Tectonic control of mineralization in the Taourirt–Oujda Corridor–Horst belt (north-eastern Morocco): geophysical evidence

Abstract

In this study, we present a magnetic lineaments map of the Horst belt and the Taourirt–Oujda Corridor in the north-eastern of Morocco. This map is performed by means of a multi-scale approach for detecting and analysing magnetic sources boundaries and contacts. Two filtering methods horizontal gradient coupled to upward continuation technique and Euler deconvolution have been applied to ground magnetic and aeromagnetic anomalies. The result map is consistent with many faults already recognized or supposed by the traditional structural studies and highlights new ones by specifying their layout and dips. The results show clearly the relationships between the structural setting of the Horst belt and mineralization deposit. The ore deposit is described as mainly associated with shear zones strikes in NE–SW to ENE–WSW and NW–SE direction. This significant result suggests an epigenetic origin of the mineralization.