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Géologie et pétrologie des roches du socle à Auta Balefi
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ISBN10: 6209211720
ISBN13: 9786209211720
Publisher: Editions Notre Savoir
Published: Nov 10 2025
Pages: 64
Weight: 0.22
Height: 0.15 Width: 6.00 Depth: 9.00
Language: French
ISBN13: 9786209211720
Publisher: Editions Notre Savoir
Published: Nov 10 2025
Pages: 64
Weight: 0.22
Height: 0.15 Width: 6.00 Depth: 9.00
Language: French
Auta Balefi, situé dans la zone de gouvernement local de Karu de l'État de Nasarawa, au centre-nord du Nigeria, se trouve dans le complexe de socle précambrien sur la feuille de Keffi 208NW. Le complexe de socle nigérian se compose de trois groupes lithologiques principaux: le complexe de gneiss et de migmatites, les ceintures de schistes et les granites plus anciens. Dans la zone d'étude, les roches du socle sont principalement des granites, des gneiss à migmatites, des gneiss granitiques et des schistes. Les études précédentes, notamment celles de Rahaman (1988) et de Dada (2006), se sont concentrées sur la cartographie régionale à l'échelle 1:100 000, ce qui a permis d'obtenir des informations géologiques générales, mais a laissé des lacunes au niveau des détails locaux. Pour remédier à cette situation, la présente recherche met l'accent sur des études géologiques et pétrographiques détaillées à une échelle plus fine de 1:25 000. Une telle approche permet une cartographie plus précise des affleurements et des caractéristiques structurales, tout en mettant en évidence les caractéristiques pétrographiques. Les résultats obtenus permettent non seulement d'approfondir la compréhension de la géologie de la région, mais aussi de contribuer à une connaissance plus large du complexe de socle du Nigeria.
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