http://irepo.futminna.edu.ng:8080/jspui/handle/123456789/115 2026-05-03T18:12:02Z 2026-05-03T18:12:02Z Alfa, Idris Alhaji Salako, Kazeem Adeyinka Udensi, Emmanuel Emeka Adetona, Abbas Adebayo Shehu, Jamilu http://irepo.futminna.edu.ng:8080/jspui/handle/123456789/29148 2025-05-04T17:47:17Z 2023-10-28T00:00:00Z

Title: Analysis of Electrical Resistivity Survey Data for Aquifer Potential and Protective Capacity at Mararaba Dan-Daudu Minna, North Central, Nigeria Authors: Alfa, Idris Alhaji; Salako, Kazeem Adeyinka; Udensi, Emmanuel Emeka; Adetona, Abbas Adebayo; Shehu, Jamilu Abstract: It is a fact that basement complex regions lacks sufficient overburden that can host sustainable water table, water bearing fractured/weathered rocks referred to as aquifers are usually identified via suitable geophysical methods to proffer solution to water challenges within these regions. This current study targets the exploration of groundwater potential within the Mararaba Dan-daudu community, a suburb of Minna metropolis. Electrical resistivity method was employed to delineate aquifer prospects and their protective capacity within the area of study. The data from thirty-six Vertical Electrical Sounding (VES) survey points were acquired and analysed. Survey points were aligned along six profiles (A – F) with six VES points per profile. Interpretation of VES points along profiles was helpful in determining the number of layers and thickness. The analysis revealed mainly three layers comprising of sand and fresh laterite at the first layer, fractured/weathered basement at the second layer and fresh basement at the third layer. Iso-resistivity mapping was also done at various depths (surface, 5 m, 10 m, 15 m, 20 m, 30 m and 40 m) respectively to investigate the lateral variations of resistivity over a horizontal plane. These showcased the electrical conductance sliced at the depths of interest. Thirteen VES points (A1, A5, A6, B1, B3, B6, C6, D6, E6, F1, F2, F4 and F5) were mapped as having good prospective aquifer properties. Longitudinal conductance was computed for the outlined VES points to determine their Aquifer Protective Capacity (APC). The result of (APC) rating for the 13 VES revealed the frequency and percentage of APC ranged as: 2 VES locations (15.4%) have good APC, 8 VES locations (61.5%) have moderate APC and 3 VES location (23.1%) have weak APC. with only 3 VES locations out of 13 VES locations in the study area revealed weak APC, the results proved that the groundwater potential of the study area has moderately good APC.

2023-10-28T00:00:00Z Alhassan, U. D Aliu, O.D Alkali, A. Rafiu, A. A Adetona, A.A Mohammed, A Salako, K. A http://irepo.futminna.edu.ng:8080/jspui/handle/123456789/29147 2025-05-04T17:28:29Z 2022-01-01T00:00:00Z

Title: Application of the Geoelectric Characterization of the Aquifer in Kwakuti, North Central Nigeria Authors: Alhassan, U. D; Aliu, O.D; Alkali, A.; Rafiu, A. A; Adetona, A.A; Mohammed, A; Salako, K. A Abstract: Vertical Electrical Sounding (VES), using Schlumberger array was carried out to investigate the subsurface layer parameters used to delineate groundwater potential of a 500 x 500 m area of land defined by latitude 9.416622 N to 9.421171 N and longitude 6.618314 E to 6.622833 E located at Government Secondary School, Kwakuti, Niger State. A total of 36 VES points at 100 m interval were sounded with a 100 m maximum half inter current electrode spacing (AB/2). Result revealed that the study area is underlain by three (3) geoelectric layers which include: the top soil with 104.5 to 2260.5 Ωm, 0.6 to 3.8 m and 0.6 to 3.8 m as its range of resistivity, depth and thicknesses respectively; the weathered/fractured layer having resistivity of 44.9 to 606.0 Ωm, depth of 4.3 to 28.6 m and thickness of 4.2 to 26.2 m was considered aquifer layer. The fresh basement has 919.4 to 3816.9 Ωm as its range of resistivity value with undefined depth and thickness. The observed curve types were 100% H. Five (5) VES stations C3, C4, D2, D5, and E4 were delineated as aquifer potentials of the study area, having weathered/fractured resistivity, depths and thickness range from 135.2 to 227.7 Ωm, 20.6 to 28.6 m and 17.8 to 26.2 m respectively.

