ZHAO Tong-yang, CHEN Chuan, DU Xiao-tian, XU Shi-qi, HAN Jing. 2009: Wall rock alteration features and ETM+ alteration information extraction of Baogutu No.5 rock mass in western Junggar, Xinjiang, China. Geological Bulletin of China, 28(2-3): 289-296. DOI: 10.12097/gbc.2009020321
Citation:
ZHAO Tong-yang, CHEN Chuan, DU Xiao-tian, XU Shi-qi, HAN Jing. 2009: Wall rock alteration features and ETM+ alteration information extraction of Baogutu No.5 rock mass in western Junggar, Xinjiang, China. Geological Bulletin of China, 28(2-3): 289-296. DOI: 10.12097/gbc.2009020321
ZHAO Tong-yang, CHEN Chuan, DU Xiao-tian, XU Shi-qi, HAN Jing. 2009: Wall rock alteration features and ETM+ alteration information extraction of Baogutu No.5 rock mass in western Junggar, Xinjiang, China. Geological Bulletin of China, 28(2-3): 289-296. DOI: 10.12097/gbc.2009020321
Citation:
ZHAO Tong-yang, CHEN Chuan, DU Xiao-tian, XU Shi-qi, HAN Jing. 2009: Wall rock alteration features and ETM+ alteration information extraction of Baogutu No.5 rock mass in western Junggar, Xinjiang, China. Geological Bulletin of China, 28(2-3): 289-296. DOI: 10.12097/gbc.2009020321
No.1 Regional Geological Survey Team,Xinjiang Bureau of Geology and Mineral Exploration and Development,2. Institute of Geology Survey ＆ Engineering Science , Xinjiang University , 3. Xinjiang Institute of Geology ＆ Environment Monitoring
In this paper, Baogutu No.5 rock mass of Westtern Junggar in Xinjiang is taken as an example, wall rock alteration zoning and periodical pattern are systematically discussed, combined with ETM+ data, and with the help of remote sensing images pre-processing methods, a multi-spectral remote sensing alteration information extraction model based on spectral fitting technology of typical alteration minerals has been set up, namely CES model composed by remote sensing data calibration, mask, pixel unmixing, spectral fitting, SAM, Classification. Based on this model, information extraction has been conducted on the rock mass, and has been overlapped with geochemical data through which feasibility of this method has been validated, satisfactory results have been achieved.
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