Soler, Pierre A comment on the time-dependant evolution of initial strontium isotopic ratio of upper Cretaceous and Cenozoic granitoids from central Peru - Buenos Aires s.e. 1987 - pp. 51-53 Subjects--Topical Terms: ISOTOPOS DE ESTRONCIOOROGENIA ANDINAROCAS GRANITOIDES Subjects--Geographic Terms: ANDESPERUREGION CENTRAL