Chilenia
| Geology of the Andes |
|---|
 |
| Orogenies |
| Pampean orogeny |
| Famatinian orogeny |
| Gondwanide orogeny |
| Andean orogeny |
| Fold-thrust belts |
|
Central Andean | Patagonian |
| Batholiths |
| Peruvian Coastal | North Patagonian | South Patagonian |
| Subducted structures |
|
Antarctic Plate | Carnegie Ridge | Chile Rise | Farallon Plate (formerly) | Juan Fernández Ridge | Nazca Plate | Nazca Ridge |
| Faults |
| 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
Sources
References
- ↑ 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.
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