Chilenia

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]

Geology of the Andes
Orogenies
Pampean • Famatinian • Gondwanide • Andean
Fold-thrust belts

Marañón • Central Andean • Patagonian

Batholiths
Antioquia • Cordillera Blanca • Peruvian Coastal • Vicuña Mackenna • Elqui-Limarí • Colangüil • Chilean Coastal • North Patagonian • South Patagonian
Subducted structures

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

Faults

Dolores-Guayaquil • Cordillera Blanca • Cochabamba • Domeyko • El Tigre • San Ramón • Liquiñe-Ofqui • Magallanes-Fagnano

Andean Volcanic Belt

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

Terranes

Arequipa-Antofalla • Mejillonia • Chilenia • Chaitenia • Chiloé Block • Cuyania • Pampia • Patagonia • Fitz Roy • Madre de Dios

See also
  • Andes – Mountain range in South America

References
  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.

Sources

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