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

• Grant number: 15/04487-7
• Support Opportunities: Regular Research Grants
• Start date: May 01, 2015
• End date: October 31, 2017
• Field of knowledge: Physical Sciences and Mathematics - Geosciences - Geology
• Principal Investigator: Frederico Meira Faleiros
• Grantee: Frederico Meira Faleiros
• Host Institution: Instituto de Geociências (IGC). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• City of the host institution: São Paulo
• Associated 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

(9)

(The scientific publications listed on this page originate from the Web of Science or SciELO databases. Their authors have cited FAPESP grant or fellowship project numbers awarded to Principal Investigators or Fellowship Recipients, whether or not they are among the authors. This information is collected automatically and retrieved directly from those bibliometric databases.)

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. (18/01572-1, 15/04487-7, 18/10012-0, 16/12986-6)

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. (15/04487-7)

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. (18/10012-0, 15/04487-7, 18/00320-9, 16/22051-4, 17/08919-4)

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. (15/04487-7, 16/11584-1, 18/10012-0)

CABRITA, DINA I. G.; FALEIROS, FREDERICO M.; RIBEIRO, BRUNO, V; MENEGON, LUCA; CAWOOD, PETER A.; CAMPANHA, GINALDO A. C.. Deformation, thermochronology and tectonic significance of the crustal-scale Cubatao Shear Zone, Ribeira Belt, Brazil. TECTONOPHYSICS, v. 828, p. 16-pg., 2022-03-09. (19/10457-4, 15/04487-7, 15/26645-3, 18/10012-0, 18/21824-5)

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. (13/04007-0, 15/04487-7)

CABRITA, DINA I. G.; FALEIROS, FREDERICO M.; CAMPANHA, GINALDO A. C.; RIBEIRO, BRUNO, V; CAWOOD, PETER A.. Meso- to Neoproterozoic terrane accretion: Insights from juvenile mafic magmatism from the Votuverava Group and Embu Complex, southern Ribeira Belt, Brazil. Precambrian Research, v. 386, p. 17-pg., 2023-01-19. (15/26645-3, 15/04487-7, 19/10457-4)

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. (15/04487-7, 18/10012-0)

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. (15/04487-7)