@inproceedings{inproceedingsa02f7464,
title   = {49Ar/39Ar dates in the central Cordillera of Colombia:: evidence for an upper triassic regional tectonomagmatic event},
author = {Vinasco Vallejo, César Javier and Cordani, Umberto G. and Vasconcelos, Paulo Marcos},
year = {2001},
publisher = {Sociedad Geológica de Chile},
booktitle   = {South American Symposium on Isotope Geology}
}