Detection of Gossan Zones in Arid Regions Using Landsat 8 OLI Data: Implication for Mineral Exploration in the Eastern Arabian Shield, Saudi Arabia

Gossans (Fe-rich alteration zones) are the surface indications of massive sulfide, porphyry and skarn deposits in the Arabian Nubian Shield. They consist of limonite, goethite, hematite, malachite, and azurite. The Khunayqiyah gossans, Eastern Arabian Shield, Saudi Arabia, have been used to demonstrate the effectiveness of using the Landsat 8 OLI imagery for detecting and delineating of gossan zones in arid regions. The Khunayqiyah gossans have...