利用航空伽玛能谱钾异常圈定朱拉扎嘎金矿外围找矿有利信息  

To determine the favorable prospecting information in the periphery of Julazhagagold deposit by using potassium anomaly of aeronautical gamma and energy spectrum

作　　者：杨玉勤[1] 张翔[1] 邓德伟 陈志鹏 YANG Yuqin;ZHANG Xiang;DENG Dewei;CHEN Zhipeng(Airborne Survey and Remote Sensing Center of Nuclear Industry,Shijiazhuang 050002,Hebei,China)

机构地区：[1]核工业航测遥感中心

出　　处：《矿产与地质》2019年第4期724-730,共7页Mineral Resources and Geology

基　　金：内蒙古自治区地勘基金项目“内蒙古自治区阿拉善盟东部—巴彦淖尔市西部1∶5万航磁航放项目”（编号：10-1-HK02）资助

摘　　要：放射性钾异常是金矿化蚀变的一个重要标志。航空伽玛能谱(简称“航放”)测量资料可直接显示钾元素在地表的分布情况,利用航放钾异常并结合区域地质、物探、化探资料,可以帮助寻找与金矿有关的一些蚀变信息。通过对内蒙阿拉善地区朱拉扎嘎金矿的航放特征进行分析总结,发现矿床上方存在明显的钾异常区,并对金矿外围的元古界中的钾异常区进行了圈定,以此作为该区域金矿找矿的有利信息。Radioactive potassium anomaly is an important sign of gold mineralization and alteration.The aerial gamma and energy spectrum measurement data can directly show the distribution of potassium element in the surface.With the usage of aerial radioactive potassium anomalies and regional geology,geophysical and geochemical data,it can help to determine some alteration information related to gold mineralization.Based on the analysis and summary of aerial radioactive characteristics of the Julazhaga gold deposit in Alagxa region,Inner Mongolia,it is found that there is an obvious potassium anomaly area above the deposit.The potassium anomaly in the Proterozoic strata around the gold deposit is also circled out.It can be used as the favorable information for gold prospecting in this area.

关 键 词：航空伽玛能谱测量 放射性钾异常 朱拉扎嘎金矿 阿拉善地区 内蒙古 

分 类 号：P631.6[天文地球—地质矿产勘探] P618.51[天文地球—地质学]