TY - JOUR
T1 - Bastnäsite-(Ce) at the Nkombwa Hill carbonatite complex, Isoka District, Northeast Zambia
AU - Zambezi, J.
AU - Hale, M
AU - Voncken, Jack
AU - Touret, J.L.R.
PY - 1997
Y1 - 1997
N2 - 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.
AB - 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.
U2 - 10.1007/BF01161861
DO - 10.1007/BF01161861
M3 - Article
SN - 0930-0708
VL - 59
SP - 239
EP - 250
JO - Mineralogy and Petrology
JF - Mineralogy and Petrology
IS - 3-4
ER -