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

References

  1. 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.
  2. 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.

Sources

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