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  • 1 Department of Geology, Faculty of Sciences, Moulay Ismail University, PB. 11201, Zitoune, Meknes, Morocco, hmidouelouardi@yahoo.fr, hassania-habibou@hotmail.fr
  • 2 Faculty of Sciences and Techniques, Laboratory of Planetology and Geodynamics, Nantes, France, Veronique.ansan@univ-nantes.fr, eric.mercier@univ-nantes.fr
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Abstract

The aim of this work is to interpret the geologic structures of the Agourai area (Paleozoic and Mesozoic structures) from processed magnetic maps. The detected magnetic anomalies from different standard methods used in aeromagnetism (Residual map, RTP map, horizontal gradient map) were compared to geologic structures and permit enhancing the mapping quality of some areas, and thus defining many geologic features. Existing geologic maps and geologic field studies allow interpreting some detected anomalies. It was thus possible to define the limits between the Paleozoic basement and the Mesozoic cover, to determine magnetic anomalies according to NE-SW trends compatible with the regional geologic structures and finally to detect a NE to SW-oriented fault system in the Mesozoic cover of the Agourai Plateau. Despite the reliability of this approach, some folded basaltic sills occurring in this region were not well detected, probably because of their reduced thickness.

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