TY - GEN AU - Vergara,Mario AU - Morata,Diego AU - Villarroel,Renato AU - Nyström,Jan AU - Aguirre,Luis ED - International symposium on andean geodynamics, 4 TI - 40Ar/39Ar ages, very low-grade metamorphism and geochemistry of the volcanic rocks from "Cerro El Abanico", Santiago Andean cordillera (33°30'S-70°30'-70°25'W) N1 - bibliogr. p. 788 ER -