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Geology of the Andes
The Andes
Pampean orogeny
Famatinian orogeny
Gondwanide orogeny
Andean orogeny
Fold-thrust belts

Central Andean | Patagonian

Peruvian Coastal | North Patagonian | South Patagonian
Subducted structures

Antarctic Plate | Carnegie Ridge | Chile Rise | Farallon Plate (formerly) | Juan Fernández Ridge | Nazca Plate | Nazca Ridge


Gastre | Liquiñe-Ofqui | Magallanes-Fagnano

Andean Volcanic Belt

Northern Zone| Peruvian flat-slab | Central Zone | Pampean flat-slab | Southern Zone | Patagonian Gap | Austral Zone

Paleogeographic terminology

Arequipa-Antofalla | Chilenia | Chiloé Block | Cuyania | Iapetus Ocean | Madre de Dios Terrane | Mejillonia | Pampia

Chilenia was an ancient microcontinent or terrane whose history affected many of the older rocks of central Chile and western Argentina. It was once separated by oceanic crust from the Cuyania terrane to which it accreted at ~420-390 Ma when Cuyania was already amalgamated with Gondwana.[1]

See also[edit]



  1. ^ [1] Rapalini, A.E. 2005. The accretionary history of southern South America from the latest Proterozoic to the Late Palaeozoic: some palaeomagnetic constraints. From: Vaughan, A. R M., Leat, P. T. & Pankhurst, R. J, (eds). Terrane Processes at the Margins of Gondwana. Geological Society, London, Special Publications, 246, 305-328.