摘要
Mineralization alteration remote sensing anomaly has been perfected based on ETM+/TM data, but al-teration remote sensing anomaly extraction achievement is very poor based on ASTER (Advanced Spaceborne Thermal Emission and Reflection Radiometer) remote sensing data. In the study, we have rebulit alteration miner-alization spectral curves on ASTER remote sensing data based on representative alteration minerals reflectivity data in USGS standard spectral database. We think that four types ions information which are Mg-OH, Al-OH, CO32-and Fe3+ can be extracted. In the paper, a practical application example for Chengde area and Taihang-shang area in Hebei province as example, we have used modifying “deinterfered anomalous principal component thresholding technique flow” to extract the four types of ions information. The results of four types of ions information be extracted are same to the investigation in the field, which shows extracting the four types of ions information based on the ASTER remote sensing can be accepted.