@inproceedings{inproceedings8d1013ed, title = {Radiogenic isotopes in the carbonatitic magmatism from the Parana-Angola-Etendeka system}, author = {Comin-Chiaramonti, P. and Gomes, Celso B. and Ruberti, Excelso and Cundari, Aldo}, year = {2008}, publisher = {IUGS]}, booktitle = {International Geological Congress} }