Abstract            Volume:12  Issue-10  Year-2024         Original Research Articles

Online ISSN : 2347 - 3215 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcret@gmail.com

The characterization of geomagnetic signatures conducted in the Agnibilékrou department (Eastern Côte d’Ivoire) highlights several magnetic anomalies indicating strong mineralization potential. Five aeromagnetic maps (Abengourou 4c and 4d, and Agnibilékrou 1b, 2a, and 2b) were used. These maps, derived from aerial surveys carried out by Kenting Earth Sciences Ltd between 1974 and 1976, were processed using filtering techniques (Butterworth filter, tilt angle filter, and vertical integration filter) to enhance the detection of magnetic anomalies in the subsurface. The magnetic anomalies, referred to as A1 and A2, are consistently observed across the maps and follow a NE-SW orientation, indicating the presence of basic and ultrabasic rocks rich in magnetite, often associated with metal deposits such as iron, nickel, or sulfides containing copper and cobalt. Additionally, sedimentary formations derived from the breakdown of granites, containing magnetite, may contribute to hydrothermal alteration processes, facilitating the formation of gold or polymetallic deposits. The left-lateral faults F1, F2, and F3, identified through distortions in the magnetic field on the maps, could act as circulation channels for hydrothermal fluids, known for transporting and depositing metals. In particular, the right-lateral fault F, which has undergone tectonic reactivation, appears to favor the concentration of metals. The NE-SW orientation of anomalies and fractures aligns with zones prone to hydrothermal alteration, a key process in the formation of gold and sulfide deposits. Finally, some surface-level anomalies, such as A3, highlighted by the tilt angle filter, represent easily accessible targets for mining exploration. This study, therefore, reveals significant mining potential in the area, especially for iron, nickel, and gold, driven by the combination of tectonic structures, magnetized rocks, and hydrothermal processes.

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