Pampia
Pampia[1] was an ancient microcontinent or terrane that collided with Río de la Plata Craton and Río Apas Craton during the Pampean orogeny of late Proterozoic and early Cambrian.[2] It was one of the first terranes to be amalgamated to the old cratons of the east, and was followed by the suturing of Cuyania and Chilenia terranes into the young South American Plate.
| 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 |
Sources
References
- Casquet, C; Rapela, C.W; Pankhurst, R.J; Baldo, E.G; Galindo, C; Fanning, C.M; Dahlquist, J.A; Saavedra, J (2012). "A history of Proterozoic terranes in southern South America: From Rodinia to Gondwana". Geoscience Frontiers. 3 (2): 137–45. doi:10.1016/j.gsf.2011.11.004.
- Gaucher, Claudio; Bossi, Jorge; Blanco, Gonzalo (2009). "Palaeogeography". Neoproterozoic-Cambrian Tectonics, Global Change and Evolution: A Focus on South Western Gondwana. Developments in Precambrian Geology. 16. pp. 131–41. doi:10.1016/S0166-2635(09)01609-0. ISBN 978-0-444-53249-7.