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Metamorphic modelling of high aluminum pelites with mineral chemistry and pseudo-sections: example of Luminárias Nappe - MG

Grant number: 15/07750-0
Support Opportunities:Scholarships in Brazil - Master
Effective date (Start): December 01, 2015
Effective date (End): January 31, 2017
Field of knowledge:Physical Sciences and Mathematics - Geosciences - Geology
Principal Investigator:George Luiz Luvizotto
Grantee:Regiane Andrade Fumes
Host Institution: Instituto de Geociências e Ciências Exatas (IGCE). Universidade Estadual Paulista (UNESP). Campus de Rio Claro. Rio Claro , SP, Brazil


The Luminárias Nappe is located in the southern portion of the Brasília Orogen or in the interference zone between Ribeira and Brasilia belts. The present work focuses on the metamorphic characterization of the rocks of the Luminárias region that is composed by high aluminum pelites and quartzites. And this work aims to carry out a metamorphic characterization on both of these rocks. The metapelites of Luminárias Nappe fall in the field of high Al pelites. These rocks show mineral assemblages that differ from those of pelites from the classic barrovian series, since biotite is not crystalized under greenschist and amphibilite facies. The metamorphism of the Luminárias Nappe increases from north (greenschist facies) to South (amphibolite facies) Metamorphic studies have previously been carried out in this area. However, they did not include modern techniques like, pseudosections, and trace-element geothermobarometers, such as Zr-in-Rutile and Ti-in-Quartz. The new data will favor discussion about the interference zone between Brasilia and Ribeira belts, shedding light into the formation of southern São Francisco Craton Region.

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
REGIANE ANDRADE FUMES; GEORGE LUIZ LUVIZOTTO; RENATO MORAES; MONICA HEILBRON; SILVIO ROBERTO FARIAS VLACH. Metamorphic modeling and petrochronology of metapelitic rocks from the Luminárias Nappe, southern Brasília belt (SE Brazil). BRAZILIAN JOURNAL OF GEOLOGY, v. 49, n. 2, . (15/05230-0, 15/07750-0, 16/22627-3)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
FUMES, Regiane Andrade. Metamorphic modeling and geothermobarometry of trace elements in metapelites and quartzites: example of Luminárias Nappe-MG. 2017. Master's Dissertation - Universidade Estadual Paulista (Unesp). Instituto de Geociências e Ciências Exatas. Rio Claro Rio Claro.

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