甘肃南部大水金矿土壤地球化学特征及找矿意义

The geochemical characteristics of soils and prospecting significance of the Dashui Gold Ore area in South Gansu Province

甘肃南部大水金矿已累计探明资源量100余吨。通过对矿区进行的1:1万土壤地球化学测量,分析大水金矿区土壤地球化学特征,总结找矿标志,圈定综合异常17处。结合水系沉积物测量、地质填图等手段划定找矿靶区,并通过工程揭露发现了金矿体,说明土壤地球化学测量对大水地区找矿具有指导意义。

The Dashui gold deposit has proved more than 100 tons of gold in South Gansu Province. With the help of 1：10000 scale geochemical survey of soils, geochemical characteristics of the soil are analyzed,and 17 comprehensive abnormalities are delineated. Combined with stream sediment survey and geological mapping, the author delimits the prospecting target. Finally, a gold orebody was discovered. This shows that geochemical survey of geochemical exploration in the Dashui gold deposit has guiding significance.