Review of the geodynamic evolution of the SW margin of Gondwana preserved in the Central Andes of Argentina and Chile (28°-38° S latitude)

In the southwestern margin of Gondwana, preserved in the Argentinean-Chilean Andes (28-38° S latitude), three subduction events, Famatinian, Chanic and Gondwanan, took place from the Ordovician to the middle Permian. The first two culminate in collisional orogens in Middle Ordovician and Late Devoni...

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Detalles Bibliográficos
Autores principales: Heredia, N., García-Sansegundo, J., Gallastegui, G., Farias, P., Giacosa, R.E., Giambiagi, L.B., Busquets, P., Colombo, F., Charrier, R., Cuesta, A., Rubio-Ordóñez, Á., Ramos, V.A.
Formato: JOUR
Materias:
Central Andes
Chanic orogen
Famatinian orogen
Gondwanan orogen
Paleozoic geodynamics
collision zone
geodynamics
Gondwana
lineament
orogeny
Paleozoic
subduction zone
Andes
Argentina
Chile
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_08959811_v87_n_p87_Heredia
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
Descripción
Sumario:In the southwestern margin of Gondwana, preserved in the Argentinean-Chilean Andes (28-38° S latitude), three subduction events, Famatinian, Chanic and Gondwanan, took place from the Ordovician to the middle Permian. The first two culminate in collisional orogens in Middle Ordovician and Late Devonian times respectively, while the Gondwanan is a subduction-related orogen, developed in late Carboniferous-middle Permian times. This model is only valid for these latitudes, which coincide with the N and S limits of the Chi-Cu continental fragment (Chilenia + Cuyania subplates). Northern and southern limits of this continental fragment coincide with two major Andean lineaments, Valle Ancho and Huincul respectively. © 2017 Elsevier Ltd

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