地球物理探测方法在吉林江源地区小石人金矿勘查中的应用  

Application of geophysical methods in exploration of Xiaoshiren gold deposit,Jiangyuan,Jilin,China

作　　者：王诗元[1] 范继璋[1] 刘亚剑[1] 徐山[1] 

机构地区：[1]吉林大学综合信息矿产预测研究所,吉林长春130026

出　　处：《地质通报》2007年第7期909-915,共7页Geological Bulletin of China

摘　　要：在小石人金矿勘查中,视电阻率法、激发极化法、高精度磁测法和伽马能谱法均为有效的地球物理探测方法。以视电阻率信息为主要标志,可以建立高阻、高极化、低磁、低K、低总计数率的地球物理模型,且该模型在空间上与硅化蚀变带相对应。在植被覆盖的条件下,该模型在此类金矿勘查中起到先导作用,可用于推断硅化蚀变带的规模和指导勘探工程的布设。Apparent resistivity, induced polarization, high-precision rnagnetometry and γ-energy spectrometry are all effective geophysical methods for gold exploration in the Xiaoshiren gold deposit. With apparent resistivity information as the main indicator, we can construct a geophysical model of high resistivity, high polarization, low magnetism, low K and low total counts. The model corresponds to silicic alteration zones. Under the conditions of vegetation coverage, the model can play a guiding role in gold exploration and may be used to deduce the sizes of silicic alteration zones and guide the design of the exploration project.

关 键 词：地球物理探测 地球物理模型 金矿勘查川 石人金矿 吉林 

分 类 号：P631[天文地球—地质矿产勘探] P618.51[天文地球—地质学]