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

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.