ore body characteristics, ore-controlling structure and metallogenic environment. The relative relationships between the surrounding rock, ore-forming geological bodies and metallogenesis of the three typical low-temperature hydrothermal deposits in Hanshan Gold Mine, Chelugou Gold Mine and Yingzuishan Gold Mine are compared to discuss the intrinsic relationship and the genesis of the deposit. It provides a theoretical basis for the overall exploration of the Hanshan-Zhaobishan metallogenic prospecting area.