LITHOFACIES STUDY OF BIMA SANDSTONE IN GURIN AND ITS ENVIRONS, YOLA SUB-BASIN, NORTHERN BENUE TROUGH, NIGERIA
DOI:
https://doi.org/10.33003/fjs-2026-1005-4950Keywords:
Lithofacies, Petrography, Braided setting, Depositional environment, Fining upwardAbstract
Understanding the distribution of various lithological units, along with the environmental conditions and depositional settings, is essential for building a geological understanding of an area. This study focuses on the lithofacies in Gurin and its environs to enhance geological and paleoenvironmental understanding. The study involved field mapping and laboratory analysis. The mapping involved the identification of rocks, their lithological contacts and sampling while petrographic analysis was performed on the fifteen (15) representative sampled rocks. The rocks in the area are predominantly composed of sandstone and a few volcanic plugs. The study identified five (5) lithofacies within the Bima sandstone: trough cross-bedded sandstone (St), planar cross-bedded sandstone (Sp), ripple cross-laminated sandstone (Sr), parallel laminated sandstone (Sh), and mudstone facies (Fm) in which the planar cross-bedded (Sp) dominated the area. These lithofacies indicate a fluvial depositional setting, specifically a braided river environment, based on the fining upward sequence and primary structures identified. Petrographic analysis revealed that the Bima sandstone is predominantly composed of quartz (70-99%), with minor amounts of feldspars (1-28%) and rock fragments (1-5%). Based on their composition, the sandstones are predominantly quartz arenite with minor subarkosic and arkosic sandstone. Petrographic studies show that the sandstone is predominantly composed of monocrystalline quartz grains with intercrystalline boundaries; the abundance of monocrystalline quartz grains with intercrystalline boundaries suggests derivation from plutonic source rocks. This study provides valuable insights into the lithofacies, depositional environments, and petrographic characteristics of the Bima Sandstone, contributing to the geological understanding of the area.
References
Abubakar, M. B. (2014). Petroleum potentials of the Nigerian Benue trough and anambra basin: a regional synthesis. Natural Resources, 5 (1), 25-58. https://doi.org/10.4236/nr. 2014.51005.
Akande, S. O., Ojo, O. J., Erdtmann, B. D., & Hetenyi, M. (1998). Paleoenvironments, source rock potential and thermal maturity of the Upper Benue rift basins, Nigeria: implications for hydrocarbon exploration. Organic Geochemistry. 29(13), 531-542. http://dx.doi.org/10.1016/S0146-6380(98)00125-9.
Allix, P., & Popoff, M. (1983). The Lower Cretaceous of the northeastern part of the Benue Trough (Nigeria): An example showing the close relationship between tectonics and sedimentation. Bulletin des Centres de Recherches Exploration-Production Elf-Aquitaine, 7, 349-359.
Ashley, G. M. (1990). Classification of large-scale subaqueous bedforms; A new look at an old Problem. Journal of Sedimentary Petrology, 60, 160-172
Cant, D. J. & Walker, R. G. (1976). Development of a braided fluvial facies model for the Devonian Battery Point Sandstone, Quebec. Canadian Journal of Earth Sciences, 13, 102–119.
Carter, J. D., Barber, W., Tait, E. A., & Jones, G. P. (1963). The Geology of parts of Adamawa, Bauchi and Bornu Provinces in North-eastern Nigeria. Bulletin Geological Survey Nigeria, 30, 1-108.
Catuneanu, O. (2006). Principles of sequence stratigraphy. Elsevier.
Compton, R. R. (1962). Manual of Field Geology. John Wiley & Sons.
Finthan, B. & Mamman, Y. D. (2020). The lithofacies and depositional paleoenvironment of the Bima Sandstone in Girei and Environs, Yola Arm, Upper Benue Trough, Northeastern Nigeria. Journal of African Earth Sciences, 169, 103863, 1-11. https://doi.org/10.1016/j.jafrearsci.2020.103863.
