New exploration developments using a new exploration parameter (alteration remote sensing anomaly) for metallic deposits in East Tianshan

The application of space-flight remote sensing technology for mineral exploration and the comprehensive processing of geological-geophysical-geochemical and remotely-sensed information on the GIS platform are the leading-edge problems of the modern science and technology. The technology for extraction of the alteration remote sensing information from ETM+ data was improved in 2003. Besides the principal component analysis (PCA), spectral angle mapping (SAM) and anomaly level slicing were included for quick minimizing the exploration targets with different ore types. Together with the 6(th) geological exploration team of the Xinjiang geological bureau we have accomplished field check for more than 400 anomalies and found 4 Cu-mineralized spots 1 Pb-Zn-Ag mineralized spot and several Au-mineralized spots in east Tianshan. And the prospecting potential of a series of known deposits was expanded in their peripheral areas.