"Brazilian shield" redirects here. For the highlands in eastern, central and southern Brazil, see Brazilian Highlands.
The Amazonian Craton is a geologic province located in South America. It occupies a large portion of the central, north and eastern part of the continent and represents one of Earth's largest cratonic regions.[1] The Guiana Shield and Central Brazil Shield (Guaporé Shield) constitute respectively the northern and southern exhumed parts of the craton. Between the two shields lies the Amazon Rift, a zone of weakness within the craton. Smaller cratons of Precambrian rocks south of the Amazonian Shield are the Río de la Plata Craton and the São Francisco Craton, which lies to the east.
Approximate location of Mesoproterozoic (older than 1.3 Ga) cratons in South America and Africa. The São Luís and Luis Alves cratonic fragments (Brazil) are shown, but the Arequipa–Antofalla Craton, the Sahara Craton, and some minor African cratons are not. Other versions describe the Guiana Shield separated from the Amazonian Shield by a depression.
The Río Apa Craton at the Paraguay-Brazil border is considered to be likely just the southern part of the Amazonian Craton.[2] The rocks of Río Apa were deformed during the Sunsás orogeny.[3]
South American Plate – Major tectonic plate which includes most of South America and a large part of the south Atlantic
Referencesedit
^Bonilla, Amed; Cramer, Thomas; De Grave, Johan; Alessio, Brandon; Glorie, Stijn; Kroonenberg, Salomon (15 July 2021). "The NW Amazonian Craton in Guainía and Vaupés departments, Colombia: Transition between orogenic to anorogenic environments during the Paleo-Mesoproterozoic". Precambrian Research. 360: 106223. doi:10.1016/j.precamres.2021.106223. S2CID 236266292. Retrieved 17 December 2022.
^Mantovani, Marta S.M.; de Brito Neves, Benjamin B. (2010). "The Paranapanema Lithospheric Block: Its Nature and Role in the Accretion of Gondwana". In Gaucher, Claudio; Sial, Alcides; Haverson, Galen (eds.). Neoproterozoic-Cambrian tectonics, global change and evolution: a focus on south western Gondwana. Elsevier. p. 258. doi:10.1016/S0166-2635(09)01619-3.
^Tohver, E.; Trindade, R.I.F.; Solum, G.F.; Hall, C.M.; Riccomini, C.; Nogueira, A.C. (2010). "Closing the Clymene ocean and bending a Brasiliano belt: Evidence for the Cambrian formation of Gondwana, southeast Amazon craton". Geology. 38 (3): 267–270. Bibcode:2010Geo....38..267T. doi:10.1130/G30510.1.
^Slagstad, Trond; Roberts, Nick M. W.; Markens, Rogens; Røhr, Torkil; Schiellerup, Henrik (2013). "A non-collisional, accretionary Sveconorwegian orogen". Terra Nova. 25 (1): 30–37. Bibcode:2013TeNov..25...30S. doi:10.1111/ter.12001. S2CID 129199992.
^Bingen, Bernard; Nordgulen, Øystein; Viola, Giulio (2008). "A four-phase model for the Sveconorwegian orogeny, SW Scandinavia". Norwegian Journal of Geology. 88: 43–72.
Further readingedit
Zandt, George (Spring 2002). . University of Arizona. Archived from the original on 2015-11-09.
This palaeogeography article is a stub. You can help Wikipedia by expanding it.
amazonian, craton, brazilian, shield, redirects, here, highlands, eastern, central, southern, brazil, brazilian, highlands, geologic, province, located, south, america, occupies, large, portion, central, north, eastern, part, continent, represents, earth, larg. Brazilian shield redirects here For the highlands in eastern central and southern Brazil see Brazilian Highlands The Amazonian Craton is a geologic province located in South America It occupies a large portion of the central north and eastern part of the continent and represents one of Earth s largest cratonic regions 1 The Guiana Shield and Central Brazil Shield Guapore Shield constitute respectively the northern and southern exhumed parts of the craton Between the two shields lies the Amazon Rift a zone of weakness within the craton Smaller cratons of Precambrian rocks south of the Amazonian Shield are the Rio de la Plata Craton and the Sao Francisco Craton which lies to the east Approximate location of Mesoproterozoic older than 1 3 Ga cratons in South America and Africa The Sao Luis and Luis Alves cratonic fragments Brazil are shown but the Arequipa Antofalla Craton the Sahara Craton and some minor African cratons are not Other versions describe the Guiana Shield separated from the Amazonian Shield by a depression The Rio Apa Craton at the Paraguay Brazil border is considered to be likely just the southern part of the Amazonian Craton 2 The rocks of Rio Apa were deformed during the Sunsas orogeny 3 It has been suggested that the Late Mesoproterozoic Early Neoproterozoic aged Sveconorwegian Orogen in Fennoscandia could have been caused by a continent continent collision between the Amazonia and Baltica 4 The question is open if Telemarkia terrane in Norway was derived from the Amazonian Craton but this possibility does not imply necessarily that there was a continental collision 5 See also editGeography of Brazil Overview of the geography of Brazil Geography of South America Overview of the geography of South America South American Plate Major tectonic plate which includes most of South America and a large part of the south AtlanticReferences edit Bonilla Amed Cramer Thomas De Grave Johan Alessio Brandon Glorie Stijn Kroonenberg Salomon 15 July 2021 The NW Amazonian Craton in Guainia and Vaupes departments Colombia Transition between orogenic to anorogenic environments during the Paleo Mesoproterozoic Precambrian Research 360 106223 doi 10 1016 j precamres 2021 106223 S2CID 236266292 Retrieved 17 December 2022 Mantovani Marta S M de Brito Neves Benjamin B 2010 The Paranapanema Lithospheric Block Its Nature and Role in the Accretion of Gondwana In Gaucher Claudio Sial Alcides Haverson Galen eds Neoproterozoic Cambrian tectonics global change and evolution a focus on south western Gondwana Elsevier p 258 doi 10 1016 S0166 2635 09 01619 3 Tohver E Trindade R I F Solum G F Hall C M Riccomini C Nogueira A C 2010 Closing the Clymene ocean and bending a Brasiliano belt Evidence for the Cambrian formation of Gondwana southeast Amazon craton Geology 38 3 267 270 Bibcode 2010Geo 38 267T doi 10 1130 G30510 1 Slagstad Trond Roberts Nick M W Markens Rogens Rohr Torkil Schiellerup Henrik 2013 A non collisional accretionary Sveconorwegian orogen Terra Nova 25 1 30 37 Bibcode 2013TeNov 25 30S doi 10 1111 ter 12001 S2CID 129199992 Bingen Bernard Nordgulen Oystein Viola Giulio 2008 A four phase model for the Sveconorwegian orogeny SW Scandinavia Norwegian Journal of Geology 88 43 72 Further reading editZandt George Spring 2002 Orogenic Systems The Andes University of Arizona Archived from the original on 2015 11 09 nbsp This palaeogeography article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Amazonian Craton amp oldid 1222923918, wikipedia, wiki, book, books, library,