Finthan, B., Mamman, Y. D., & Valdon, Y. B. (2023). Facies association and sequence stratigraphic analysis of the lower Cretaceous Bima Formation in Yola arm of the Upper Benue Trough, Northeastern Nigeria. Journal of African Earth Sciences, 198, 104773. https://doi.org/10.1016/j.jafrearsci.2022.104773.
Folk, R. L. (1980). Petrology of sedimentary rocks. Hemphill Publishing.
Guiraud, M. (1990). Tectono-sedimentary framework of the early Cretaceous continental Bima Formation (upper Benue trough, NE Nigeria). Journal of Africa Earth Sciences, 10, 341–353. https://doi.org/10.1016/0899-5362(90)90065-M.
Ingersoll, R. V., Bullard, T. F., Ford, R. L., Grimm, J. P., Pickle, J. D., and Sares, S. W., (1984). The effect of grain size on detrital modes: A test of the Gazzi-Dickinson point-counting method. Journal of Sedimentary Petrology, 54(1), 103-116. https://doi.org/10.1306/212F83B9-2B24-11D7-8648000102C1865D.
Lenhardt, N., Omietimia, E. J., Edegbaia, A. J., Schwark, L., Catuneanu, O., Fairhead, J. D., & Gotze, A. E. (2025). Traversing the rift: A review of the evolution of the West and Central African Rift System and its economic potential. Earth-Science Reviews, 261, 104999. https://doi.org/10.1016/j.earscirev.2024.104999.
Maurin, J. C., Benkhelil, J., & Robineau, B. (1985). Fault rocks of the Kaltungo Lineament Northeastern Nigeria and their relationship with the Benue Trough. Journal of the Geological Society, 143, 587-599. https://doi.org/10.1144/gsjgs.143.4.0587.
Miall, A.D., (1977). A review of the braided-river depositional environment. Earth Science Reviews, 13(1), 1-62. https://doi.org/10.1016/0012-8252(77)90055-1.
Miall, A. D. (1985). Architectural-element analysis: A new method of facies analysis applied to fluvial deposits. Earth-Science Reviews, 22, 261-308. http://dx.doi.org/10.1016/0012-8252(85)90001-7
Miall, A. D. (2000). Principles of Sedimentary Basin Analysis. Third Edition, Springer.
Nwajide, C. S. (2013). Geology of Nigeria’s Sedimentary Basins. Lagos, CSS Publishers.
Opeloye, S. A. (2012). Lithofacies association in the Bima Sandstone of the Upper Benue Trough, Nigeria. The Pacific Journal of Science and Technology, 13(2), 417–427.
Sarki Yandoka, B. M., Abdullah, W. H., Abubakar, M. B., Adegoke, K. A., Maigari, A. S., Haruna, A. I. & Yaro, U. Y. (2017). Hydrocarbon potential of Early Cretaceous lacustrine sediments from Bima Formation, Yola Sub-basin, Northern Benue Trough, NE Nigeria: Insight from organic geochemistry and petrology. Journal of Africa Earth Sciences, 129, 153-164. https://doi.org/10.1016/j.jafrearsci.2016.12.009.
Shettima, B., Abubakar, M. B., Kuku, A., & Haruna, A. I. (2018). Facies analysis, depositional environments and paleoclimate of the Cretaceous Bima Formation in the Gongola subbasin, Northern Benue trough, NE Nigeria. Journal of Africa Earth Sciences, 137, 193-207. https://doi.org/10.1016/j.jafrearsci.2017.10.001
Tukur, A., Samaila, N. K., Grimes, S. T., Kariya, I. I., & Chaanda, M. S. (2015). Two members subdivision of the Bima sandstone, upper Benue trough, Nigeria: Based on sedimentological data. Journal of Africa Earth Sciences, 104, 140–158. https://doi.org/10.1016/j.jafrearsci.2014.10.015.
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Copyright (c) 2026 Useiju James Margimari, Yusuf Dabari Mamman, Yunis Boga Valdon, Amodu Adeniyi
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