Interpretation of remote sensing and aeromagnetic data to depict the structural framework of the transitional zone between the Igarra Schist belt and Anambra Basin, Nigeria

• Autorzy: Salawu, Naheem Banji
• Języki publikacji: EN

Abstrakty

EN

High-resolution aeromagnetic and Landsat-8 data were utilized for the structural investigation of the Igarra Schist Belt located where the Precambrian crystalline basement is unconformably overlain by the late-Cretaceous Anambra Basin fill. Analysis of the Landsat-8 data exhibits major lineaments that trend in E–W, ENE–WSW, NNW–SSE and N–S directions. Results from the analysis of total field anomaly data using total gradient amplitude and tilt angle of the horizontal gradient also show these same lineament trends. The superimposition of Landsat-8 and aeromagnetic data-derived lineaments resulted in the mapping of the regional lineaments, which provide clues to structurally controlled gold mineralization in the Igarra Schist Belt region. Details mapped from the remote sensing data show surface contacts that correspond to the boundary between the Igarra Schist Belt and Anambra Basin mapped from aeromagnetic data. The source parameter imaging of the aeromagnetic data provides depth estimates of the magnetic basement of the Igarra Schist Belt and Anambra Basin, which varies from 50 to above 650 m. The integration of the remote sensing and aeromagnetic lineaments with the 3-D Euler deconvolution results reveals that the locations of cluster solutions alignment with lineaments are target areas for gold mineralization, which is correlative to gold occurrences in the region.

Słowa kluczowe

PL

dane aeromagnetyczne; złoto; dorzecze Anambry; dane teledetekcyjne; Pas z łupków Igarra

EN

aeromagnetic data; gold; Anambra Basin; remote sensing data; Igarra Schist Belt

• Czasopismo: Acta Geophysica
• Rocznik: 2023
• Tom: Vol. 71, no. 1
• Strony: 227--246
• Opis fizyczny: Bibliogr. 43 poz.

Twórcy

autor

Salawu, Naheem Banji

• BS Geophysical and Consultancy Ltd., Ilorin, Nigeria,
• Department of Geophysics, Federal University Oye-Ekiti, Oye-Ekiti, Nigeria

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).

Identyfikatory

DOI

10.1007/s11600-022-00915-3