摘要
在围岩蚀变类型丰富、成矿作用复杂的甘肃省鹰嘴山金矿区,依据矿化蚀变岩与其围岩的波谱特征差异,通过对地面实测光谱数据及其岩矿石多元数据的统计分析,建立混合蚀变遥感模型。选择最佳变量图像或变量图像组合,最终提取出该地区的混合蚀变遥感异常信息。实践证明,该方法在矿化信息的提取上效果显著。
The Yingzuishan gold deposit in Gansu Province is characterized by different wall rock alterations and complicated mineralizations. According to the difference in spectral characteristics between mineralized alteration rocks and wall rocks, the authors made correlation analysis and factor analysis between the in-situ measured spectral data and multivariate data of rocks and minerals, set up remote sensing models for mixed alteration, and selected the best variable or variable unit. The abnormal information of mixed alteration was also extracted. Practice has proved that such a method is effective in extracting mineralization information.
出处
《国土资源遥感》
CSCD
2005年第1期20-25,共6页
Remote Sensing for Land & Resources
基金
国土资源大调查项目:用于地质矿产调查的"遥感信息多层次分离提取技术"的研制(No.20002010004106)。
关键词
混合蚀变
遥感模型
光谱
图像变量
异常信息
鹰嘴山
Mixed alteration
Remote sensing model
Spectrum
Image variogram
Abnormal information
Yingzuishan
