40Ar/39Ar laser-probe dating of the Colombian emerald deposits : metallogenic implications Source, transport and deposition of metals Cheilletz, A. Féraud, G. /Giuliani, Gaston Rodriguez, C.T. GEOCHIMIE MINERALISATION DATATION ABSOLUE METALLOGENIE EMERAUDE Balkema Pagel (ed.) Leroy (ed.) 1991 text https://www.documentation.ird.fr/hor/fdi:43441 fdi:43441 Cheilletz A., Féraud G., Giuliani Gaston, Rodriguez C.T.. 40Ar/39Ar laser-probe dating of the Colombian emerald deposits : metallogenic implications. In : Pagel (ed.), Leroy (ed.), . Source, transport and deposition of metals Balkema, 1991, 373-376 EN COLOMBIE