Description

URL

https://www.sciencedirect.com/science/article/pii/S1464343X23000031

DOI

https://doi.org/10.1016/j.jafrearsci.2023.104830

Brief

Field and mineralogical studies are integrated with multispectral and radar satellite data to unravel the occurrence of sulfide dissemination in the Gabal Monqul area (Eastern Desert, Egypt). This study was motivated by the strong belief that the widespread hydrothermal alteration haloes and sulfide disseminations in this area were ambiguously deciphered as a porphyry-style mineralisation. NE-Elongate bodies of silicified and sulfidized rocks frequently occur at the contacts between andesite-dacite, granodiorite, and porphyritic biotite granite intrusions. Hydrothermal alteration zones are best identified and outlined by employing band ratios (BR) and independent component analysis (ICA) techniques for the distinction between ferric and ferrous iron minerals

KeyWords

Keywords: Gabal Monqul area Eastern desert of Egypt Sulfide disseminations Mineralogy Remote sensing