Derivation of detrital rutile in the Yaoundé region from the Neoproterozoic Pan-African belt in southern Cameroon (Central Africa)

Henrik Stendal, Sadrack Félix Toteu, Robert Frei, Joseph Penaye, Urbain Olivier Njel, Jean Bassahak, Jean Nni, Boniface Kankeu, Vincent Ngako, Joseph Victor Hell

Publikation: Bidrag til tidsskriftArtikelForskningpeer review

68 Citationer (Scopus)

Abstrakt

Rutile, as an important component in alluvial or eluvial heavy mineral deposits, is known in southern Cameroon. These deposits are underlain by the Neoproterozoic low- to high-grade Yaoundé Group. Geochemical, thermometric, fluid inclusion and Pb isotopic studies of the rutile from alluvial and eluvial concentrates and from medium-grade micaschist from the nearby Yaoundé region permit the following conclusions: (1) alluvial and eluvial rutile of the Yaoundé region are derived from the degradation of metapelites, metamafic rocks and pegmatites of the nearby Yaoundé Group; (2) rutile in the Yaoundé Group formed during the Pan-African metamorphism, or was inherited as detrital rutile from a ∼900 Ma source. The study also shows that the rutile can be used to trace the history of the Pan-African belt north of the Congo craton.

OriginalsprogEngelsk
Sider (fra-til)443-458
Antal sider16
TidsskriftJournal of African Earth Sciences
Vol/bind44
Udgave nummer4-5
DOI
StatusUdgivet - apr. 2006

Programområde

  • Programområde 4: Mineralske råstoffer

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