Cuyania
Antarctic Plate | Carnegie Ridge | Chile Rise | Farallon Plate (formerly) | Juan Fernández Ridge | Nazca Plate | Nazca Ridge
Gastre | Liquiñe-Ofqui | Magallanes-Fagnano
Northern Zone| Peruvian flat-slab | Central Zone | Pampean flat-slab | Southern Zone | Patagonian Gap | Austral Zone
Arequipa-Antofalla | Chilenia | Chiloé Block | Cuyania | Iapetus Ocean | Madre de Dios Terrane | Mejillonia | Pampia
The Precordillera Terrane or Cuyania was an ancient microcontinent or terrane whose history affected many of the older rocks of Cuyo in Argentina. It was separated by oceanic crust from the Chilenia terrane which accreted into it at ~420-390 Ma when Cuyania was already amalgamated with Gondwana. The hypothesized Mejillonia Terrane in the coast of northern Chile is considered by some geologists to be a single block with Cuyania.
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Wikipedia