中亚某金矿地球化学特征分析及其找矿意义

Analysis of Geochemical Characteristics of a Gold Deposit in Central Asia and Its Prospecting Significance

塔国某金矿区位于中亚重要成矿带上,是中亚矿产勘查的重点地区,为了在该金矿区外围(三区)获得新的找矿靶区,对该金矿外围开展1:1万岩屑地球化学测量,重点圈定了Au等11种元素异常和4个综合异常区,本文对圈定的综合异常区进行了推断解译。综合分析后认为异常区位于灰岩和砂岩、粉砂岩的接触界面下盘,形成硅-钙地球化学障面,地质上并伴随有褐铁矿化硅化现象,综合分析推断在该区有可能找到新的矿体。

The gold mine in Taguo is located in an important metallogenic belt in Central Asia, and it is the key area for mineral exploration in the country. In order to obtain new prospecting target areas around the gold mine, 1:10,000 lithic geochemical surveys were carried out on the periphery of the gold mine, 11 kinds of element anomalies such as Au and 4 comprehensive anomalies were delineated, and the comprehensive anomaly areas delineated were inferred and interpreted. After comprehensive analysis, it is considered that the anomalous area is located in the lower wall of the contact interface between limestone, sandstone and siltstone, forming near the silica-calcium geochemical barrier, accompanied by the silicification of limoniteiron ores, and it is possible to find new orebodies in this area.