Applied Geophysics
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Applied Geophysics
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Item A Seismic Refraction Study of the Influence of Basement Topography on Existing Run-of Channel at Television Village Campus of Kaduna Polytechnic, Kaduna Nigeria.(2004) ADETONA, Adebayo Abbass, Agelaga A.G.Item Geoelectrical survey for Groundwater at the Gidan Kwano Campus of the Federal University of Technology minna.(Enviromental Technology and Science Journal (ETSJ),, 2006) 44 Udensi E.E, Unuevho C.I., Jonah S.A., Ofor P.N., Adetona A.A., Salako K.A., GanaC.S.,Nwosu J.E., Mulero E.O., Iwuafor H. O., Akinloye O.A., and Owolabi E.OVertical electrical sounding (VES) was carried out at Union Site Gidan kwano campus, Federal University of Technology, Minna, Nigeria. The objective is to delineate area suitable for structural development and soil corrosivity of the study area. Schlumberger electrode configuration was adopted with maximum current electrode spacing (AB/2) of 100 m. The profile separations was 100 m with inter vertical electrical soundings (VES) point spacing of 100 m. Total of sixty (60) vertical electrical soundings (VES) station were covered. The interpretation revealed three distinct geologic layers. These include topsoil with resistivity values range between 11.41 and 1009 ohm-m and thickness is relatively thin and ranges between 1 and 6 m. The weathered/fractured layer has resistivity values also ranges from 11 to 963 ohm-m with thickness ranges from 1 to 45 which indicate high degree of weathered/fracture and/or water saturation, The fresh basement has resistivity values that range between 12 and 2983 ohm-m. All the soundings are 3-layered and are characterised by A, H and Q curve types. Seventeen (17) VES station were delineated for high rise building having depths to fresh basement varying between 2 m to 5 m (where consolidated basement is shallow with high resistivity value). The corrosivity ratings of the study area shows that 13% is moderately corrosive, 8% is slightly corrosive and 79% suggest practically noncorrosive. The result reasonably provide information areas where high rise building can be sited and iron pipe can be laid in order to safeguard the hydrological setting of the area.Item Ground water Exploration at the South-Western part of Maikunkele village, Niger State Nigeria using electrical method(. Journal of Technology and Mathematics Education (JOSTMED)., 2017) ADETONA, Adebayo Abbass, 36 Abdullahi MohammedA conventional D.C VES Survey was carried out in Government Day Secondary School Site, Maikunkele, Minna, Niger State, Nigeria. It lies between 09⁰40’37.17” to 09⁰41’37.15”N latitudes and 06⁰29’51.66” to 06⁰30’51.55”E longitudes in the basement complex region of Nigeria. The survey was carried out with the aim of evaluating the groundwater potential of the surveyed region and to locate suitable site for productive borehole development in the study are. The technique used in this research is the Vertical Electrical Sounding using Schlumberger configuration. A total of 30 VES points were located on grid profiles separated at 100 m interval between profiles. The data acquired from the survey were subjected to geophysical interpretation with the help of a computer based program called WinResist. The result acquired from the 5 profiles were analysed and contoured to produce the resistivity contour maps and iso-resistivity contour maps for the surface and the basement. The interpreted layered-earth model suggests the existence of two geo-electric regions. The weathered basement is considered as the bearing zone (aquifer) and is generally characterized by relative resistivity values of 100 Ωm to about 485 Ωm and aquifer thickness ranging between 3 m to 20 m. The Southern and Northern part of the study area are the most promising regions for sinking boreholes to derive underground water. The high resistivity distribution at the Southern to North central parts of the study area could be attributed to laterite deposit at the surface of the region where00as the Northeast and North-western corresponds to area delineated as having shallow basement.Item GEOELECTRICAL INVESTIGATION FOR GROUNDWATER AT DAY SECONDARY SCHOOL, KAMPALA, MINNA, NIGER STATE, NIGERIA(Nigerian Journal of Physics 2018, 2018) ADETONA, Adebayo Abbass, Damidami LukaGeoelectrical investigation of groundwater has been carried out at Day Secondary School, Kampala, Minna, Niger state, Nigeria. The area is situated on Latitude 9⁰40'37.11'' to 9⁰41'37.1''N and longitude 6⁰29'52.64'' to 6⁰30'51.56'' E. The survey was carried out with the aim of delineating the potential area for groundwater development and locating possible and suitable sites for productive boreholes, via overburden thickness and depth to the groundwater within the study area. A total of 500 m x 500 m was covered with VES points at 100 m interval and inter profile space of 100 m giving a total of thirty six (36) VES points. The schlumberger configuration was used for data collection with half-current electrode (AB/2) ranging from 1 to 100 m. WinResist computer software package was used to produce the VES curves. The quantitative interpretation of the VES curves made use of curve matching and computer aided approach. The depth sounding interpretation results were used to generate geoelectric section. The corresponding geologic section were also generated which revealed the existence of three subsurface layers. These layers comprises the topsoil, weathered/fractured basement and fresh basement The depth to basement map was also produced to further indicate depth to basement from the ground surface with VES A2, B5, D2 and E1 to be relatively deeper with depth values range between 25 to 35 m while the shallower region of the area has a depth range values between 10 to 20 m. Hence, VES A2, A5, B4, B5, C2, C4, D4, D5, E1, E3, and F4 are high conductive zone which are prolific for ground water potential. The depth range of the aquifer potential zones is between 22.7 m to 50.4 m. Correlations of the geologic sections extracted from the geoelectric section with the interpreted nearby borehole log were in agreement.Item ANALYSIS AND DESRIPTION OF THREESTAGES HEAR TREATMENT REQUIRED IN THE FIBRICATION OF ADJUSTABLE DIE(THREAD