青海省野马泉地区遥感找矿预测研究  

Applying remote sensing to ore prediction in Yemaquan area,Qinghai Province

作　　者：肖美英[1] 朱谷昌[2] 杨自安[2] 邹林[2] 张普斌[2] 

机构地区：[1]中南大学地学院,湖南长沙410083 [2]有色金属矿产地质调查中心,北京100012

出　　处：《矿产与地质》2007年第4期468-471,共4页Mineral Resources and Geology

基　　金：科技部"十五"攻关项目课题四(编号2003BA612A-04)资助

摘　　要：以1/5万青海省野马泉地区图幅范围为研究区,利用TM遥感数据,针对研究区普遍存在的矿化蚀变现象,通过多种方法的对比分析后认为,"主成分分析+比值"方法不仅能有效地抑制植被的干扰,而且还提取出与金属矿化有关的铁化蚀变异常。同时,结合地质矿产、物化探等资料的综合分析,圈定出了2处找矿靶区。经过野外实地查证,提取出的铁化蚀变异常与已知矿(床)化点十分吻合,而且还新发现了一处找矿线索。这为该区进一步的矿产勘查提供了有利的科学依据。A comparison and analysis was carried on with multiple methods, Taking Yemaquan area of Qinghai province in the scale of 1 ： 50 000 as the studying region, using TM remote sensing data, and aiming at the ubiquitous mineralized alteration phenomenon. It is believed that the method of primary composition ananlysis with ratio can not only effectively restrain the interference of vegetation but also extract the mineralized iron alteration anomaly related with metal mineralization. Meanwhile, two targets for ore prospecting have been delimitated combined with a comprehensive analysis of the data including geological mineral resources, geophysical and geochemical exploration, etc.. The fieldwork has verified that the mineralized iron alteration anomaly extracted during the study coincides perfectly with the known spot of mineralization （deposit） with a discovery of a new clew for prospecting, which provide favorable scientific evidence for further prospecting in this area.

关 键 词：遥感 找矿预测 TM数据 主成分分析 铁化蚀变异常 野马泉 青海 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置] P62[自动化与计算机技术—控制科学与工程]