Bastnäsite-(Ce) at the Nkombwa Hill carbonatite complex, Isoka District, Northeast Zambia

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Bastnäsite-(Ce) at the Nkombwa Hill carbonatite complex, Isoka District, Northeast Zambia

Journal Article (1997)

Author(s)

J. Zambezi (International Institute for Aerospace Survey and Earth Science)

M Hale (International Institute for Aerospace Survey and Earth Science)

Jack Voncken (TU Delft - Resource Engineering)

J.L.R. Touret (Vrije Universiteit Amsterdam)

DOI related publication

https://doi.org/10.1007/BF01161861 Final published version

To reference this document use

https://resolver.tudelft.nl/uuid:5ec4aba0-8ec0-45c0-9fb2-9042fc20583d

More Info

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Publication Year

1997

Language

English

Issue number

3-4

Volume number

59

Pages (from-to)

239-250

Downloads counter

118

Abstract

Within the Nkombwa Hill carbonatite complex, bastnäsite-(Ce), (Ce,La)CO3F, has been identified as an abundant mineral in xenoliths hosted by late-stage ferrocarbonatite sills and dykes. Bastnäsite-(Ce) occurs as fibrous yellow crystals, about 1 µm in size, replacing monazite and in association with baryte, in a matrix of dolomite. In common with bastnäsite-(Ce) from other locations, the bastnäsite-(Ce) of Nkombwa Hill contains up to 70% RE2O3, almost entirely as light rare-earth oxides. However, Nkombwa Hill bastnäsite-(Ce) is relatively deficient in La and enriched in Pr and Nd.