Mapping and Characterization of iron ore deposits in Bikilal area, West Wollega Zone, Oromia, Ethiopia
DOI:
https://doi.org/10.20372/star.v8i2.03Keywords:
Magnetic method, Iron Ore, Magnetic Anomaly, 2D ERT, resistivityAbstract
The ground magnetic survey and 2D electrical resistivity imaging methods were carried out to map and characterise the iron ore deposits in the Bikilal area, West Wollega Zone, Ethiopia. The magnetic data were collected using a protonprecession magnetometer and the 2D electrical resistivity imaging with the SYSCAL R1 PLUS Switch-72, respectively. The magnetic data points have a spacing of 50m along each of the five profiles. The Wenner electrode configuration was applied to collect the 2D electrical resistivity imaging data points along the same profiles. The magnetic field data were processed and analysed by Oasis Montaji software, while the electrical resistivity data were filtered, analysed, and processed by Prosys-II and RES2DINV software. The results of the magnetic analysis mapped the mineralized zones and indicated the iron ore deposits in the south-west, north-east, and central parts of the study area. The results of the ERT showed that the depth of iron ore deposits ranges from 7m to 16 m, with an average depth of 9m on the survey profiles and a thickness of 8m to 30.8m. The integrated results of magnetic and 2D resistivity methods mapped and characterised the potential occurrence of iron ore deposits as the response of high magnetic intensity and low resistivity in the study area. Finally, the depth and thickness of the iron ore deposits were delineated and mapped.
Downloads
Metrics
References
Allen, A., & Tadesse G. (2003). “Geological setting and tectonic subdivision of the Neoproterozoic orogenic belts of Tulu Dimtu, Western Ethiopia,” Journal of African Earth sciences, 36, 329 -343
Al Dulaymi, A. S., Al-Heety, E. A. R. & Hussien,B. M. (2012). “Geo-Electrical Investigation of Mullusi quifer, Rutba, Iraq.” International Journal of Geosciences, 3(3), 549-564.
Binyam Woldemariam. (2008). The Neoproterozoic crustal evolution and magmatism of the Western Ethiopia Shield in Ghimbi-Nedjo region, Ethiopia; geochemical isotopic and geochronological constraints (Ph.D Thesis), Department of Geosciences, Shimane University, Japan
Fon, A. N., Che, V. B., & Suh, C. E. (2012).
Application of Electrical Resistivity and Chargeability Data on a GIS Platform in Delineating Auriferous Structures in a Deeply Weathered Lateritic Terrain, Eastern Cameroon. International Journal of Geosciences, 3, 960-971
Ghebre, W.M. (2010). Geology and Mineralization of Bikilal phosphate deposit, Western Ethiopia, implication and outline of gabbro
intrusion to East Africa zone. Iranian Journal of Earth Sciences, 158-167. Gordon, R.B. (1996). American Iron 1607- 1900.The Johns Hopkins. University Press. Karim, H.H., Alwan, I.A.K., & AlNeami, M.A., (2013).Characteristics of
D-electrical resistivity imaging survey for soil. Engineering &Technical Journal, 31(19), 70-89.
Lawan, A.M. (2018). Characterization of the Iron Ore Deposit Using 2D Resistivity Imaging and Induced Polarization Technique at Diddaye-Potiskum Area, Northeastern Nigeria
Lindgren and Waldemar. (1933). Mineral Deposits (4th edition), New York: McGraw- Hill, 129
Loke, M. (2000). Electrical imaging surveys for environmental and engineering studies. A practical guide to 2-D and 3-D surveys
Octova, A. & Yulhendra, D. (2017). Iron ore deposits model using geo-electrical resistivity method with dipole-dipole
array! [Paper presentation]. MATEC Web of Conferences, Bangka Island, Indonesia
Ratnakumari, Y., Rai, S. N., Thiagarajan, S. & Kumar, D. (2012). 2D Electrical resistivity imaging for delineation of deeper aquifers in a part of the Chandrabhaga river basin, Nagpur District, Maharashtra, India. Current Science, 102(1), 61-69.
Rosli, S., Imran, A., & Ahmad, S.M. (2012).The Study of Iron Ore Prospect using 2-D Resistivity and Induced Polarization (IP) Method , Geophysics Section, School of Physics, University of Sains, Penang, Malay
Tadesse S. (2006). Mineral resources potential of Ethiopia. Addis Ababa, 212
Teikeu, W. A., Ndougsa-Mbarga, T., Njandjock, P. N., & Tabod, T. C. (2012). Geoelectric Investigation for Groundwater Exploration in Yaounde Area, Cameroon. International Journal of Geosciences, 3(3), 640-649.
Downloads
Published
How to Cite
License
Copyright (c) 2019 Journal of Science, Technology and Arts Research
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
STAR © 2023 Copyright; All rights reserved
