The Vertical Electrical Sounding (VES) technique was carried out in Alode Community of Eleme Local Government Area in Rivers State to determine the geo-electrical and hydrogeological characteristics of the aquifers present in the area, and to delineate the geo-electric stratigraphy of each VES station.
A total of three (3) VES were carried out with the ABEM Terrameter SAS 300C, using the Schlumberger Configuration. Maximum half-current electrode spread (AB/2) of 1m up to 150m was used, while the half potential electrode separation (MN/2) was maintained between 0.5m and 7.5m. The VES curves were quantitatively interpreted by partial curve matching and computer iteration techniques, using the IP1 WIN computer software.
The results of the interpreted VES data confirm the following stratigraphies: top soil (40.2-65.2Ωm), shale (32.2-86.3Ωm), fine-medium sand (172-204Ωm), medium-coarse sand (532Ωm), and medium sand (417Ωm). Geo-electric sections reveal that the aquiferous units are mostly confined, with depth to aquifer range of 47m for VES 1 and 2 and 21m for VES 3.
Table of Contents
- Chapter One: Introduction
- 1.1 Background
- 1.2 Problem Statement
- 1.3 Aim/Objectives of the Study
- 1.4 Scope of Study
- 1.5 Significance of the Study
- 1.6 Research Methodology
- 1.7 Project Layout
- 1.8 The Study Area
- 1.8.1 Location and Accessibility
- 1.8.2 Climate and Rainfall (Hydrogeology)
- 1.8.3 Geology of the Area
- Chapter Two: Literature Review
- 2.1 Groundwater
- 2.1.1 How Are Aquifers Recharged and Discharged?
- 2.2 The Electrical Resistivity Method
- 2.2.1 Theory of the Electrical Resistivity Method
- 2.2.2 Electrode Configuration
- Chapter Three: Instrumentation and Methodology (Field Procedures)
- 3.1 Introduction
- 3.1.1 Principle of Operation of the ABEM Terrameter SAS 300C
- 3.2 Methodology (Field Procedure)
- 3.2.1 Field Accessories
- 3.3 Factors Affecting Resistivity of Rocks
- Chapter Four: Results and Discussion
Objectives and Key Themes
This project aims to investigate groundwater potential zones in Alode Community, Rivers State, Nigeria, using the electrical resistivity method. The study seeks to determine the geo-electrical and hydrogeological characteristics of the aquifers present, delineate the geo-electric stratigraphy, and evaluate the effectiveness of the electrical resistivity method for groundwater exploration in the area.
- Application of the electrical resistivity method for groundwater exploration.
- Determination of geo-electrical and hydrogeological characteristics of aquifers.
- Delineation of geo-electric stratigraphy in the study area.
- Assessment of groundwater potential zones.
- Evaluation of the suitability of the chosen method for solving groundwater-related problems.
Chapter Summaries
Chapter One: Introduction: This chapter introduces the study's context, highlighting the global water scarcity problem and the importance of groundwater as a reliable water source, particularly in rural areas. It emphasizes the challenges of water contamination in Alode Community due to various factors such as industrialization and haphazard drilling practices. The chapter establishes the research objectives, scope, and methodology, focusing on the application of the electrical resistivity method to identify uncontaminated groundwater zones. The study area's location, climate, and geology are described, providing essential background information for understanding the context of groundwater exploration.
Chapter Two: Literature Review: This chapter presents a comprehensive review of existing literature on groundwater exploration techniques, focusing primarily on the electrical resistivity method. The review covers the fundamental principles of groundwater occurrence, the properties of aquifers (porosity, permeability), and the theory and applications of various electrical resistivity methods like Vertical Electrical Sounding (VES). The chapter discusses different electrode configurations and their suitability for specific geological settings and includes numerous studies that have successfully used the electrical resistivity method for groundwater exploration in various contexts. The significance of this methodology in relation to previous research is highlighted, providing the basis for this study’s approach.
Chapter Three: Instrumentation and Methodology (Field Procedures): This chapter details the instrumentation used in the study, specifically the ABEM Terrameter SAS 300C resistivity meter, and describes its operational principles. It explains the field procedures, including the Schlumberger configuration for VES, the electrode spacing used, and data acquisition and processing techniques using IP1WIN software. The chapter outlines the field accessories used, such as electrodes, cables, and measurement tools. The factors that influence resistivity measurements in different rock types and geological conditions are thoroughly discussed, illustrating the complexities of data interpretation.
Keywords
Groundwater exploration, electrical resistivity method, Vertical Electrical Sounding (VES), Schlumberger configuration, aquifer characteristics, geo-electric stratigraphy, hydrogeological parameters, Alode Community, Rivers State, Nigeria.
Frequently Asked Questions: Groundwater Exploration in Alode Community, Rivers State, Nigeria
What is the main topic of this study?
This study investigates the groundwater potential zones in Alode Community, Rivers State, Nigeria, using the electrical resistivity method. It aims to determine the geo-electrical and hydrogeological characteristics of the aquifers, delineate the geo-electric stratigraphy, and evaluate the effectiveness of this method for groundwater exploration in the area.
What methods were used in this research?
The primary method used is the electrical resistivity method, specifically Vertical Electrical Sounding (VES) with a Schlumberger configuration. The ABEM Terrameter SAS 300C resistivity meter was employed for data acquisition, and IP1WIN software was used for data processing.
What are the key objectives of the study?
The key objectives include applying the electrical resistivity method for groundwater exploration, determining geo-electrical and hydrogeological characteristics of aquifers, delineating the geo-electric stratigraphy, assessing groundwater potential zones, and evaluating the suitability of the chosen method for solving groundwater-related problems.
What are the key themes explored in the study?
Key themes revolve around the application of geophysical methods (specifically electrical resistivity) for groundwater exploration in a specific geographical location (Alode Community), the characterization of aquifers, and the assessment of groundwater potential. The study also considers the challenges of water scarcity and contamination in the area.
What information is provided in each chapter?
Chapter One (Introduction): Introduces the study's context, problem statement, objectives, methodology, and the study area's characteristics (location, climate, geology). Chapter Two (Literature Review): Reviews existing literature on groundwater exploration techniques, focusing on the electrical resistivity method and its theoretical background. Chapter Three (Instrumentation and Methodology): Details the instrumentation used (ABEM Terrameter SAS 300C), field procedures, and data acquisition techniques. Chapter Four (Results and Discussion): Presents and interprets the findings of the study.
What are the key findings expected from this study?
The study is expected to provide information on the geo-electrical and hydrogeological characteristics of aquifers in Alode Community, delineate potential groundwater zones, and assess the effectiveness of the electrical resistivity method for groundwater exploration in this specific geological setting. The results will contribute to a better understanding of groundwater resources in the area and inform sustainable water management practices.
What are the key words associated with this study?
Groundwater exploration, electrical resistivity method, Vertical Electrical Sounding (VES), Schlumberger configuration, aquifer characteristics, geo-electric stratigraphy, hydrogeological parameters, Alode Community, Rivers State, Nigeria.
What is the significance of this study?
The study is significant because it addresses the issue of groundwater scarcity and contamination in Alode Community, offering a practical approach to identifying potential uncontaminated groundwater sources using a cost-effective geophysical technique. The findings can inform water resource management strategies in the region.
- Citation du texte
- Joseph Amadi (Auteur), 2016, Application of the Electrical Resistivity Method in Groundwater Exploration, Munich, GRIN Verlag, https://www.grin.com/document/501569
