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.
8-494: The San Rafael Block crops out 200 km to the south of the other exposures of Cuyania and is the southern extension of the terrane. The Precordillera has been hypothesised to have been derived from Laurentia , the core of North America, which was attached to the western margin of South America during the Precambrian when virtually all continents formed a "proto- Gondwana " supercontinent known as Pannotia . The Precordillera
16-503: A large rodent, the plains viscacha Lagostomus maximus , and the largest native animal on the reserve, the guanaco Lama guanicoe . A cooperative of around 20 families, Cooperativa Payun Matru, live on the reserve. They round up the wild guanaco every year and shear the animals for their fur. The annual round up is monitored by the Wildlife Conservation Society , and wool and yarn are exported abroad. The area
24-936: A regional geological feature is a stub . You can help Misplaced Pages by expanding it . This Chile location article is a stub . You can help Misplaced Pages by expanding it . This palaeogeography article is a stub . You can help Misplaced Pages by expanding it . San Rafael Block Argentina's 200 kilometers geographic and tectonic unit [REDACTED] This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed. Find sources: "San Rafael Block" – news · newspapers · books · scholar · JSTOR ( November 2022 ) ( Learn how and when to remove this message ) The San Rafael Block or San Rafael Massif ( Spanish : Bloque de San Rafael or Macizo de San Rafael )
32-949: Is a natural reserve located in the Malargüe Department in the southern part of Mendoza Province , Argentina , about 160 km away from Malargüe city . It was declared as nature preserve in 1988 and has an area of 4,500 km . La Payunia is home to the many volcanic cones , being noteworthy the Payún Matrú volcano. The flora is represented by matorrales , prairies , native mountain species and other typical patagonian plants such as Adesmia pinifolia , Festuca pallescens , Grindelia chiloensis , Ephedra ochreata miers , Neosparton ephedroides grisebach , Psila spartioides , Prosopis denudans (between 500 and 1,300 m AMSL ) and Schinus poligamun and Larrea nítida cavanilles (between 1,800 and 2,850 m AMSL). Over 70 animal species have been documented on
40-466: Is an uplifted area in central Mendoza Province , Argentina. The San Rafael Block is both a geographic and a tectonic unit. From a tectonostratigraphic view, some geologists consider it an exposure of the Cuyania ( Precordillera ) terrane being its southern extension. The San Rafael Block crops out 200 kilometres (120 mi) to the south of the other exposures of Cuyania. The San Rafael Block forms
48-1166: The northeastern boundary of the Neuquén Basin . See also [ edit ] [REDACTED] Geology portal North Patagonian Massif Reserva Provincial La Payunia San Rafael orogeny References [ edit ] ^ Field guideon the Ordovician of the Sierra Pintada, San Rafael Block, Mendoza ^ CARACTERIZACION GENERAL Y ESTUDIOS TEMATICOS POR PROVINCIA Retrieved from " https://en.wikipedia.org/w/index.php?title=San_Rafael_Block&oldid=1210250407 " Categories : Geology of Mendoza Province Geography of Mendoza Province Hidden categories: Articles with short description Short description matches Wikidata Articles needing additional references from November 2022 All articles needing additional references Reserva Provincial La Payunia The Reserva Provincial La Payunia ( Spanish : La Payunia Provincial Reserve ) also known as Payún or Payén
56-572: The reserve. Common bird species include the Andean condor Vultur gryphus , Darwin's rhea Rhea pennata , and flamingo. Reptiles include venomous snakes such as the Patagonian pit viper Bothrops ammodytoides and crossed pit viper Bothrops alternatus . Predators include the mountain lion Puma concolor , South American gray fox Pseudalopex griseus , culpeo fox Lycalopex culpaeus and pampas cat Leopardus pajeros . Other mammals include
64-778: Was then part of a proposed "Texas Plateau", a promontory attached to Laurentia similar to the way the Falkland Plateau is attached to South America today. The Texas Plateau was detached from the Gondwana in a rift around 455 Ma after which it collided with the proto-Andean margin of South America, an event known as the Taconic - Famatinian orogeny, and the Precordillera got left behind at its present location within South America. This article about
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