Scholarly work in the Department of Geology and Mineral Sciences

Permanent URI for this collection

https://repository.crawforduniversity.edu.ng/handle/123456789/27

Browse

Browsing Scholarly work in the Department of Geology and Mineral Sciences by Author "Fagoyinbo Victor Oludare"

Now showing 1 - 3 of 3
  • Thumbnail Image
    Item
    Assessment of Groundwater Quality in Parts of Ijoko Area, Sango-Otta Axis of Southwestern Nigeria
    (Scientific Review, 2019) Dairo Victoria Abiola; Fagoyinbo Victor Oludare; Mac-tyger Godson
    A total of 26 water samples comprising of well, river and borehole waters were subjected to physico-chemical tests to evaluate its quality. The result of the physical characteristics shows that the average pH value, total dissolved solid and electrical conductivity is 4.9, 1027.31mg/L and 1526.92mg/L respectively. Thus, relatively above the desirable limit for drinking water while the ionic dominance of the major cations and anions reveal high concentration of Na+ and Cl- amidst other ions in the order of Na+>Ca2+>Mg2+> K+ and Cl->HCO3- > SO42- respectively wherein the water was classified as belonging to Na-Cl facies and unsuitable for irrigation purpose.
  • Thumbnail Image
    Item
    Effects of Weathering and Erosion on the Geochemistry Of Rocks And Soils
    (International Journal of Scientific Research in Science and Technology, 2017) Fagoyinbo Victor Oludare
    This paper seeks to find the effects of weathering on the geochemistry of rocks and soils. Weathering is characterized by physical disintegration and chemical decomposition of rocks. This is associated with structural transformation of the minerals which make up the rocks. Contact of rocks with either or both water and oxygen promote weathering. Weathering and erosion occur in the upper portion of the Earth’s crust and affects igneous, metamorphic and sedimentary rocks. The most common chemical elements in the crust are oxygen, silicon and aluminous and they are all prone to weathering. Also, the most common minerals are feldspars, quartz, pyroxenes and amphiboles and these, also, are prone to weathering. Weathering leads to changes in their chemical composition. After weathering, certain minerals disappear while new ones are created. This depends on the resistance of each mineral to weathering. The chemical processes involved in weathering are hydration, hydrolysis, solution, carbonation, oxidation and reduction. Weathering first destroys any relatively weak bonding agents before the products are further subjected to greater disintegration.Weathering leads to increased pH, leaching of alkaline earth cations and leaching of H4SiO4. In some cases, weathering leads to rust which is a reaction between Fe2+ containing compound, H2O and O2. Solution, carbonation and reduction all involves chemical reaction. With all these changes involving chemical reaction, weathering and erosion therefore has positive impact on the geochemistry of rocks and soils of the Earth’s crust.
  • Thumbnail Image
    Item
    Groundwater Contamination and Effective Ways of Rectification
    (International Journal of Information Research and Review, 2016-01) Fagoyinbo Victor Oludare; Dairo Victoria Abiola
    Groundwater contamination is a common occurrence the world over. When it occurs, it is very difficult and expensive to overcome. Since groundwater is a major source of potable water and the most widespread, it is very necessary to explore all avenues to avert its contamination. The impact that contamination has on groundwater, its environment and consumers were discussed. These include health hazard, imbalance in the ecosystem, water scarcity, negative economy and inflation. The various steps to prevent groundwater contamination such as efficient waste disposal method, safe storage and handling of hazardous materials and protection of chemicals or waste from floods and rainfall percolating underground were briefly discussed. Also discussed under prevention are good management of waste products, monitoring of storage tanks and pipelines, well monitoring as well as formulation of an effective Water Policy. The solution to contamination are broadly grouped into two; namely ex-situ and in-situ technologies. Some case studies were analyzed for future references.