2022-01-01T00:00:00Z Adetona, A.A Rafiu, A.A Aliyu, Sh.B John, M.K Kwaghhua, I. F http://irepo.futminna.edu.ng:8080/jspui/handle/123456789/29146 2025-05-04T16:59:18Z 2024-02-01T00:00:00Z

Title: Estimating the Heat Flow, Geothermal Gradient and Radiogenic Heat within the Young Granites of Jos Plateau North Central Nigeria Authors: Adetona, A.A; Rafiu, A.A; Aliyu, Sh.B; John, M.K; Kwaghhua, I. F Abstract: Both aeromagnetic and radiometric data were used to evaluate the Curie point depth and radiogenic heat production (RHP) of the young granitic regions of the Jos Plateau. An area of 55 by 110 square kilometers is bounded by latitude 9°30' to 10°00' N and longitude 8°30' to 9°30' E in central Nigeria. The magnetic data was subjected to spectral analysis to obtain the Curie depth, which was subsequently used to evaluate the geothermal gradient and heat flow for the area. Also, the concentration of radioelements (potassium, thorium and uranium) and the average density of the in-situ rock were used to estimate the radiogenic heat production at each point where the Curie point was evaluated. The heat flow in the study area ranges from 10 to 165.5 mW/m2 with an average value of 111.00 mW/m2. The regions with anomalous heat flow of 165.5 mW/m2 are located around Bowon Dodo, Dan Tsofo, Kadunu, Gimi, Kaura and Zankan in plateau state. The geothermal gradient values range from 5 to 68 °C/Km with an average of 26.16 °C/Km. The radiometric data analysis resulted in radiogenic heat values ranging from 0.4 µWm3 to 6 µW/m3 with an average radiogenic heat value of 3.36 µW/m3. Both analyses revealed that regions such as Ataka, Gimi, Jimjim and Pari could be investigated for geothermal energy potential. The high concentration of uranium, thorium and potassium associated with the study area is likely due to the weathering of the in-situ granitic basement rocks.

2024-02-01T00:00:00Z Augie, A. I Salako, K.A Rafiu, A.A Jimoh, M.O http://irepo.futminna.edu.ng:8080/jspui/handle/123456789/29145 2025-05-04T16:45:09Z 2024-01-01T00:00:00Z

Title: Integrated 2D Geoelectric Prospecting for Gold Mineralization Potential Within Southern Part of Kebbi NW Nigeria. Authors: Augie, A. I; Salako, K.A; Rafiu, A.A; Jimoh, M.O Abstract: This is a detailed geophysical research into the anomalous zones identified by previous aeromagnetic studies in the area. Integrated 2D geoelectric prospecting methods involving ERT, IP and SP techniques were used to delineate subsurface structure suitable for gold mineralization potential in parts of the Yauri, Shanga, and Magama areas of the states of Kebbi and Niger in the northwest Nigeria. The ERT, IP and SP measurements were carried out with a dipole-dipole configuration and the SuperSting resistivity meter. The research results revealed regions with low/high resistivity, high chargeability, and high SP values, which were identified as mineral potential zones. The ERT technique has helped to delineate regions with low resistivity anomalous which correspond to oxidized rocks associated with granite/quartzite veins. High resistivity range could exist over dyke structures associated with partially decomposed granite and quartzite, as indicated by the geological setting and borehole log of the area. The IP technique revealed a high chargeability (≥ 20 milliseconds) in the study area, possibly due to the accumulation of metallic minerals in host rocks, such as gold. The SP technique has also helped to identify regions with high SP anomalies (≥20 mV), which are characterized by vein-bearing ore minerals. The integration of ERT, IP, and SP results revealed oxidized rock zones, dyke subsurface structures of decomposed quartzite, granite, gneiss, and ore mineral veins. These zones are located in the northwest Mararra ba, the southwest Jinsani, and the southern Sabon Gari in Niger and Kebbi states. The areas could be considered a potential pathway for gold exploration and exploitation.

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