地气测量在黄土覆盖区的找矿试验及初步成果

The preliminary result of exploration experiment for geogas survey in the loess-covered area,Gansu

黄土覆盖景观区在我国西部大范围分布,且该区工作程度低,找矿难度非常大。地气测量是近年来地球化学领域为寻找隐伏矿床和提高找矿效果研究的一种新方法、新技术。文章主要研究地气测量在甘肃华家岭—黄家窑黄土覆盖区的找矿效果,元素空间分布表明Cu、Pb、Zn等亲硫元素对地气异常反映比较灵敏,结合异常检查及元素空间分布特征,应用地气测量在华家岭大墩村新发现两条钨矿化体。地气测量方法作为深穿透地球化学找矿方法之一,在研究区能够反映深部矿化,可以应用于黄土覆盖区寻找隐伏矿床。

The loess-covered landscape area is widely distributed in the west of our country,where the working degree is relatively lower,and there is a great difficulty to find out mineral resources.Geogas survey is a new exploration method and technology at recent years in the field of geochemistry to search for hidden deposits to improve the prospecting effect.This article has studied on the prospecting effect of geogas survey in the Huajialing-Huangjiayao loess area of Gansu.The spatial distribution of geochemical elements shows that Cu,Pb,Zn and other sulfophile elements are more sensitive to geogas anomalies.For the anomaly inspection and element space distribution characteristics,two new tungsten mineralization bodies are discovered by geogas survey in Daduncun,Huajialing area.As one of the deep-penetrating geochemical exploration methods,the geogas survey method can reflect the deep mineralization information in the study area.It can be applied to explore for concealed deposits in the loess-covered area.