黑龙江逊克地区金矿遥感信息提取及成矿预测

Information retrieval of remote sensing of gold deposits in Xunke district of Heilongjiang province and its metallogenic prediction

黑龙江逊克地区地质构造复杂,成矿条件优越,具有较大的金矿找矿潜力。利用Landsat ETM+遥感影像数据对该区线性构造和环形构造解译,提取构造信息;利用遥感在对岩石的蚀变信息提取方面的优势,提取其中的羟基、铁染蚀变遥感异常信息。结合研究区已知地质资料和已知矿点资料,进行成矿预测,圈定出7个找矿远景区。

Xunke district in Heilongjiang province bears complicated tectonic structures which show great poten -tials in mineralization and prospecting .Linear and annular formations are interpreted using digital data from Landsat ETM＋remote sensing ,and formation information is retrieved .As a result of the advantage remote sensing displays in information retrieval from rock alteration ,remote sensing anomaly information of hydroxy and iron contaminated altera-tion is retrieved .Combining known geological data in the target area and known data about the spots of mineral occur -rence,the paper conducted metallogenic prediction and delineated 7 districts for prospecting .