Application of Electrical Resistivity Tomography in Mapping the Lateral Extent of Ohia Kaolin Deposit in Umuahia Southeastern Nigeria
Keywords:
Kaolin, Lateral extent, Permeability, Electric current density, Equipotential linesAbstract
The Electrical Resistivity Tomography of Ohia community in Umuahia for eight (8) profiles located within the coordinates and using Integrated Geophysical Instrument (IGI) for kaolin mapping was carried out. The resistivities obtained from the readings were converted to apparent resistivities and plotted using the RESINVx64 software to infer the electrical responses of the subsurface at the injection of Direct Current (D.C.) through the current electrode of a higher potential. Wenner configuration that is characterized by equidistance between the potential-potential electrodes and the potential-current electrodes was deployed in view of the expected outcome which is the lateral extent of Kaolin deposit. Resistivity inversion of three iterations mapped the subsurface for its electrical responses. Different profiles have different kaolin signatures though with some similarities in some cases. ERT 1 and ERT 3 being deeply buried are close in terms of prospect similarities while ERT 3, ERT 4 and ERT 5 have some similarities in their prospect distributions as deposits become dense southwest ward though discontinuous. ERT 6 and ERT 7 follow similar depositional trend with massive overburden being deeply buried except that the latter has kaolin blended with other rocks. Accessibility to the prospect in ERT 8 would attract less investment because of its closeness to the surface. The lateral spread of kaolin is between 7.5 and 97.5 m with a depth of burial ranging from 1.25 to 9.26m.
Published
How to Cite
Issue
Section
How to Cite
Most read articles by the same author(s)
- Paul I. Aigba, Chijioke I. Oriaku, Henry E. Ohaegbuchu, Ugochukwu Joseph, Chukwunenyoke Amos-Uhegbu, Incandescent Lamp from Black Body Perspective , Nigerian Journal of Physics: Vol. 33 No. 1 (2024): Nigerian Journal of Physics - Vol. 33 No. 1
- Chukwunenyoke Amos-Uhegbu, Samuel Temitope Jokotagba, Paul Igienekpeme Aigba, Obinna Christian Dinneya, Chukwudike Dandy Akoma, Delineation of the Groundwater Potential Zones using Integrated Geospatial Techniques and Multi-criteria Decision Approach in the Cretaceous Lower Benue and Niger Delta Basins of Abia State, Southern Nigeria , Nigerian Journal of Physics: Vol. 33 No. S (2024): Nigerian Journal of Physics - Vol. 33(S)
- Chukwunenyoke Amos-Uhegbu, S. T. Jokotagba, J. D. Mmeka, E. U. Nwokoma, Assessment of Groundwater Potential Zones Using Multicriteria Decision Analysis: A Case Study of Umuahia Areas of Niger Delta Basin, Nigeria , Nigerian Journal of Physics: Vol. 32 No. 3 (2023): Nigerian Journal of Physics - Vol. 32 No. 3
- Kuma Joshua Ayua, Joshua Udoka Ugwu, Martina Onyinye Eze, Spectral Transformation of Aeromagnetic data for Local Sub-Basin Delineation within Parts of the Cretaceous Middle Benue Trough , Nigerian Journal of Physics: Vol. 32 No. 1 (2023): Nigerian Journal of Physics - Vol. 32 No. 1
- Chinkata Joseph Uwaoma, Joshua Udoka Ugwu, Ugochukwu Joseph, Chigozie Emmanuel Nduaka, Specific Heat Capacity, Density and Viscosity Determined Using Different Combinations of Coconut Oil and Palm Kernel Oil , Nigerian Journal of Physics: Vol. 34 No. 2 (2025): Nigerian Journal of Physics - Vol. 34 No. 2