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Tectonometamorphic evolution of the Embu Terrane and relationships with adjacent terranes in the Southern Ribeira Belt (São Paulo, Brazil)

Grant number: 15/26645-3
Support Opportunities:Scholarships in Brazil - Doctorate
Effective date (Start): December 01, 2016
Effective date (End): February 28, 2022
Field of knowledge:Physical Sciences and Mathematics - Geosciences - Geology
Principal Investigator:Frederico Meira Faleiros
Grantee:Dina Isabel Guerreiro Cabrita
Host Institution: Instituto de Geociências (IGC). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Associated scholarship(s):19/10457-4 - Isotope dating coupled to trace element characteristics in igneous and metamorphic minerals from the Embu Terrane, and their implications for the reconstruction of the Ribeira Belt tectonic evolution, BE.EP.DR   18/21824-5 - Deformation regimes and fabrics in lower to mid-crustal large-scale transcurrent shear zones: the Lancinha-Cubatão shear system, Ribeira belt, Brazil, BE.EP.DR


The Embu Terrane is inserted in the central and southern portions of the Ribeira Belt, in the latter case together with the Apiaí, Curitiba and Paranaguá Terranes. It is composed of a lower to upper amphibolite facies metasedimentary rock assemblage with concordant intercalations of calc-silicate, metaultramafic and metamafic rocks and quartzite. This terrane is one of the key elements in understanding the geotectonic evolution of the Ribeira Belt, about which there are currently two opposing geotectonic models. One of the models considers the Ribeira Belt as a collisional orogen, while the another interprets it as an intracontinental orogen. This project aims to quantify the metamorphic process recorded in the Embu Terrane, especially in its western portion, to complement existing data and to compare these two models of tectonic evolution. In addition the project proposes to study the southeastern boundary between the Embu Terrane and adjacent terranes (Apiaí, Costeiro and Curitiba Terranes), along the Cubatão Megafault, which represents the largest structure of the Ribeira Belt. The tectonic role of the Cubatão Fault is also contentious, being interpreted as a suture zone or a late lateral scape zone. The aims of the project are to be achieved using the following methods: regional and detailed field work, petrography, geothermobarometry, microstructural analysis, crystallographic fabrics and isotopic geochronology.

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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)
CABRITA, DINA I. G.; FALEIROS, FREDERICO M.; CAWOOD, PETER A.; CAMPANHA, GINALDO A. C.; YOGI, MARIA T. A. G.; WAINWRIGHT, ASHLEA N.; RAVEGGI, MASSIMO; ALMEIDA, VIDYA V.. Petrochronological constraints and tectonic implications of Tonian metamorphism in the Embu Complex, Ribeira Belt, Brazil. Precambrian Research, v. 363, . (15/26645-3, 19/10457-4, 18/10012-0)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
CABRITA, Dina Isabel Guerreiro. Tectono-metamorphic evolution of the Embu Terrane and the adjacent terranes at the Southern Ribeira Belt. 2022. Doctoral Thesis - Universidade de São Paulo (USP). Instituto de Geociências (IG/BT) São Paulo.

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