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Recherches géo-archéologiques dans les zones cuprifères du bassin du Niari en République du Congo

par Nikis, Nicolas ;De Putter, Thierry
Référence Nyame akuma, 84, page (142-153)
Publication Publié, 2015-12

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Résumé :

Archaeological fieldwork has been conducted since three years around the copper deposits of the Niari Basin, in the Republic of the Congo. In the 2015 fieldwork season, a geological survey has focused on the formation of the copper-(lead-zinc) deposits, and on the accessibility of the carbonate ore used to produce copper. Preliminary results suggest that the mineralogy of the exploited deposits influenced the procurement strategy and the ore processing. The archaeological survey confirms that most geological showings have been exploited in the precolonial period, at Boko-Songho, Mfouati and Mindouli. In the latter area, three main production periods have been identified, ranging from the 13th to the 19th centuries AD. Early copper production peaks might coincide with the rise of local kingdoms (e.g. Kongo Kingdom).