Late eocene-oligocene shortening episode in Eastern cordillera of Colombia viewed by emerald dating Géodynamique andine : résumés étendus = Andean geodynamics : extended abstracts = Geodinamica andina : resumenes expandidos Cheilletz, A. /Giuliani, Gaston Arhan, T. GITOLOGIE METALLOGENIE TECTONIQUE ALTERATION HYDROTHERMALE EMERAUDE ORSTOM 1993 text https://www.documentation.ird.fr/hor/fdi:38474 fdi:38474 Cheilletz A., Giuliani Gaston, Arhan T.. Late eocene-oligocene shortening episode in Eastern cordillera of Colombia viewed by emerald dating. In : . Géodynamique andine : résumés étendus = Andean geodynamics : extended abstracts = Geodinamica andina : resumenes expandidos ORSTOM, ). 1993, 473-476 Géodynamique Andine : Symposium International, 2., Oxford (GBR), 1993/09/21-23 EN