CUTTING TOOL)USING HIGH CARBON STEEL(AFRICAN JOURNAL O ENGINEERING RESERACH AND DEVELOPMENT, 2008) ADETONA, Adebayo AbbassThe work sample high grade carbon steel for annealing before machining it into a cutting tool the resultant tool was quenched in red oil from a temperature of 800 degrees centigrade to room temperature and was tested for work abilityItem Investigating the structures within the Lower Benue and Upper Anambra basins, Nigeria, using first Vertical Derivative, Analytical Signal and (CET) centre for exploration targeting plug-in(SCIENCE PUBLISHING GROUP, 2013) ADETONA, Adebayo Abbass, , ABU MALLAMAbstract: The IGRF-corrected 2009 aeromagnetic data over the Lower Benue and Upper Anambra basins Nigeria was subjected to both Vertical and Horizontal Derivatives, Analytical Signal and CET grid analysis, these digital processing tools were achieved both on map and profile analysis. From the analysis of both the Vertical and Horizontal Derivatives the study area could be divided into two regions based on the degree of distortion to the magnetic signatures the Northern and the Western edge of the area is covered by short wavelength magnetic anomalous signatures that are the characteristic of outcrop and shallow intrusive magnetic bodies, while the remaining part of the study area is characterized by medium to long wavelength magnetic signatures that are attributes of deep sited magnetic rocks in areas of medium to thick sedimentations. Result of the Analytical Signal which is in local amplitude reveals regions with outcrop of magnetic rocks having amplitudes ranging from 0.230 to 0.40 (shown as pink color), area with magnetic rock intruding into sedimentary formations at shallow depths, with amplitudes ranging from 0.094 to 0.229 cycles (shown as red color), while regions with magnetic rock intruding into sedimentary formations at greater depths, having very low amplitudes ranging from -0.085 to 0.055 cycles (shown in yellow to green color). Analyses due to CET grid analysis equally reveal the basement rocks to the North and Southern edge of the study area. Intrusions into the sedimentary formation are also revealed. The research discovered that the lower (southern) part of the area (on Angba and Otukpo area) shows structures (Basaltic rocks) that intrude into the basement which could have predate the sedimentation period, several fracture and fault lines are detected on the CET map, most prominent among them is that at the Southeastern corner of the area which trends NE-SW which can be attributed to an onshore extension of Charcots fault zone , and that which trends N-S is a fault line that controls the course of River Niger. These three features are responsible for the depressions where sediments can accumulate.Item 2D ELECTRICAL RESISTIVITY IMAGING INVESTIGATION ON CAUSES OF ROAD FAILURE ALONG KUTIGI STREET, MINNA, NORTH CENTRAL, NIGERIA(American Journal of Innovative Research and Applied Sciences. ISSN 2429-5396 I www.american-jiras.com, 2018) ADETONA, Adebayo Abbass, Joshua Ebuga Peter, Rafiu A.A., Udensi E.E, Salako K. A, Alhassan U.DBackground: Road failure is most common in developing countries and this has led to the loss of billions of dollars over decades due to either poorly constructed road and under maintained roads. The consequent daily loss of human life and economically significant properties, should make road failure an alarming issue to the Nigerian Government. A proper geophysical investigation must be conducted on the road to examine the subsurface soil characteristics Objectives: Consequently, this study investigate the causes of road failure along Kutigi Street to determine the geo-electric properties of the subsurface of the study area. Methods: The technique employed for this study was 2D Electrical Resistivity Wenner Array Method. Two profiles covering a distance of 300 meters each were established parallel to the road pavement along the stable and unstable sections of the road. Data were collected along the two profile using ABEM Terra meter SAS 4000. The observed field data were processed and inverted using 2-D modelling inversion algorithm (RES2DINV Software). Results: The results reveals the presence of low resistivity values at several portion of both profile A and Profile B. Resistivity values ranging from 9.25 Ωm – 115.30 Ωm to a depth of 11.25 m from the topsoil was observed along profile A and resistivity values ranging from 5.20 Ωm – 25.6 Ωm to a depth of 11.25 m from the topsoil was observed along profile B. Conclusions: The low resistivity values observed in both profiles comprises of expansive clay and sandy clay materials which has the tendency of absorbing water. These makes them swell and eventually collapse under imposed wheel load stress which leads to failure. Regions of the road with sandy and clayey materials should be excavated from the subsurface to a depth of 4 m – 6 m from the topsoil of the road and replaced with competent fill materials.Item Geoelectrical Investigation of Groundwater Potential, at Bosso Campus, Minna, Niger State, Nigeria(Science Publoshing Group, 2019) ADETONA, Adebayo AbbassAbstract: Geoelectrical investigation of groundwater potential has been carried out at Bosso Staff Quarters Bosso campus, Federal university of Technology, Minna. The area is situated on latitude 90 38’55.8”N and 90 39’29.0”N and longitude 6031’19.7”E and 6031’46.7”E. the survey was carried out with the aim of delineating the potential area for groundwater development and depth to the groundwater within the study area. The Schlumbeger array was used to sound six profiles with a total of 36 Vertical Electrical Sounding (VES) points. The sounding interpretation results were used to generate geoelectric section. The orresponding geologic section were also generated which revealed the existence of three subsurface layers. These layers revealed the existence of three subsurface layers. These layers comprise the top soil, weathered/fractured basement and fresh basement. The results of this analysis are presented as curves of apparent resistivity versus depth, from the digitalized curves obtained from the IP2WIN software, sulfur 11 was used to generates iso-resistivity map at different depth. The analysis of results shows that the area is not appropriate for borehole drilling.