Extraction of Metallogenesis and Alteration Information of West Gejiu, Yunnan Province
详细信息
- 责任者：Chen Xiaoyun (Guangzhou Institute of Geological Survey ; Guangzhou 510440 ; China) ; Hu Guangdao
- 刊名：Yunnan Geology
- 出版年：2008
- 卷期：27(4)
- 关键词：遥感 ; remote sensing ; 矿产勘探 ; mineral exploration ; 云南 ; Yunnan
- 页码：p.502-508
- 图表：2 illus., 6 refs.
- 分类号：1600
- issnNo：ISSN1004-1885
- isbnNo：CN53-1041/P
摘要
///The metallogenesis and alteration information of Gejiu Orefield are extracted with the classification method (SAM) of spectrospic angle, using ASTER as the data source and referring to the field measured wave spectrum data. In order to get rid of the false "anomaly" information, the indices of silicate, carbonate and ultrabasic rock are calculated and defined with the ASTER thermal infrared spectra ratio, then making RGB and composite image of Lithological information, thus the key area of west region is determined.