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Exploration of Potential Ore Deposits along the Cameroon Volcanic Line from Gravity and Magnetic Studies

Open Journal of Geology 2020年第10期10卷 1009-1026页

作者： Fosso Téguia M. Estelle Eric Nana Gaelle Vanessa lepatio tchieg sterve alain Ntomb Biboum Edouard Olivier Eyike Yomba Albert Zanga Amougou alain Atéba Bekoa Ntepe Nfomou Branch for Geophysical and Volcanological Research/Institute for Geological and Mining Research Buea Cameroon University of Douala Faculty of Science Department of Physics Douala Cameroon University of Yaounde 1 Faculty of Science Department of Physics Yaounde Cameroon National Institute of Cartography Yaounde Cameroon

A gravity and magnetic study has been carried out along the continental part of the Cameroon Volcanic Line (CVL), with the aim to explore the possibility of ore’s presence into the basement of this region. Different processing techniques have been applied, including the isostatic residual, the analytic signal and the Euler deconvolution to compute the Bouguer and magnetic anomalies. Following Euler solutions (result of Euler deconvolution) and the analytic signal results, four profiles crossing main structures on the isostatic residual have been used to enhance the structure of intrusions in the studied area. Despite the lack of constraints in the studied region, the results show that the basement is intruded by bodies of different density (2.57 g/cm3 to 2.87 g/cm3), different size and shape, with depths between 1 and 10 kilometers. These bodies have been interpreted as old rocks then as potential reservoirs of rare ores. In addition, volcanic rocks modeled have constituted potential reserves of other ores like graphite, sulfur, copper, iron.

关键词： Ores Deposits Cameroon Volcanic Line (CVL) Gravity Magnetic

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