New evidence for superposition of two major Precambrian orogens in southeast Brazil

•The Socorro lobe is confirmed by U-Pb data as part of the Socorro-Guaxupé Nappe.•L2 stretching lineations in this lobe plunge towards SW, consistent with NE vergence.•High grade S2 mylonites (∼615 Ma) were generated during nappe extrusion.•Lower grade S3 mylonites (595-560 Ma) show Ribeira Orogen o...

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Bibliographic Details
Published in:	Journal of South American earth sciences Vol. 149; p. 105149
Main Authors:	Furtado, Pedro Costa, Trouw, Rudolph Allard Johannes, Nunes, Rodrigo Peternel Machado, Fontainha, Marcos Vinícius, Geraldes, Mauro Cesar, da Costa, Rodrigo Vinagre Cintra, Telles, Rafael Cardoso De Moraes
Format:	Journal Article
Language:	English
Published:	Elsevier Ltd 01-12-2024
Subjects:	Continental collision Neoproterozoic Brasiliano-Pan-African orogeny Orogenic superposition Structural evolution West Gondwana Neoproterozoic Brasiliano-Pan-African orogeny Structural evolution Orogenic superposition Continental collision West Gondwana
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Summary:	•The Socorro lobe is confirmed by U-Pb data as part of the Socorro-Guaxupé Nappe.•L2 stretching lineations in this lobe plunge towards SW, consistent with NE vergence.•High grade S2 mylonites (∼615 Ma) were generated during nappe extrusion.•Lower grade S3 mylonites (595-560 Ma) show Ribeira Orogen overprinting.
ISSN:	0895-9811
DOI:	10.1016/j.jsames.2024.105149