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Mostrando ítems 1-10 de 21
A clinopyroxene-orthopyroxene-plagioclase symplectite formed by garnet breakdown in granulite facies, Guaxupe, Minas Gerais, Brazil
(Int Assoc Gondwana ResearchOsakaJapão, 2000)
Geodynamic evolution of the Southern Brasília orogen (SE Brazil): new petrochronological insights from UHT and HP metamorphic rocks
(Universidade Federal de Minas GeraisUFMG, 2018-01-12)
The Southern Brasília orogen is one of the orogens formed around the São Francisco paleocontinent during the West Gondwana amalgamation. Its formation is interpreted to have been the result of the subduction of the passive ...
Petrological evolution of silica-undersaturated sapphirine-bearing granulite in the Paleoproterozoic Salvador–Curaçá Belt, Bahia, Brazil
(2009)
The Salvador–Curaçá Belt, located in São Francisco Craton, Brazil, was subjected to granulite facies metamorphism during the Paleoproterozoic orogeny (c. 2.0 Ga). Well preserved in enclaves of silicaundersaturated
sapphi ...
Metamorphism of retroeclogites from the Passos Nappe, Southern Brasília Orogen
(2021-12-01)
High-pressure metamafic rocks from the Passos Nappe, Southern Brasília Orogen, have been traditionally interpreted as highly retrogressed eclogites, even though no reliable P-T conditions were available thus far. In this ...
Metamorphic P-T evolution of granulites in the central Ribeira Fold Belt, SE Brazil
(SPRINGER HEIDELBERG, 2011)
Pseudosections, geothermobarometric estimates and careful petrographic observations of gneissic migmatites and granulites from Neoproterozoic central Ribeira Fold Belt (SE Brazil) were performed in order to quantify the ...
Ultrahigh-temperature metamorphism of 2.0 Ga-Old sapphirine‑bearing granulite from the Itabuna-Salvador-Curaçá Block, Bahia, BrazilMetamorfismo de temperatura ultra-alta de granulitos com safirina de 2,0 Ga do Bloco Itabuna-Salvador-Curaçá, Bahia, Brasil
(Universidade de São Paulo, Instituto de Geociências, 2017)