Locating zones of possible mineralization potentials in part of southwestern Nigeria has been performed in this work by mapping lithology, structures, and hydrothermal alteration regions from airborne magnetic and radiometric data. Some enhancement techniques such as first vertical derivative, analytic signal, power spectrum, and center for exploration targeting grid and porphyry were used for data analysis and interpretation; in addition, the potassium to equivalent thorium (K/eTh) ratio and ternary radiometric maps were revealed to support the delineation process. The results obtained showed that the area is dominated by NE–SW, NW, NE, EW, and NS structural directions, though the structures trending NE–SW were found to be the most predominant and considered to be orientations of mineral deposits in the area. Depth estimation of shallow and deep-seated magnetic sources of the reduction to the equator (RTE) aeromagnetic data calculated using the analytic signal technique ranged from 270 to 2800 m, while power spectrum gives an average value of 2960 m. In addition, aeroradiometric analysis based on the concentrations of equivalent thorium and equivalent uranium and potassium and on the radiometric ternary map revealed lithological units and hydrothermal alterations within the basement complex. From this study, volcanic intrusions, lineament structures, and hydrothermal alteration zones were delineated. These intrusions resulted from the high content of magnetic anomalies related to the mineralized potential zones in the area. The integration of both magnetic and radiometric maps has revealed an approximate understanding between radiation zones, observed fractures, and faults in the locations between the boundaries of rock types in the study area.

中文翻译：

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集成的航空磁和航空辐射数据，用于描绘尼日利亚西南部部分地区的岩性，结构和热液蚀变带

这项工作是通过从机载磁和辐射数据绘制岩性，构造和热液蚀变区域图来完成的，在尼日利亚西南部地区可能的矿化潜力定位区。一阶垂直导数，分析信号，功率谱以及以网格和斑岩为靶点的勘探中心等一些增强技术被用于数据分析和解释；此外，揭示了钾与当量or（K / eTh）之比和三元辐射图，以支持描绘过程。获得的结果表明，该地区主要由NE–SW，NW，NE，EW和NS结构方向控制，尽管趋势NE–SW的结构被发现是最主要的，并且被认为是该地区矿床的方向。 。使用解析信号技术计算得出的赤道（RTE）航空数据的浅层和深层磁源的深度估计范围为270至2800 m，而功率谱的平均值为2960 m。此外，根据等效equivalent，等效铀和钾的浓度以及放射三元图进行的航空辐射分析表明，地下复合物中的岩性单元和热液蚀变。从这项研究中，划定了火山岩侵入体，构造构造和热液蚀变带。这些入侵是由于与该地区矿化潜在带有关的大量磁异常造成的。磁地图和辐射地图的整合揭示了辐射区域之间的大致了解，