川西乡城-稻城-得荣地区遥感信息与矿化关系  

Relationship of remote sensing information and mineralization in the Xiangcheng-Daocheng-Derong area of West Sichuan,China

作　　者：凌娟[1] 唐菊兴[2] 李志军[1] 郭娜[1] 白云[1] 

机构地区：[1]成都理工大学地球科学学院,成都610059 [2]中国地质科学院矿产资源研究所,北京100037

出　　处：《成都理工大学学报（自然科学版）》2007年第3期331-335,共5页Journal of Chengdu University of Technology: Science & Technology Edition

基　　金：中国地质调查局国土资源大调查项目(1212010530605)

摘　　要：川西乡城-稻城-得荣地区成矿地质条件良好,是斑岩型铜矿的重点勘探区域。以ETM+图像数据为信息源,运用比值变换和主成分分析技术,进行数据融合和图像增强处理,提取构造和近矿围岩蚀变信息;通过与矿床(点)、地球化学异常等信息叠加,开展川西地区与云南中甸地区重要斑岩成矿带蚀变、区域地球化学异常等综合信息的对比研究,根据物探、化探、遥感的解译成果圈定成矿远景区。因此在遥感信息中提取直接找矿信息(控矿构造和蚀变信息)是有效、经济、快速的地质调查方法。The Xiangcheng-Daocheng-Derong area of West Sichuan is famous for its complex geological structure. It is rich in Indo-Chinese epoch neutral-acid porphyry as well as one of the porphyry copper breakthroughes in the deposits. The information of structure and rock alteration is extracted from ETM remote sensing data dealt data amalgamation and image enhancement by ratio transform and main component analysis. By composing the remote sensing data with deposits and ore spots, geochemistry abnormal information, remote sensing data can reflect the properties of rock and alteration. The geological survey method is effective and economical by translating the remote sensing data to the immediate information predicting mineral resources.

关 键 词：川西 中旬 ETM+遥感图像 构造 蚀变信息 

分 类 号：P627[天文地球—地质矿产勘探]