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Summarizing the VIS-NIR Spectra of Minerals and Rocks

YAN Shou\|xun\+1, ZHANG Bing\+1, ZHAO Yong\|chao\+1, ZHENG Lan\|fen\+1,TONG Qing\|xi\+1, YANG Kai\+2(1.Institute of Remote sensing Applications, Chinese Academy of Sciences, Beijing 100101, China;2. CSIRO Exploration and Mining, PO Box 136, North Ryde 1670, Australia)  
Systematic spectroscopic studies of minerals and rocks are the basements for hyperspectral remote sensing development. The VIS\|NIR spectral features of major minerals and rocks were systematic summarized after the absorption principle of electronic processes and vibration processes were briefly addressed in the paper. Absorption of minerals are caused by electric processes, such as crystal field effects and charge transfer absorption of Fe\+\{2+\}, Fe\+\{+3\} and transition elements; or aused by vibration processes of water molecule, Al\|O\|H, Fe\|O\|H, Mg\|O\|H, CO\+\{2-\}\-3, and color centers of fluorite and conduction bands of sulfur. Absorption of rocks are caused by Fe\+\{2+\}, Fe\+\{+3\} and water molecule, Al\|O\|H, Mg\|O\|H, CO\+\{2-\}\-3, which are impurity, inclusion, alteration or replacement components. At last, the paper pointed out that it is more important for geological exploration with hyperspectral remote sensing in the future to study the change regularity of mineral spectra in different geophysical and geochemical environments.
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