BARBER, C. 1974. The geochemistry of carbonatites and related rocks from two carbonatite complexes, south Nyanza, Kenya. Lithos, 7: 53-63.KALT, A., HEGNER, E. and SATIR, M. 1997. Nd, Sr, and Pb isotopic evidence for diverse lithospheric mantle sources of

BARBER, C. 1974. The geochemistry of carbonatites and related rocks from two carbonatite complexes, south Nyanza, Kenya. Lithos, 7: 53-63.KALT, A., HEGNER, E. and SATIR, M. 1997. Nd, Sr, and Pb isotopic evidence for diverse lithospheric mantle sources of East African rift carbonatites. Tectonophysics, 278: 31-45.LE BAS, M.J. 1977. Carbonatite-nephelinite volcanism: an African case history. John Wiley, London. 347 pp.ONUONGA, I.O., FALLICK, A.E. and BOWDEN, P. 1997. The recognition of meteoric-hydrothermal and supergene processes in volcanic carbonatites, Nyanza Rift, western Kenya, using carbon and oxygen isotopes. Journal of African Earth Sciences, 25: 103-13.RANKIN, A.H. 1975. Fluid inclusion studies in apatite from carbonatites of the Wasaki area of western Kenya. Lithos, 8: 123-36.