U-Pb geochronology and isotopical constraints from the Jurassic Ibagué Batholith (Central Cordillera of Colombia): changing from extension to compression in continental arcs? - Bustamante, Camilo; Archanjo, Carlos José; Cardona, Agustín; Valencia, Victor A; Vervoort, Jeff (South American Symposium on Isotope Geology, 2014)