Tectonic evolution of the late Paleozoic basement in western Patagonia region (Argentina-Chile)

RENDA, EMILIANO M.; VARELA, MARIA E.; GONZÁLEZ, PABLO D.; SUÁREZ, RODRIGO; MARCOS, PAULO; ORIOLO, SEBASTIÁN; GREGORI, DANIEL A.

Londres

Congreso; The annual Metamorphic Studies Group (MSG) Research; 2021

The Mineralogical Society

Patagonia constitutes a vast area located in the southern extreme of the South American Continent, where theigneous-metamorphic basement presents a complex evolution during the Paleozoic. The oldest outcrops are in thenortheastern region near the Atlantic Ocean and correspond to the Cambrian - Ordovician Orogens [1,2]. In contrast,its western region comprises basement units of Silurian ? Devonian ages, showing that orogen-development processesmigrated towards the southwest of Patagonia [3,4,5]. The last widespread igneous-metamorphic events record theLate Paleozoic Gondwanide Orogeny and are extensively distributed along the Patagonia´s boundaries [2,6,7,8].