Vinasco, C.J. Geochronological, isotopic, and geochemical data from Permo-Triassic granitic gneisses and granitoids of the Colombian Central Andes - Oxford Elsevier Science September 2006 - pp. 355-371 ilus. ISSN: 0895-9811 Subjects--Topical Terms: CORTEZAGEOCRONOLOGIAGEOQUÍMICAISOTOPOSMAGMATISMOPERMICOTRIASICO Subjects--Geographic Terms: ANDESCOLOMBIA