Transition Features from Basement Complex to Sedimentary Basin at Lafiagi and Pategi Imply Mineralisation Potentials
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The regions surrounding Lafiagi and Pategi are geologically composed of southwestern basement complex and Bida sedimentary basin. The region is a transition zone or geological boundary with features that could be probed for mineral potentials. Structurally, the region is characterised with intense weathering, fracturing, lithological deformation and shearing of geological materials underlying the region. Notably is the submerging of the long trailing Ife-wara and Iweraja fault lines at the edge of the sedimentary region. Result of First vertical derivative indicates severe distortion to magnetic signatures at the southern regions while little or no magnetic closures were detected in the larger northern regions. The distortions to magnetic signatures signify near surface structures that could be host to minerals. Corroborating evidence of mineral potential within study area was presented via Potassium_eThorium ratio and F_parameter analysis. Both analysis utilising radioactive elements were produced from gamma-ray spectrometric survey data of Lafiagi and Pategi. The K-eTh ratio and F_parameter is meant to delineate regions affected by hydrothermal alterations which is a core process in solid mineral deposition. The integrated analysis of airborne magnetic and gamma-ray spectrometric data indicated regions of geological structures coinciding with hydrothermal alteration zones to be prospective for mineral deposits. The mapped regions include Yikpata, Bankole, Aiyetoro, Oloruntele and Babanla on the western regions; a large central region enclosed by Awere, Ndaniku, Danikun, Kokodo, Likpata and Lafiagi; also, Okolushe-Egboro and Erufu on the south eastern regions.