A geoelectrical study of the Sana'a groundwater basin, Yemen Arab Republic

Abstract

The ground water conditions and possibilities in Sana'a Basin were analysed for the purpose of locating a suitable source of water supply, and to delineate the structural set-up of the area. Resistivity vertical electrical soundings, previously performed in the area, were interpreted to construct geoelectrical sections of the subsurface along some selected profiles. Also, some parametric resistivity and conductivity measurements were undertaken at some locations for the different rock types and waters of wells encountered in the area. Correlation between the geoelectrical results and the available geological and hydrological data was made. The study ascertained the groundwater potential in the investigated area and defined the electrical properties of its different rock types. Furthermore, a reliable source of adequate quality and quantity of groundwater was revealed, at an economic depth and distance, to the north-west of Sana'a city.