Villagómez, Diego Geochemical, geochronological and isotopic characterisation of the mafic basement and cover sequences within the Interandean depression, Ecuador - Paris IRD Éditions 2005 - pp. 787-790 ilus. Subjects--Topical Terms: BASAMENTODATACION AR-ARDATACION SM-NDEDADES RADIOMETRICASGEOCRONOLOGIAGEOQUÍMICAISOTOPOSROCAS VOLCANICASROCAS VOLCANOCLASTICASTRAZAS DE FISION Subjects--Geographic Terms: ECUADOR Subjects--Index Terms: DEPRESION INTERANDINA Universal Decimal Class. No.: 551.2(1-928.2)/I61/6|29