Interpretation of Geophysical and Spectrometric Airborne Data of the Eastern Part of the Moroccan Central Massif

This work aims to analyze and interpret a geophysical airborne dataset and to correlate them to field geological data in the order to study structures and subsurface bodies in the eastern part of the Paleozoic central massif of Morocco. This area is one of the most extended outcrops as inliers of Paleozoic basement affected by Variscan compressional events, covered by meso-cenozoic subtabular cover. Megastructures are organized as succession of anticlinoria and synclinoria with a NE-SW main trend. This area is characterized by important diversity of magmatic rocks and plutonic bodies and tectonic structures. Results of airborne data, aeromagnetic and spectrometric of Th element, show a very clear consistency of anomalies with superficial structures. They allow also to marking out and detailed mapping (i) ment granitic body and its surrounding metamorphic aureole rocks, (ii) basaltic flow of plio-quaternary age, and (iii) the main Variscan strike-slip faults as well as NE-SW to ENE-WSW structures corresponding to the main trend of Variscan structures of this range and their probable alpine bending in the central area against the granitic body. Filters and analysis applied on magnetic data such as, reduction to pole, vertical derivative, Euler deconvolution and upward continuations processing PVH, allow to enhancing anomalies and also to carrying out others deeper anomalies south-westward of Ment granitic bodies which can correspond to deeper plutonic bodies.