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20 p, 5.5 MB Petrogenesis of Miocene volcanic arc rocks over the Chilean-Pampean flat-slab segment of the Central Andes constrained by mineral chemistry / Litvak, V. D. (Instituto de Estudios Andinos Don Pablo Groeber (Buenos Aires, Argentina)) ; Poma, S. (Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires (Argentina))
Miocene arc volcanism is manifested widely in the Valle del Cura-El Indio belt region (29°30'-30° South latitude), in the southern Central Andes of Argentina and Chile. The magmas that fed this volcanism are well represented by the Cerro de las Tórtolas Formation, which is divided into two volcanic episodes based on petrographic, chemical and age differences: an older basaltic-andesitic event (16-14Ma) and a younger andesitic to dacitic (13-10Ma) one. [...]
2014 - 10.1344/105.000002081
Geologica acta, Vol. 12, Núm. 2 (June 2014) , p. 151-170  

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