青海巴拉哈图—白土沟地区成矿地质特征及找矿潜力分析

巴拉哈图—白土沟地区属于北祁连铜、金、铅、锌成矿带托莱山—大坂山成矿亚带。该区上奥陶统扣门子组中基性—中酸性火山岩、火山碎屑岩及沉积岩系分布广泛,构造发育,岩浆活动强烈,具有良好的成矿地质条件。该区已先后发现红沟中型铜矿、松树南沟中型金矿及多拉隆哇金矿等矿床(点),但是整体上来讲,工作程度依然处于较低水平。本文通过对该区成矿地质条件和已有成矿事实等因素分析,认为在该区寻找多金属矿床仍有很大潜力,建议对该区进一步开展找矿工作。

Analysis on metallogenic geological characteristics and prospecting potential of the Balahatu-Baitougou area, Qinghai

The Balahatu-Baitougou area belongs to the Toulaishan-Dabanshan metallogenic sub-belt of the North Qilian copper, gold, lead and zinc metallogenic belts. The basic-intermediate acid volcanic rocks, pyroclastic rocks and sedimentary rocks of the Upper Ordovician Koumenzi Formation are widely distributed in this area, with well-developed structures and strong magmatic activities, and have good metallogenic geological conditions. Although many deposits such as Honggou medium-sized copper deposit, Songshu Nangou medium-sized gold deposit and Duolalongwa gold deposit have been discovered in this area, but the overall level of work is still at a low level. Through the analysis of the ore-forming geological background and existing metallogenic facts in the area, it is considered that there is still great potential for finding polymetallic deposits in this area. It is suggested that further prospecting work should be carried out in this area.