Malaysian Journal of Geosciences (MJG)

ABSTRACT

DECIPHERING GROUNDWATER POTENTIAL WITH THE UTILIZATION OF ELECTRICAL RESISTIVITY GEOPHYSICAL METHOD, SOUTHEASTERN PART OF THE RED SEA STATE, EASTERN SUDAN

Journal: Malaysian Journal of Geosciences (MJG)
Author: Fathelrahman A. Bireir, Abdalla E.M. Elsheikh, Khalid A. Elsayed Zeinelabdein, Mohamed. A.H. Jabir

This is an open access article distributed under the Creative Commons Attribution License CC BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited

DOI: 10.26480/mjg.02.2025.111.119

This study aims to investigate the groundwater accumulation in some rural areas in three localities of the Red Sea State, eastern Sudan. The area is composed of basement rocks overlain in some parts by recent alluvial sediments and Delta deposits. The hydrogeological investigations were confirmed by the conductance of field electrical geophysical survey in which 10 Horizontal electrical profiles and 23 Vertical Electrical Sounding measurements have been executed. The acquired data have been interpreted using IPI2win software. At the shallow basement areas of the investigated locations, the Horizontal Electrical Profile (HEP) have revealed anomalies associated with low resistivity values which is indicative for water-bearing zones. Qualitatively, the dominant types of resistivity curves are KHQ and HKHQ curve types. Quantitatively, the interpreted subsurface layering and the corresponding lithologies reflected the subsurface configuration along the sets of vertical electrical sounding stations. The dominant aquifers in the investigated locations are encountered within; the weathered/fractured zones in the Basement complex areas where the aquifourous zones are characterized by resistivity values of (22 to 180 ohm m). In Recent Alluvial/ deltaic deposits that covers huge area in Tokar locality of the Red Sea State, the aquifourous zones are characterized by resistivity values of (35 to 82 ohm m). The outcomes of the geophysical investigations have been combined with geological and hydrogeological knowledge, in order to define the most potential sites in the targeted localities of the Red Sea State.