scholarly journals Aspects of Geophysical Exploration for Groundwater Using Vertical Electrical Sounding (VES) in Parts of University of Benin, Benin City, Edo State

2014 ◽  
Vol 18 (1) ◽  
pp. 19
Author(s):  
IM Idehai ◽  
AO Egai
Keyword(s):  
Vertical Electrical Sounding ◽  
Geophysical Exploration ◽  
Benin City ◽  
Electrical Sounding ◽  
Edo State

scholarly journals Comparison of Conventional Schlumberger and Modified Schlumberger Arrays in Estimating Aquifer Parameters in A Typical Basement Complex, Southwestern Nigeria

2019 ◽  
Vol 4 (1) ◽  
Author(s):  
Akindeji O Fajana ◽  
Oluseun A Sanuade ◽  
Omolade T Olawunmi ◽  
Ajibola R Oyebamiji
Keyword(s):  
Space Constraint ◽  
Vertical Electrical Sounding ◽  
Electrode Spacing ◽  
Basement Complex ◽  
Southwestern Nigeria ◽  
Aquifer Parameters ◽  
Geophysical Exploration ◽  
Electrical Sounding ◽  
Schlumberger Array

This study compared the interpretation results of the Vertical Electrical Sounding (VES) data acquired using the conventional Schlumberger and modified Schlumberger arrays with a view to assessing the effectiveness of the modified Schlumberger arrays of VES as alternatives to the conventional Schlumberger array at sites with space constraint during geophysical exploration. A total of thirty (30) VES data for both conventional Schlumberger and modified Schlumberger arrays were collected across different rock units within Federal University Oye-Ekiti campus and Irare estate in Oye-Ekiti metropolis, south-western Nigeria, with electrode spacing (

scholarly journals Aquifer characterization using vertical electrical sounding in Auchi polytechnic, Auchi, Edo State, Nigeria

2020 ◽  
Vol 39 (3) ◽  
pp. 925-931
Author(s):  
D.A. Babaiwa ◽  
C.O. Aigbogun ◽  
A.T. Umoru
Keyword(s):  
Apparent Resistivity ◽  
Theoretical Models ◽  
Vertical Electrical Sounding ◽  
Aquifer Characterization ◽  
Clayey Sand ◽  
True Resistivity ◽  
Electrical Sounding ◽  
Edo State ◽  
D Model ◽  
Best Fit

The Schlumberger array method was used to carry out a total of eight (8) Vertical Electrical Sounding (VES) with a spread of 350 m in the study area. The Pasi 16-GL Terrameter was used to acquire the data. The data obtained were analyzed with the Winresist 1.0 software to obtain the curves of best fit to the theoretical models. The modeling program converted the apparent resistivity into true resistivity values in 1-D model curves. Five (5) to seven (7) layers were delineated which correspond to the topsoil, sandy clay, clayey sand, sand, dry sandstone and saturated sandstone. The depth to aquifer ranges from 95.0 to 169.6 m with resistivity values ranging from 324.3 to 1524.7 Ωm. Keywords: Apparent resistivity, Aquifer, lithology and vertical electrical sounding.

Hydrogeophysical Survey of Groundwater Development at Okada Community Ovia North – East L.G.A. Edo State

2018 ◽  
Vol 2 (1) ◽  
pp. 39-45
Author(s):  
M. O. Ehigiator
Keyword(s):  
Global Navigation Satellite Systems ◽  
Geophysical Investigation ◽  
Satellite Systems ◽  
North East ◽  
Long Time ◽  
Electrical Sounding ◽  
Edo State ◽  
Global Navigation Satellite ◽  
Water Problems ◽  
Aquifer Unit

Geophysical investigation was conducted at Okada community in ovia North Local Govertment area of Edo state to determine the prospect of aquifer zone. The Petrozenith PZ-02 Terrameter, one of the Electrical Resistivity Equipment was used to conduct a Vertical Electrical Sounding (VES) in the study area. The Garmin Etrex 10 Global Navigation satellite systems (GNSS) was used to acquire Geodetic coordinates of point where VES observations were made. This research was carried out as a pre-drilling Hydro-geophysical survey conducted for the purpose of surveying and studying the proposed water borehole site at Okada Community that has suffered acute water problems for a very long time. There have been series of boreholes drilled in the studied area but all are dry wells. This survey was conducted to investigate the subsurface complexity of the sites in respect of lithology and to recommend the total drill depth based on the prospective aquifer unit so identified. Result of interpretation suggests that the area is underlain with substantive aquiferous formation but at a depth not exceeding 121.60 m (398.95 ft), which is the lower aquifer unit. The value of elevation at point of observation referenced to mean sea level is 94 m.

A LOW-COST RESISTIVIMETER FOR USE IN PRACTICAL LECTURES OF APPLIED GEOPHYSICS

2016 ◽  
Vol 34 (1) ◽  
Author(s):  
Walter Sydney Dutra Folly ◽  
Aracy Sousa Senra
Keyword(s):  
Electrical Resistivity ◽  
Low Cost ◽  
Test Area ◽  
Vertical Electrical Sounding ◽  
Applied Geophysics ◽  
Resistivity Profile ◽  
Electrical Sounding ◽  
Good Agreement

ABSTRACT. We describe the construction and testing of a simple and efficient low-cost resistivimeter designed for use in practical classes in Applied Geophysics. The equipment was successfully tested in a vertical electrical sounding (VES) performed on sandy terrain within the campus of the Universidade Federal de Sergipe, Brazil. The VES results were in good agreement with the profiles obtained from two boreholes located approximately 500 m from the test area, clearly demonstrating the efficiency of the equipment and the adopted methodology.Keywords: vertical electrical sounding, electrical resistivity, resistivity profile. RESUMO. Neste artigo, descrevemos a construção e o teste de um resistivímetro de baixo custo, simples e eficiente, concebido para ser utilizado em aulas práticas de Geofísica Aplicada. O equipamento foi testado com a realização de uma sondagem elétrica vertical (SEV) em um terreno arenoso localizado no campus da Universidade Federal de Sergipe, Brasil. Os resultados obtidos nesta SEV apresentaram boa concordância com os perfis observados em dois poços de sondagem localizados a 500 m da área de teste, fato que comprovou a eficiência do equipamento e da metodologia adotada.Palavras-chave: sondagem elétrica vertical, resistividade elétrica, perfil de resistividade. 

Assessment of groundwater repositories in Edem, Southeastern Nigeria, using vertical electrical sounding

2021 ◽  
Vol 14 (6) ◽  
Author(s):  
Emmanuel Tochukwu Omeje ◽  
Desmond Onyeka Ugbor ◽  
Johnson Cletus Ibuot ◽  
Daniel Nnemeka Obiora
Keyword(s):  
Vertical Electrical Sounding ◽  
Southeastern Nigeria ◽  
Electrical Sounding
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