@booklet {6838,
	title = {ALBERTI, A., CASTORINA, F., CENSI, P., COMIN-CHIARAMONTI, P. and GOMES, C.B. 2000. Geochemical characteristics of Cretaceous carbonatites from Angola. Journal of African Earth Sciences, 29: (in press).ALLSOPP, H.L. and HARGRAVES, R.B. 1985. Rb-Sr ages and},
	year = {2000},
	note = {ALBERTI, A., CASTORINA, F., CENSI, P., COMIN-CHIARAMONTI, P. and GOMES, C.B. 2000. Geochemical characteristics of Cretaceous carbonatites from Angola. Journal of African Earth Sciences, 29: (in press).ALLSOPP, H.L. and HARGRAVES, R.B. 1985. Rb-Sr ages and palaeomagnetic data for some Angolan alkaline intrusives. Transactions of the Geological Society of South Africa, 88: 295-99.ALVES, C.A.M. 1968. Estudo geol{\'o}gico e petr{\'o}logico do maci{\c c}o alcalino-carbonat{\'\i}tico do Quicuco. Junta de Investiga{\c c}{\~o}es do Ultramar. Lisboa. 1-160. COLTORTI, M., ALBERTI, A., BECCALUVA, L., DOS SANTOS, A.B., MAZZUCCHELLI, M., MORAIS, E., RIVALENTI, G. and SIENA, F. 1993. The Tchivira-Bonga alkaline-carbonatite complex (Angola): petrological study and comparison with some Brazilian analogues. European Journal of Mineralogy, 5: 1001-24.ISSA, A., DOS SANTOS, A.B.R.M.D., RIFFEL, B.F., LAPIDO-LOUREIRO, F.E.V. and MCREATH, I. 1991. Aspects of the geology, petrology and chemistry of some Angolan carbonatites. Journal of Geochemical Exploration, 40: 205-26.LAPIDO-LOUREIRO, F.E. 1968. Sub-volcanic carbonatite structures of Angola. Proceedings, International Geological Congress, Report of the twenty-third Session, Czechoslovakia, 2: 147-61.LAPIDO-LOUREIRO, F.E. 1973. Carbonatitos de Angola. Mem{\'o}rias e Trabalhos do Instituto de Investiga{\c c}{\~a}o Cient{\'\i}fica de Angola, 11: 1-242.TORQUATO, J.R. 1977. Geotectonic outline of Angola. Cahiers de l{\textquoteright}Office de la Recherche Scientifique et Technique Outre-Mer. Paris. S{\'e}rie G{\'e}ologie, 9: 15-34.}
}
