The Pre-Andean Phases of Construction of the Southern Andes Basement in Neoproterozoic?Paleozoic Times

HEREDIA, N.; GARCÍA SANSEGUNDO, J.; GALLASTEGUI, G.; FARÍAS, P.; GIACOSA, R.; HONGN, F.; TUBÍA, J.; Y 20 COAUTORES MAS

The Evolution of the Chilean-Argentinean Andes

Springer Nature

Lugar: Heidelberg; Año: 2018; p. 111 - 133

During the late Neoproterozoic and Paleozoic times, the southern Andesof Argentina and Chile (21º?55º S) formed part of the southwestern margin ofGondwana. During this period of time, a set of continental fragments of variable extent and allochtony was successively accreted to that margin, resulting in sixPaleozoic orogenies of different temporal and spatial extension: Pampean(Ediacaran?early Cambrian), Famatinian (Middle Ordovician?Silurian), Ocloyic(Middle Ordovician?Devonian), Chanic (Middle Devonian?early Carboniferous),Gondwanan (Middle Devonian?middle Permian), and Tabarin (late Permian?Triassic). All these orogenies culminate with collisional events, with the exception of the Tabarin and a part of the Gondwanan orogenies that are subduction-related.