Chemical and Mineralogical Studies of Gold-bearing Rock in Iperindo, Ilesha Goldfield, Southwest Nigeria
American Journal of Nanosciences
Volume 5, Issue 4, December 2019, Pages: 43-47
Received: Oct. 22, 2019;
Accepted: Nov. 21, 2019;
Published: Nov. 26, 2019
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Adetula Yomi Vincent, Department of Metallurgical and Material Engineering, Federal University of Technology, Akure, Nigeria
Ozah Blessing, Department of Metallurgical and Material Engineering, Federal University of Technology, Akure, Nigeria
Alabi Oladunni Oyelola, Department of Metallurgical and Material Engineering, Federal University of Technology, Akure, Nigeria
Marindoti Damilola Missturah, Department of Metallurgical and Material Engineering, Federal University of Technology, Akure, Nigeria
John Ade Ajayi, Department of Metallurgical and Material Engineering, Federal University of Technology, Akure, Nigeria
This paper provides chemical and mineralogical studies on Gold-bearing rock ore. The samples used was sourced from Iperindo at Ilesha Local Government Area of Osun state, Nigeria. 500g of the ore was weighed using digital weighing balance. The samples were crushed and ground until 80% passing of 75 μm sieve. The ground ore was blended homogeneously before the analysis while for the ore microscopic study, true fraction representative gold-bearing rock samples were prepared as polished mounts and characterized using Scanning Electron Microscope–Energy Dispersive X-ray (SEM/EDX). X-ray Fluorescence (XRF) was used to determine the chemical composition while identification of the associate mineral phase was done using X-ray Diffraction (XRD) technique. From the optical microscopy and SEM/EDX study, the gold grain was found embedded in the quartz and spotted interlocked in feldspar within a microscopic size level while a fracture type of surface morphology was observed which shows a protuberant quartz-feldspar veins texture. XRD shows the mineral phases of quartz, dolomite, sylvite, annite. The traces of K, Ba and Rb, in this compound shows that the ore is a typical mesothermal gold deposit. Hence, the gold is finely disseminated on the silicate mineral and this characteristic is unsuitable to be processed by physical separation as the microscopic gold will tend to be lost during processing. However, a sustainable processing method such as froth flotation can be proposed to overcome this problem.
Adetula Yomi Vincent,
Alabi Oladunni Oyelola,
Marindoti Damilola Missturah,
John Ade Ajayi,
Chemical and Mineralogical Studies of Gold-bearing Rock in Iperindo, Ilesha Goldfield, Southwest Nigeria, American Journal of Nanosciences.
Vol. 5, No. 4,
2019, pp. 43-47.
Alabi O. O, Shehu A. Y, George T. D., Ferdinand A., Emmanuel T. D (2015) “Determination of Work Index of Gyel-Bukuru Columbite Ore In Plateau State, Nigeria” Journal of mineral and materials characterization and Engineering, Vol 3 pp 194-203.
Adetula Y. V., Ozah B., Alabi O. O., Ajayi J. A., Akoja A. (2019) “Determination of Work Index for Iperindo Lode Gold Deposit at Ilesha Goldfield Osun State, Nigeria Using Modified Bond Index”, American Journal of Materials Synthesis and Processing. Vol. 4, No. 1, pp 37-42.
Hagni R. D (1978) “Ore microscopy as applied to ore beneficiation”, Advances in Mechanical Engineering, Vol 10, No. 14, pp 37–38.
Ajayi J. A (2003) “Preliminary investigation on the mineralogical studies of Ilesha, (southwest Nigeria) gold ore’’, Journal of mining and Geology, Vol. 1 No. 37 pp 85-90.
Adekola F. A., Mesubi M. A., Bello A. A., and Bale R. B, (1999) “Extraction of gold from Igun gold ore deposit in Atakumosa area, Osun state, Nigeria’’, Journal of Pure and Applied Science, Vol 9 No. 14, pp 936-945.
Mark G., Aylmore, Kelly M., Brent I. A., McInnes, David F. S., Denis W. R, Reddy, E., Noreen and, Bradley M. (2016) “Proceedings of gold-pm sessions perth, Australia” The Institute for Geoscience Research, Curtin University Australia, Department of Applied Geology. John de Laeter Centre, Faculty of Science & Engineering, Curtin University, Australia, ISBN: 978-0-9925094-7-7, pp 26-27.
Oluwabunmi K. E., Adeleke A. A, Adetunji A. R, Jeje Abioye S. O, Adesina A. A, Ayeni F. A., and Ibitoye F. P (2014) “2k Factorial Experiments on Factors that Influence the Recovery of Gold during the Upgrade of Ilesha-Itagunmodi Gold Ore through Froth Flotation” Journal of Minerals and Materials Characterization and Engineering, Vol 2 pp. 32-39.
M. G., Zagorevski, A. Devine., F. A. M., and E. Humphrey., “A new lode gold discovery at Otter Creek: Another source for the Atlin placers”. In: Geological Fieldwork 2016, British Columbia Ministry of Energy and Mines, British Columbia Geological Survey Paper Vol. 1, pp. 179-193 2017.
Syafiqah W. N. Anuar, Norlia Baharun and Suhaina Ismail (2018) “Significant of Gold Mineralogical Study for The Chemical Separation of Weathered Ore in Malaysia” journal of physics conferences series 1082 012087.
Rusk and Reed M., (2002) “Scanning electron microscope (cathodoluminescence analysis of quartz reveals complex growth) histories in veins from the Butte porphyry copper deposit, Montana,” (Geology), vol. 30, No. 8, pp. 727-730.
Dehghan., G. Peterson, Riehm, and Bromerchenkel L. H., K. (2017)“Application of X-ray microfluorescence for the determination of chloride diffusion coefficients in concrete chloride penetration experiments,” Constr. Build. Mater., vol. 148, pp. 85–95.
Anon, (1994) U.S. Environmental Protection Agency, Technical Resource Document, Extraction and Beneficiation of Ores and Minerals, GOLD, VOLUME 2.
Hausen, D. M. (1985): Process mineralogy of selected refractory Carlin-type gold ores. CIM Bulletin, Vol. 78, No. 881, pp. 83-94.
Syafiqah Anuar W. N., Baharun N. and Ismail S. (2018) “Significant of Gold Mineralogical Study for The Chemical Separation of Weathered Ore in Malaysia” journal of physics conferences series 1082 012087.
Wang K., Zhou L. Sun Y., and Ren C. (1994) “Study on the gold occurrence from severaltypical Carlin-type gold deposits in China”. Publishing House of University of Science & Technology of China, Hefei, pp. 114.
Wang K., Zhou L., Sun Y., and Ren C., (1992) SPM and SEM study on the occurrence of micrograined gold in the Jinya gold deposit”, Guangxi. Chinese Science Bulletin, Vol. 37, No. 22, pp. 1906-1910.
Oyinloye A. O (2006) Metallogenesis of the Lode Gold Deposit in Ilesha Area of Southwestern Nigeria: interference from isotope Systematic Pakistan journal of scientific and industrial research volume 49 No 1.
Akanmu T. I., Oyeyemi O., Ayodele O. S.,(2019) Mineralogical chacterization of The Gold-Bearingnigeria Around Okemesi-Ijero Area, Southwestern Nigeria” Goblal Scientific Journal Volume 7, Issue 1.
Oyinloye A. O and Steed G. M (1996) Geology and and geochemistry of Iperindo gold deposits, Ilesha schist belt, southwestern Nigeria Trans. Instn. Min. Metall. (Set. B. Appl. Earth Sci.) 105: B71-B81.