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Metamorphism and tectonic evolution of the southern Ribeira Belt: relationships between the Embu, Apiaí and Curitiba terranes

Grant number: 15/04487-7
Support type:Regular Research Grants
Duration: May 01, 2015 - October 31, 2017
Field of knowledge:Physical Sciences and Mathematics - Geosciences - Geology
Principal Investigator:Frederico Meira Faleiros
Grantee:Frederico Meira Faleiros
Home Institution: Instituto de Geociências (IGC). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Assoc. researchers:Ginaldo Ademar da Cruz Campanha ; Leonardo Fadel Cury ; Mauricio Pavan Silva ; Oswaldo Siga Junior ; Renato de Moraes

Abstract

This project aims to use quantitative study of metamorphic processes to unravel the tectonic evolution of the southern Ribeira Belt, its implications to the history of consolidation of the Western Gondwana supercontinent and to contribute to the scientific knowledge on the development of Precambrian orogens. We will study the relationships between the Embu, Apiaí and Curitiba terranes by quantifying pressure-temperature-time-deformation paths and metamorphic field gradients. These goals should be achieved using the integration of results from the application of several methods: regional and detailed field work, microscopic petrography, microtectonics, mineral chemistry using electron microprobe and scanning electron microscope, geothermobarometry (conventional, multiequilibrium, thermodynamic modeling), fluid inclusion study, geochronology by isotopic (U-Pb in zircon and monazite, Ar-Ar in micas and amphibole) and chemical (U-Th-PbT in monazite and xenotime) methods and major and trace element geochemistry. The integration of petrological and geochronological data of each study unit should enable quantification of thermal regimes, depth of burial, exhumation and cooling rates, as well as time spam of collision, which are essential for the development of geodynamic models of orogenic zones. U-Pb (LA-ICP-MS) analyzes in detrital zircon grains from metasedimentary rocks of the Embu Terrane will be conducted to determine their source areas and maximum depositional ages, and to evaluate possible relationships with the evolutionary histories of the Apiaí and Curitiba terranes, which have available detrital zircon age data. (AU)

Scientific publications (7)
(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)
RICARDO, BRUNA S.; FALEIROS, FREDERICO M.; DE MORAES, RENATO; SIGA JUNIOR, JR., OSWALDO; CAMPANHA, GINALDO A. C. Tectonic implications of juxtaposed high- and low-pressure metamorphic field gradient rocks in the Turvo-Cajati Formation, Curitiba Terrane, Ribeira Belt, Brazil. Precambrian Research, v. 345, AUG 2020. Web of Science Citations: 0.
FORERO-ORTEGA, A. J.; CAMPANHA, G. A. C.; FALEIROS, F. M.; YOGI, M. T. A. G. Pure shear-dominated transpression and vertical extrusion in a strike-slip fault splay from the Itapirapua Shear Zone, Ribeira Belt, Brazil. TECTONOPHYSICS, v. 786, JUL 5 2020. Web of Science Citations: 0.
MALTA, ISAAC S.; FALEIROS, FREDERICO M.; MONTEIRO, LENA V. S.; ANDRADE, MARCELO B.; COLDEBELLA, BRUNA; ESTEVES, MELINA C. B. P-T-fluid-deformation regime of the Ediacaran Serra do Cavalo Magro orogenic gold deposit, Ribeira Belt, Brazil. ORE GEOLOGY REVIEWS, v. 120, MAY 2020. Web of Science Citations: 0.
RIBEIRO, B. V.; FALEIROS, F. M.; CAMPANHA, G. A. C.; LAGOEIRO, L.; WEINBERG, R. F.; HUNTER, N. J. R. Kinematics, nature of deformation and tectonic setting of the Taxaquara Shear Zone, a major transpressional zone of the Ribeira Belt (SE Brazil). TECTONOPHYSICS, v. 751, p. 83-108, JAN 20 2019. Web of Science Citations: 1.
CAMPANHA, G. A. C.; FALEIROS, F. M.; CAWOOD, P. A.; CABRITA, D. I. G.; RIBEIRO, V, B.; BASEI, M. A. S. The Tonian Embu Complex in the Ribeira Belt (Brazil): revision, depositional age and setting in Rodinia and West Gondwana. Precambrian Research, v. 320, p. 31-45, JAN 2019. Web of Science Citations: 5.
FALEIROS, F. M.; CAMPANHA, G. A. C.; PAVAN, M.; ALMEIDA, V. V.; RODRIGUES, S. W. O.; ARAUJO, B. P. Short-lived polyphase deformation during crustal thickening and exhumation of a collisional orogen (Ribeira Belt, Brazil). JOURNAL OF STRUCTURAL GEOLOGY, v. 93, p. 106-130, DEC 2016. Web of Science Citations: 7.
FALEIROS, F. M.; MORAES, R.; PAVAN, M.; CAMPANHA, G. A. C. A new empirical calibration of the quartz c-axis fabric opening-angle deformation thermometer. TECTONOPHYSICS, v. 671, p. 173-182, MAR 7 2016. Web of Science Citations: 16.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.