Intrusion-related gold mineralization: Inata gold deposit, Bélahourou district, Northern Burkina Faso (West-Africa)

Ilboudo, Hermann; Sawadogo, Sâga; Traoré, Abraham Seydoux; Sama, Martial; Wenmenga, Urbain; Lompo, Martin

doi:10.1016/j.jafrearsci.2018.05.015

Cited by 6 publications

(1 citation statement)

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“…Based on the spatiotemporal and lineament analyses of the Bouda site, we propose five prospecting corridors based on the continuity and parallelism of the extraction zones (North and South) and their correlation with lineament densities (Figure 18). The use of remote sensing tools for exploration is promising but cannot entirely replace field investigations (Augustin & Gaboury, 2017;Baratoux et al, 2011;Ilboudo et al, 2017Ilboudo et al, , 2018Naba, 2007). As a result, the five prospecting corridors will need to be verified or field-checked in a more favorable security context to confirm the continuity of the mineralization at the Bouda site.…”

Section: Discussionmentioning

confidence: 99%

Structural Controls of the Expansion of Small‐Scale Artisanal Gold of Bouda Area (Kaya‐Goren Green Belt, Burkina Faso) From Remote Sensing

Dao,

Ilboudo,

Baratoux

2024

Earth and Space Science

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Small‐scale artisanal mining is a vital sector of the economy of Burkina Faso. This activity, correctly regulated, remains essential for the population despite security issues since 2015. Exploration of new areas for gold mining in this condition is difficult but essential to continue extractive activities. It is, therefore, important to define viable corridors, with science‐based evidence for the good prospects, to support artisanal miners’ activities in a way that minimizes the environmental impact. We describe a remote sensing approach to study the structural control of expanding small‐scale artisanal gold activity at the Bouda site and define future mining corridors. This remote sensing approach can also mitigate and remedy environmental impacts. The Minimum Noise Fraction (MNF) is applied to Landsat images (7‐ETM+, 5‐TM, and 8‐OLI, respectively, for 2000, 2011, and 2022) to detect extraction sites and perform a spatiotemporal analysis of the expansion of areas affected by gold extraction. The near‐infrared and mid‐infrared bands of Landsat images significantly contribute to detecting extraction areas. A morphological study of the site over time and Principal Component Analysis (PCA) on Landsat 8‐OLI enable us to perform a lineament analysis. The expansion of mining activity is structurally controlled, as revealed by the correlation between gold occurrences and high lineament densities, especially in the dominant NE‐SW direction. These analyses suggest five potential prospecting corridors in the Bouda site.

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Section: Discussionmentioning

confidence: 99%