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Tectonic analysis of key areas in the Southern Espinhaço thrust front

Grant number: 19/25599-9
Support type:Regular Research Grants
Duration: August 01, 2020 - July 31, 2023
Field of knowledge:Physical Sciences and Mathematics - Geosciences - Geology
Principal researcher:Ginaldo Ademar da Cruz Campanha
Grantee:Ginaldo Ademar da Cruz Campanha
Home Institution: Instituto de Geociências (IGC). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Assoc. researchers:Dina Isabel Guerreiro Cabrita ; Frederico Meira Faleiros ; Oskar Vidal Royo ; Peter Cawood


The San Francisco Craton is delimited by marginal fold-and-thrust belts which affect its Paleo, Meso and Neoproterozoic covers, and in the neighboring orogens also involve its basement. In its southeastern portion is circumscribed by the Araçuaí Belt, whose most adopted craton boundary corresponds to the thrust front that pulls the Espinhaço Supergroup over the Neoproterozoic cover of the São Francisco Supergroup (Macaubas and Bambui groups). In this context the present project proposes the study of key areas for the understanding of tectonic deformation patterns and the relationship between sedimentation and the late Brasiliano tectonics, using classical structural analysis methods complemented by quantitative or semi-quantitative methods as strain analysis, microstructures studies, preferred crystallographic orientation patterns, vorticity analysis, fluid inclusion analysis and section restoration, as well as Ar-Ar and U-Pb radiometric dating of selected targets. Preliminarily the key areas chosen for study are 1) Serra do Cipó, 2) Itapanhoacanga - Santo Antônio do Norte, 3) Conselheiro Mata - Monjolos and 4) Serra Azul de Minas. (AU)

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