Early Paleogene magmatism from the northern Andes: a record of slab melting and intraplate magmatism in Colombia - Bustamante, Camilo; Cardona, Agustin; Archanjo, Carlos José; Lara, M.; Valencia, Victor A.; Bayona, Germán; Vervoort, V. (Hutton Symposium on Granites and Related Rocks, 2015)