Geochemical Characteristics of Stream Sediments and Rocks for Gold Mineralization Potential Around Okeigbo-Epe and Its Environs, Southwestern Nigeria

International Journal of Geoinformatics and Geological Science

© 2025 by SSRG - IJGGS Journal

Volume 12 Issue 1

Year of Publication : 2025

Authors : Kouame Saint Blanc Kouassi, Isibor Roland, John Ogbole, Abdou wahidou Seidou

10.14445/23939206/IJGGS-V12I1P103

How to Cite?

Kouame Saint Blanc Kouassi, Isibor Roland, John Ogbole, Abdou wahidou Seidou, "Geochemical Characteristics of Stream Sediments and Rocks for Gold Mineralization Potential Around Okeigbo-Epe and Its Environs, Southwestern Nigeria," SSRG International Journal of Geoinformatics and Geological Science, vol. 12,  no. 1, pp. 23-37, 2025. Crossref, https://doi.org/10.14445/23939206/IJGGS-V12I1P103

Abstract:

This study investigates the potential for gold mineralization around Okeigbo-Epe and its environs in Ondo state, southwestern Nigeria, addressing the region’s limited research on gold occurrences. Landsat-9 OLI 2 was processed using the False Colour Composite technique for lithology and lineament mapping. Geological field mapping was carried out, and 5 rock samples and 20 stream sediments were collected. Geochemical analysis of stream sediments and rock samples was performed using Inductively Coupled Plasma Mass Spectrometry and Instrumental Neutron Activation Analysis (ICPMS-INAA) for major oxides and trace element determination. Key findings include the occurrence of NE-SW, NNE-SSW, and NW-SE trending lineament indicative of tectonic activity during the Pan-African orogeny. The Lithology within the study area includes granite, banded gneiss and quartzo-feldspathic rocks. The rock samples were highly siliceous, while the gold concentration was low (<5ppb). The R-mode Factor analyses indicate the presence of sulfur minerals, Zircon, and monazite. Pathfinders like Co (3 23ppm), Cu (9-19ppm), Pb (12-22ppm), and Zn (10-94ppm) were found in noticeable concentrations. La (1.6-182ppm) and Ce (5-317ppm) anomalies were found, indicating a promising area for REE exploration. Integrating remote sensing and geochemical data proved effective in characterizing the area’s geology and lineament structures, trace element geochemical signature, and mineralization potential.

Keywords:

Gold, Landsat-9 OLI (2), False colour Composite Technique, Lineament mapping, Mineralization potential, Okeigbo-Epe Southwest Nigeria.

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