A Regional Structural Mapping Approach for Mineral Exploration: Application in the Southwestern Region of Burkina Faso
- Open Journal Of Geology , 2025 (1) (15) : 1-21
Résumé
From a harmonized structural map at the scale of a portion of SW Burkina Faso (90 × 80 km2), we targeted prospective zones on the basis of structural criteria and structure-geology relationships. The map was constructed from an aeromagnetic image, and the geology was deduced from old geological maps. The procedure involved extracting the magnetic fabric and deducing the deformation gradients, which led to the identification of shear zones. Analysis and interpretation of the structural geometry of the obtained structural pattern led us to target areas of interference between structures or geology-structures interplays, which are conducive to the deposition of metallic elements. The subsequent overlay of known gold prospects and deposits documented in the region revealed the validity of the predefined prospects. This result reinforces the applicability of the methodology as a first-order regional approach to mineral exploration.
Mots-clés
Magnetic Fabric, Shear Zones, Targeting, Gold Mining Exploration, sWAC, Burkina Faso