USING ELECTRICAL RESISTIVITY AS A HYDROGEOLOGICAL TOOL TO DETERMINE THE AQUIFER CONTINUITY AND LATERAL EXTENT WITHIN DUTSIN-MA BASEMENT COMPLEX

This research investigates the aquifer continuity and lateral extent in the Dutsinma Basement Complex using the electrical resistivity method, particularly Vertical Electrical Sounding (VES). The study aims to delineate aquifer characteristics critical for sustainable groundwater management. Aquifers are vital for water supply, especially in arid regions. Understanding their continuity and extent is essential for effective resource management. This study focuses on the Dutsinma Basement Complex, characterized by geological complexities that affect groundwater. The demand for clean and portable water increases exponentially with increase population and industrialization. Water is therefore a vital resource without which life will become impossible. The methodology adopted used and interpreted 20 Vertical Electrical Sounding (VES) images obtained using ADMT 300S. The aquifer parameters information estimated from the (VES) were used to produce maps. For effective use of these parameters, iso-thickness and iso -resistivity maps were compared with contour maps of transverse resistance. The agreement between these parameters provided the basis for identification of auriferous zones. The Dutsinma Basement Complex is part of Nigeria’s extensive Basement Complex, characterized by ancient crystalline rocks such as migmatites, gneisses, and schists. These rocks have undergone significant geological processes, including multiple folding and metamorphism, mainly during the Eburnean and Pan-African orogenies. The complex serves as a crucial area for understanding the region’s geological history and structural evolution, providing insights into groundwater flow dynamics. Aquifers within the Dutsinma Basement Complex are vital for local water supply, supporting agriculture and domestic needs. They play a significant role in maintaining ecosystem health by providing water to rivers and wetlands. Understanding aquifer continuity and lateral extent is essential for sustainable management of these resources, especially in areas where groundwater is the primary source of water.