ETM^+数据在甘肃省肃北县黑刺沟一带蚀变遥感异常信息提取中的应用  

Application of ETM^+ Data to Alteration Remote Sensing Anomaly Extraction in the Heicigou Area of Subei County,Gansu

作　　者：张国荣 芦青山 费一清 

机构地区：[1]甘肃省地矿局第二地质矿产勘查院,甘肃兰州730020

出　　处：《大地构造与成矿学》2010年第3期386-390,共5页Geotectonica et Metallogenia

摘　　要：遥感卫星的多光谱数据应用于找矿已取得显著的成效,ETM+数据因涵盖波长范围宽、波段多、价格合理等因素,而逐渐广泛应用。笔者利用ETM+数据到黑刺沟一带进行蚀变遥感异常提取,提取的蚀变异常与野外地质情况吻合性好,分别提取了铁染和黏土化蚀变遥感异常,并采用了掩膜技术消除了云、冰雪、盐碱地、盐碱滩和植被的干扰。Rewarding results have been achieved in ore mineral exploration using multispectral data of satellite remote sensing.The ETM＋ data are widely used because of the wide wavelength coverage,multi-band,low cost and so on.With ETM＋ data,the authors were able to extract alteration remote sensing anomalies which are quite consistent with the field geological observations in the Heicigou area,during which iron staining and clayzation remote sensing anomalies were extracted respectively.Mask technology was utilized to eliminate the interferences of cloud,snow and ice,salinate fields,salt marsh,and vegetation.

关 键 词：ETM+数据 蚀变遥感异常 掩膜技术 黑刺沟 甘肃省 

分 类 号：P627[天文地球—地质矿产勘探]