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dc.contributor.authorDel Lama, E. A.
dc.contributor.authorZanardo, A.
dc.contributor.authorOliveira, MAF
dc.contributor.authorMorales, N.
dc.date.accessioned2014-05-20T15:23:06Z
dc.date.available2014-05-20T15:23:06Z
dc.date.issued2000-07-01
dc.identifierhttp://dx.doi.org/10.1002/gj.859
dc.identifier.citationGeological Journal. W Sussex: John Wiley & Sons Ltd, v. 35, n. 3-4, p. 231-249, 2000.
dc.identifier.issn0072-1050
dc.identifier.urihttp://hdl.handle.net/11449/33947
dc.description.abstractThis paper describes tectonic and metamorphic features of Precambrian rocks from the Guaxupe Complex and Varginha Shear Zone (VSZ) near the city of Guaxupe in the southern part of the Sao Francisco Craton, southeastern Brazil. The VSZ separates the metasediments of Araxa Group to the north from the granulites of Guaxupe Complex to the south. The sinistral transcurrent VSZ crosses the entire area striking approximately E-W, bending towards SE in the eastern part. Because of this bend, transpressional movement occurred, facilitating the exhumation of the garnet-rich rocks of the deepest exposed part of the granulite-facies terrane.In the garnet granulites the highest pressure-temperature conditions recorded are approximately 1040 degreesC and 14.4 kbar. The rocks underwent decompression from 14.0 kbar to 8.0 kbar, cooling from 980 degreesC to 710 degreesC, the retrograde path following the boundary between the kyanite and sillimanite stability fields. This interval is interpreted to record the uplift of the lower crustal granulite-facies terrane and re-equilibration during magmatic intrusions. For the felsic granulites an interval of 700-810 degreesC and 8.0-11.5 kbar was attained, also pointing to regional decompression.The granulites of the Guaxupe Complex comprise a medium- to high-pressure lower-crustal terrane, with local occurrences of higher-pressure garnet-rich gneisses, which were uplifted along a transpressional segment of the VSZ. Copyright (C) 2000 John Wiley & Sons, Ltd.en
dc.format.extent231-249
dc.language.isoeng
dc.publisherWiley-Blackwell
dc.relation.ispartofGeological Journal
dc.sourceWeb of Science
dc.subjectthermobarometrypt
dc.subjectgarnet granulitept
dc.subjecttranspressionpt
dc.subjectGuaxupe Complexpt
dc.subjectprecambrianpt
dc.subjectVarginha Shear Zonept
dc.subjectBrazilpt
dc.titleExhumation of high-pressure granulites of the Guaxupe Complex, southeastern Brazilen
dc.typeArtigo
dcterms.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dcterms.rightsHolderWiley-Blackwell
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.description.affiliationUniv São Paulo, GMG IG, BR-05508900 São Paulo, SP, Brazil
dc.description.affiliationUNESP, IGCE, DPM, Rio Claro, Brazil
dc.description.affiliationUnespUNESP, IGCE, DPM, Rio Claro, Brazil
dc.identifier.doi10.1002/gj.859
dc.identifier.wosWOS:000168055100006
dc.rights.accessRightsAcesso restrito
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Geociências e Ciências Exatas, Rio Claropt
dc.identifier.lattes6893272900174059
dc.identifier.lattes5136594572347865
dc.identifier.orcid0000-0003-2781-586X
unesp.author.lattes6893272900174059
unesp.author.lattes5136594572347865
unesp.author.orcid0000-0003-2781-586X[4]
dc.relation.ispartofjcr1.654
dc.relation.ispartofsjr0,846
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