Comparison of K-Ar and 39Ar-40Ar on granites and on emerald-bearing metasomatites from Campo Formoso and Carnaïba, Bahia, Brazil EUG 6 : sixth meeting of the European Union of Geosciences /Giuliani, Gaston Zimmermann, J.L. Cheilletz, A. Montigny, R. GRANITE GEOCHIMIE DATATION ABSOLUE EMERAUDE 1991 text https://www.documentation.ird.fr/hor/fdi:34842 fdi:34842 Giuliani Gaston, Zimmermann J.L., Cheilletz A., Montigny R.. Comparison of K-Ar and 39Ar-40Ar on granites and on emerald-bearing metasomatites from Campo Formoso and Carnaïba, Bahia, Brazil. In : . EUG 6 : sixth meeting of the European Union of Geosciences 1991, 3 (1), 500 Meeting of the European Union of Geosciences, 6., Strasbourg (FRA), 1991/03/24-28 EN BRESIL BAHIA