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Geochemical Exploration of Sediments in the Toumodi Region: Origin of Metasediments, Geological Dynamics, and Perspectives for Regional Geological History

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Open Journal of Geology 2023年第12期13卷 1255-1270页

作者： n’dri eudes sati tegan Alain nicaise Kouamelan Alphonse Kouakou Yao Ouattara Gbele Ziandjêdé Hervé Siagne Koffi Aléxis n’dri Department of Civil Engineering Geosciences and Geographic Sciences INP-HB Yamoussoukro C&#244te d’Ivoire Laboratory of Geology Mineral and Energy Resources/Training and Research Unit in Earth Sciences and Mineral Resources Félix Houphou&#235t-Boigny University Abidjan Ivory Coast

The region of Toumodi, located in the heart of the West African Craton, is renowned for its geological complexity. This geochemical study delves into the origin of siliciclastic sediments and the geodynamic context of their formation. The study reveals that Toumodi’s sediments exhibit an intriguing mineralogical composition, with indications of a dual source of parent rocks, one rich in quartz and the other poor in quartz. Furthermore, geochemical analysis highlights a variation in sediment maturity from west to east, indicating the coexistence of distinct geotectonic environments in the region. In the eastern part of the Toumodi region, a passive margin is defined characterized by sediments with an abundance of quartz, while to the west, an active margin is observed with sediments having a lower quartz content. This arrangement suggests the presence of a potential suture zone in the region. This geological complexity underscores the importance of further research to better understand the origin of sediments and the processes that have shaped them. Moreover, this study sheds new light on the fascinating geology of Toumodi, but many questions remain to be explored.

关键词： Toumodi Birimian Siliciclastic Sediments Sediment Maturity

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