GIS analyses and favorability mapping of optimized satellite data in northern Chile to improve exploration for copper mineral deposits

Abstract

Data integration and analyses within a geographic information system (GIS) can improve exploration and detection of mineral deposits. We applied a GIS-based analysis and classifi cation strategy of satellite data to the rich and well-explored Eocene-Oligocene porphyry copper province of northern Chile, attempting to recognize the distinctive signature of such giant ore deposits. Imagebased favorability mapping is a supplementary exploration tool and is only applicable to exposed deposits. Additionally, favorability mapping can be used in conjunction with geophysical and geochemical data to improve exploration for buried deposits.