摘要
通过对辽西杨家杖子和兰家沟钼多金属矿床基础地质资料的分析,得到地层、岩浆岩、构造及蚀变等主要控矿要素;结合控矿要素在遥感影像上的相应信息表征,采用滤波、比值等方法提取构造线性体和蚀变等信息;最后,采用证据权重法对基础地质要素和提取的遥感信息进行证据权重分析和X2独立性检验。结果表明,所选取的控矿要素在数学上是可行性的,地质上是有效的,在已知3个大矿集区的基础上,预测了2个小型远景区。
Through an analysis of geological data of the Yangjiazhangzi and Lanjiagou Mo-polymetallic deposits,the main ore-control factors such as strata,magmatic rocks,structure and alteration were determined.Taking into account geological response to these ore-control factors in remote sensing images and making use of filter,ratio and other related methods,the authors extracted structure linear,alteration,and other information.Subsequently,an analysis of the weight of evidence and a test of independence(X2) of basic geological elements and information in remote images revealed that ore-control factors chosen are reasonable from mathematical and geological viewpoints.The above study led to the delineation of two new prospective areas.
出处
《国土资源遥感》
CSCD
2009年第2期24-28,共5页
Remote Sensing for Land & Resources
基金
教育部博士点基金(20050145032)
省科技基金(20072029)共同资助
关键词
辽西
钼多金属
遥感影像信息
证据权重法
线性体
Liaoxi
Mo-polymetallic deposit
Remote sensing image information
Weights of evidence
Lineament
