Browsing by Author "Ogwola, P."

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    Assessment of Underground Water Potential in Ninga, Akwanga West Development Area, North Central, Nigeria
    (Department of Physics, Nasarawa State University Keffi, 2022-12-12) Ayanninuola, O.S.; Abdullahi, N.K.; Loko, A.Z.; Isah, S.H.; Ogwola, P.
    Ninga area of Akwanga Development Area, North central Nigeria was investigated for the evaluation of groundwater potential. The area is underlain by the Basement Complex of the North-Central Nigeria. Twelve Vertical Electrical Sounding points were identified in the study area using Omega Resistivity Terameter, GPS12Garmix with cable spread of AB/2=160m. Schlumberger electrode configuration was employed. The Vertical Electrical Sounding (VES) data acquired were interpreted into a model curve using IX1D. From this interpretation three (3) different curve types were obtained from the acquired data. They are QH, QA and H. QH type is the dominant type of the curve obtained. It was observed that the aquifer depth range between 8m-46m, basement resistivity 700 Ωm -3700Ωm, depth to basement 16- 56m, aquifer thickness 4m – 31m and aquifer resistivity 150 Ωm -600Ωm. The groundwater potential varies in the study area, VES 1, 4, 5, 6, 7, 9,10, 11, and 12 are viable locations for groundwater exploration, with true aquifer resistivity values range from 150-600Ωm. Keywords: Aquifer, Basement Complex, Electrical Resistivity, Vertical Electrical Sounding,
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    ESTIMATION OF MAGNETIC DEPTH TO SOURCE USING HIGH RESOLUTION OF AEROMAGNETIC DATA OF PARTS OF UPPER BENUE TROUGH, NORTH EASTERN NIGERIA
    (Department of physics, Nasarawa State Univesity Keffi, 2018-06-05) Sawuta, J.M.; Anyanninuola, O.S.; Udensil, E.E.; Ogwola, P.
    A detailed quantitative interpretation of high resolution aeromagnetic data covering latitude 9.0oN – 10.0oN and longitude 11.0oE – 12.0oE with a total area of 12,100km2 which corresponds to parts of upper Benue Trough (Kaltungo, Guyok, Lau and Dong) Northeast, Nigeria has been carried out using Source Parameter Imaging (SPI) and Standard Euler Deconvolution methods for the purpose of estimating the sedimentary thickness of the study area for hydrocarbon maturation or accumulation. The polynomial fitting with order one method was applied in the regional–residual separation. Further analysis was conducted on the residual map. The SPI results revealed a maximum sedimentary thickness of 4908.178m while Standard Euler Deconvolution results also revealed a depth of 4050.1 m. Therefore, the highest sedimentary thickness of the study was found around Wafango, Dong and Lau region of the study area with shallow thickness of 741.108m to 1162.154m around Biliri, Tula and Kaltungo down to Lankoviri in Southern region of the study area. Consequently, the highest sedimentary thickness of about 4908.17 m from SPI and 4050.1 m from Standard Euler deconvolution is sufficient enough for hydrocarbon maturation or accumulation. These areas with maximum sedimentary thickness may be subjected for further geophysical investigation like seismic reflection/refraction, so as to affirm its hydrocarbon potential