INFLUENCE OF THE ARLIT FLEXURE FAULT ON THE GEOMETRY OF THE TARAT AQUIFER: ARLIT SECTOR, TIM MERSOI BASIN, WESTERN OF THE AIR MASSIF (NORTH, NIGER)

Since 1968, the Tarat aquifer has ensured the need for industrial water and the supply of water to the population (AEP), since the installation of the city of Arlit. The high pressure exerted on this aquifer has caused a continuous decline in the level of this aquifer considered as fossil. The present study aims to provide a better knowledge of the geometry of the Tarat aquifer. A methodological approach based on the analysis and processing of data from mining boreholes and logging revealed that the Tarat aquifer compartmentalized into two zones: a collapsed area east of the Arlit fault, and another raised to the west associated with significant variations in the thickness of the water table in the Arlit area.