成矿溶液电导度和红外光谱在金矿找矿评价中的应用  

APPLICATION OF ELECTRICAL CONDUCTIBLE DEGREE AND INFRARED SPECTRUM IN PROSPECTING AND EVALUATING OF GOLD DEPOSITS

作　　者：武子玉 周永昶[2] 

机构地区：[1]吉林大学国土资源部现代地球物理仪器开放研究实验室,长春130026 [2]吉林大学地球探测科学与技术学院,长春130026

出　　处：《地质与勘探》2005年第2期60-63,共4页Geology and Exploration

基　　金：中国地质调查资助项目(编号: 199920190116);吉林大学创新基金资助项目(编号: 403010123091)联合资助。

摘　　要：电导度是溶液导电能力的相对尺度,电导度的大小能直接反映出成矿溶液浓度的高低。实验证明,成矿溶液相对高浓度聚集区,往往也是矿床的主矿体或富矿体赋存处。石英是刺猬沟和三道湾子金矿重要的脉石矿物,也是金的主要载体。借助于成矿溶液电导度和红外光谱方法对刺猬沟和三道湾子金矿区石英进行了分析。结果表明,成矿溶液电导度和红外光谱测定的DCO2与石英中Au含量呈正相关关系。成矿溶液电导度>40 1μS,DCO2 >0 2矿化好。上述研究获得的信息对中生代陆相火山岩区寻找和评价石英脉型矿床具有指导意义。Electric conductivity is a relative ruler to the conductance of ore-forming solutions. The value of electric conductivity can directly reflect the concentration value of ore- forming solutions. Quartz is an important gangue, as well as a main carrier of gold-hosting mineral in the Ciweigou and Sandaowanzi gold deposits. Quartz is studied using an electrical conductible degree of ore-bearing fluids and infrared spectrum. The results show that electrical conductible degree and D_(CO_2) detected by infrared spectrum has a positive relation to Au content in quartz. Electrical conductible degree over (34.3)μS and D_(CO_2) large than 0.2 indicate intense gold mineralization. This information of quartz is significant to the prospecting and evaluation of gold deposits in the area of Mesozoic continental volcanic rocks.

关 键 词：电导度 红外光谱 石英 找矿评价 

分 类 号：P618.51[天文地球—矿床学]