Trace elements in corundum, chrysoberyl, and zircon: Application to mineral exploration and provenance study of the western Mamfe gem clastic deposits (SW Cameroon, Central Africa)
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- 作者：Nguo Sylvestre Kanouoa ; b ; sylvestrekanouo@yahoo.fr" class="auth_mail" title="E-mail the corresponding author ; skdasse@gmail.com" class="auth_mail" title="E-mail the corresponding author ; Emile Ekomanec ; Rose Fouateu Yonguec ; Emmanuel Njonfangd ; Khin Zawe ; Ma Changqianb ; Tanwi Richard Ghogomuc ; David R. Lentzf ; Akella Satya Venkateshg
- 关键词：Cameroon ; Mamfe ; Indicator minerals ; Geochemistry ; Genesis ; Mineral exploration
- 刊名：Journal of African Earth Sciences
- 出版年：2016
- 出版时间：January 2016
- 年：2016
- 卷：113
- 期：Complete
- 页码：35-50
- 全文大小：3391 K
文摘
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Three indicator minerals from western Mamfe are geochemically characterized to determine their source rocks.
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Corundums are blue, yellow and greyish-green mainly sorted alkaline magmatic rocks.
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Significant Ti, Ta and/or Nb content in some blue grains suggest the enrichment of those elements in their source magma.
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The Sn, Ta and Ti enrichment in most of the chrysoberyls suggests that they were grown in Sn–Ta–Ti enriched granitic pegmatites.
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The trace elements abundance and REE anomalies in zircons suggest that they were sorted granitoids, syenites and kimberlites.