Connecting the Aracuai and Ribeira belts (SE - Brazil): Progressive transition from contractional to transpressive strain regime during the Brasiliano orogeny

• Published in: Journal of South American Earth Sciences
• Main Authors: Egydio-Silva, Marcos, Vauchez, Alain, Fossen, Haakon, Goncalves Cavalcante, Geane Carolina, Xavier, Bruna Catarino
• Other Authors: Universidade de São Paulo, Géosciences Montpellier, Institut national des sciences de l'Univers (INSU - CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA), University of Bergen (UiB), Universidade Federal do Paraná, Curitiba
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2018
• Subjects: Ribeira belt; Aracuai orogen; Transcurrent shear zone; Transpression; Collisional tectonics; West gondwana; [SDU.STU.TE]Sciences of the Universe [physics]/Earth Sciences/Tectonics; Canada; Great Slave Lake
• Online Access: https://hal.science/hal-01934487; https://doi.org/10.1016/j.jsames.2018.06.005

International audience Whether the Araçuaí and the Ribeira Neoproterozoic belts in southeast Brazil represent a continuous or two distinct orogenic belts is still a debated question. We compile existing geologic and geophysical data and argue that the two belts, in spite of differences in tectonic s...