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Minerals 2018, 8(5), 194;

Trace Element and U–Pb Core Age for Zircons from Western Meiganga Gold Placer, Cameroon: Their Genesis and Archean-Proterozoic Sources

Department of Mining Engineering and Mineral Processing, Faculty of Mines and Petroleum Industries, University of Maroua, Maroua 46, Cameroon
Department of Earth Sciences, University of Yaoundé I, Yaoundé 812, Cameroon
Department of Civil Engineering, The University Institute of Technology, University of Douala, 8698 Douala, Cameroon
Department of Applied Geology, Indian Institute of Technology (Indian School of Mines), Dhanbad 826004, India
Author to whom correspondence should be addressed.
Received: 4 March 2018 / Revised: 24 April 2018 / Accepted: 25 April 2018 / Published: 4 May 2018
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Trace element concentrations and U–Pb ages were obtained using Laser Ablation Split Stream Method from the core of 115 zircon grains from the western Meiganga gold placer deposit. The data was used to characterize zircon, to understand the history of crystallization and to locate source rocks within the local and regional geological settings. Zircon trace element geochemistry was used to distinguish between magmatic and metamorphic affinity. The magmatic zircons have characteristics compatible with their probable origin from granitoid, syenite, tonalite, charnockite and mafic to ultramafic rocks. The metamorphic zircons composition is compatible with growth from anatectic melts and by sub-solidus crystallization in equilibrium with garnet. The zircon ages reveal Archean, Paleoproterozoic, Mesoproterozic, and Neoproterozoic events with the principal source could mainly belong to Paleoproterozoic magmatic lineage. Some of the Paleoproterozoic magmatic zircons were probably sourced from two mica granite found within the local geology, whereas the remaining zircons have features indicating source rocks within the Congo Craton. We suggest that the geologic history of these zircons is related to crustal-scale magmatic and/or tectono-metamorphic events, possibly linked to Eburnean and Pan-African orogeny. View Full-Text
Keywords: Western Meiganga; gold placer; detrital zircon; geochronology; Archean Western Meiganga; gold placer; detrital zircon; geochronology; Archean

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Kanouo, N.S.; Ngueutchoua, G.; Kouske, A.P.; Yongue, R.F.; Venkatesh, A.S. Trace Element and U–Pb Core Age for Zircons from Western Meiganga Gold Placer, Cameroon: Their Genesis and Archean-Proterozoic Sources. Minerals 2018, 8, 194.

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