西藏江拉昂宗地区遥感异常提取与应用  

Alteration Remote Sensing Anomaly Extraction in Jiangla'angzong Area of Tibet

作　　者：欧阳渊[1,2] 赵银兵[2] 倪忠云[2] 张景华[1] 高慧[1] 

机构地区：[1]中国地质调查局成都地质调查中心,成都610081 [2]成都理工大学,成都610059

出　　处：《遥感信息》2016年第5期90-95,共6页Remote Sensing Information

基　　金：中国地质调查项目(12120113036300)

摘　　要：鉴于基于单一数据源的遥感异常信息提取存在一定的局限性,容易丢失一些有用的矿化信息,该文综合应用OLI和ASTER遥感数据,在遥感光谱分析的基础上,结合西藏江拉昂宗地区的矿床地质特征,提取了该地区遥感蚀变信息。通过对研究区内已知矿床成矿作用的分析,重点观察已知矿区的外围地段,成功圈定5处遥感找矿靶区,野外查证发现了3处矿(化)点。通过实例证明,综合分析遥感蚀变信息快速圈定遥感找矿靶区,能够很好地反映有利找矿目标。Remote sensing anomaly extraction based on a single data source has some limitations,which maybe missing some useful information.In this paper,remote sensing alteration zoning information of the Jiangla＇angzong silicon type copper deposit was extracted by using OLI and ASTER data on the basis of remote sensing spectral analysis and geological features of the Jiangla＇angzong silicon type copper deposit.Five prospecting target areas were delimited with analysis of the known mineralization of the deposit and ore district surroundings and three mineral points were found through field survey.This study offers reference to comprehensive analysis of remote sensing alteration information to quickly locate the remote sensing prospecting target area,which can well reflect the favorable prospecting target.

关 键 词：西藏 ASTER 遥感蚀变信息 矽卡岩型矿床 信息集成 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置]