Neoproterozoic tectonic and magmatic episodes in the NW sector of Borborema Province, NE Brazil, during assembly of Western Gondwana

dc.creatordos Santos, TJS
dc.creatorFetter, AH
dc.creatorHackspacher, PC
dc.creatorVan Schmus, WR
dc.creatorNeto, JAN
dc.date2008
dc.dateMAY
dc.date2014-11-17T22:39:39Z
dc.date2015-11-26T16:47:20Z
dc.date2014-11-17T22:39:39Z
dc.date2015-11-26T16:47:20Z
dc.date.accessioned2018-03-28T23:33:27Z
dc.date.available2018-03-28T23:33:27Z
dc.identifierJournal Of South American Earth Sciences. Pergamon-elsevier Science Ltd, v. 25, n. 3, n. 271, n. 284, 2008.
dc.identifier0895-9811
dc.identifierWOS:000255921500001
dc.identifier10.1016/j.jsames.2007.05.006
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/64217
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/64217
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/64217
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1274825
dc.descriptionThe Medio Coreau domain of NE Brazil is located along the northwest margin of Borborema Province, the western branch of a Brasiliano/Pan-African collisional belt that formed during the assembly of Western Gondwana. The early Paleoproterozoic basement of the Medio Coreau domain is composed of migmatitic gneisses and juvenile granulites, overlain by late Paleoproterozoic and Neoproterozoic rocks intruded by syn- to post-tectonic Brasiliano granitoids. According to integrated structural and geochronological data (U-Pb zircon and monazite ages), the Neoproterozoic tectonic evolution of the Medio Coreau is characterized by low-angle thrusting and transcurrent deformation. U-Pb geochronological data from plutons intruded during this compressional regime indicate the collisional evolution began at approximately 622 Ma and continued until about 591 Ma. The continuation of convergence until approximately 560 Ma resulted in the formation of NE-SW and E-W shear zones within the Borborema Province and adjoining West African provinces. The final stage of the ductile tectonism was characterized by uplift and high-angle fault generation between approximately 560 and 545 Ma. The last tectonic event was an extensional phase, resulting in the formation of the Jaibaras graben and intrusion of post-orogenic granites at around 532 Ma. (c) 2007 Elsevier Ltd. All rights reserved.
dc.description25
dc.description3
dc.description271
dc.description284
dc.languageen
dc.publisherPergamon-elsevier Science Ltd
dc.publisherOxford
dc.publisherInglaterra
dc.relationJournal Of South American Earth Sciences
dc.relationJ. South Am. Earth Sci.
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectBorborema Province
dc.subjectMedio Coreau domain
dc.subjecttectonic evolution
dc.subjectWestern Gondwana
dc.subjectNortheast Brazil
dc.subjectPan-african
dc.subjectZircon Ages
dc.subjectPb
dc.subjectEmplacement
dc.subjectPlutons
dc.subjectCeara
dc.subjectGranite
dc.subjectOrogen
dc.subjectEvolution
dc.titleNeoproterozoic tectonic and magmatic episodes in the NW sector of Borborema Province, NE Brazil, during assembly of Western Gondwana
dc.typeArtículos de revistas


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