Lithological and hydrothermal alteration mapping using Terra ASTER and Landsat-8 OLI multispectral data in the north-eastern border of Kerdous inlier, western Anti-Atlasic belt, Morocco

• Autorzy: Jellouli Amine , Chakouri Mohcine , Adiri Zakaria , El Hachimi Jaouad , Jari Abdessamad

Identyfikatory

DOI

10.2478/arsa-2025-0002

• Języki publikacji: EN

Abstrakty

EN

The copper belt of Anti-Atlas is recognized with several mineral occurrences of Cu, Zn, Mn, Ag, Au, and iron. We used ASTER and OLI in lithological and mineral detection and mapping. The lithological mapping was performed using principal components analysis (PCA), minimum noise fraction (MNF), and two classifiers: maximum likelihood (ML) and support vector machine (SVM). The hydrothermally altered zones were detected based on ASTER VNIR/SWIR bands by the integration of Ninomiya indices and constrained energy minimization (CEM) algorithm. In our study area, the enhanced band combinations of ASTER MNF1, PC4, and PC2 and OLI MNF1, PC5, and PC3 were applied for lithological discrimination. The OLI and ML classification shows the best lithological mapping accuracy with an overall accuracy of 91.74% and a 0.90 Kappa coefficient, followed by SVM with an overall accuracy of 88.82% and a 0.86 Kappa coefficient using the same sensor. The hydrothermal alteration mapping reveals alunite, chlorite, calcite, epidote, illite, kaolinite, montmorillonite, muscovite, and pyrophyllite minerals, principally in phyllic and argillic altered areas. The adopted methodology for lithological and mineralogical mapping can be used in other regions with similar criteria to the study area.

Słowa kluczowe

EN

Terra ASTER; Landsat 8 OLI; spectral indices; CEM; Anti-Atlas

• Wydawca: Centrum Badań Kosmicznych PAN ; De Gruyter
• Czasopismo: Artificial Satellites : Journal of Planetary Geodesy
• Rocznik: 2025
• Tom: Vol. 60, No. 1
• Strony: 14--36
• Opis fizyczny: Bibliogr. 60 poz., rys., tab.

Twórcy

autor

Jellouli Amine

• Geomatics, Georesources and Environment Laboratory, Sultan Moulay Slimane University, Faculty of Sciences and Techniques, Beni Mellal, Morocco

autor

Chakouri Mohcine

• Geomatics, Georesources and Environment Laboratory, Sultan Moulay Slimane University, Faculty of Sciences and Techniques, Beni Mellal, Morocco

autor

Adiri Zakaria

• Laboratory of Geo-Heritage, Geo-Environment and Mineralogical and Hydrological Prospecting, Faculty of Sciences, University Mohammed Premier, Oujda, Morocco

autor

El Hachimi Jaouad

• Geomatics, Georesources and Environment Laboratory, Sultan Moulay Slimane University, Faculty of Sciences and Techniques, Beni Mellal, Morocco

autor

Jari Abdessamad

• Geomatics, Georesources and Environment Laboratory, Sultan Moulay Slimane University, Faculty of Sciences and Techniques, Beni Mellal, Morocco

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki (2025).