Metamorphism and partial melting in ancient orogens III

• Grant number: 23/07347-8
• Support Opportunities: Regular Research Grants
• Start date: September 01, 2023
• End date: November 30, 2025
• Field of knowledge: Physical Sciences and Mathematics - Geosciences - Geology
• Principal Investigator: Renato de Moraes
• Grantee: Renato de Moraes
• Host Institution: Instituto de Geociências (IGC). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Associated researchers: Bruna Borges Carvalho ; Caio Arthur Santos ; Eliza Inez Nunes Peixoto ; Elton Luiz Dantas ; Frederico Meira Faleiros ; George Luiz Luvizotto ; Gergely Andres Julio Szabó ; Mauricio Pavan Silva ; Omar Bartoli ; Pierre Lanari ; Rodrigo Schwantes Marimon

Abstract

The raising of mountain belts is a consequence of tectonic activity and the collision of plates, and the highest mountains are formed when two continental plates collide. The Continental geotherm is doubled and the accumulated heat generates metamorphism and partial melting, which transform and differentiates the continental crust, an irreversible process that is registered in the formed rocks during. Ancient orogens register these collisional events that occurred in the past history of Earth through their rocks, via their mineral assemblages, which record P-T-t paths that bring information on rates of heating, cooling, erosion, and time of these collisional events. How was the metamorphism and partial melting at the middle and lower portion of the continental crust. In the past 20 years our group has been investigation rocks of the Brasília and Ribeira Orogen, as well as from São Francisco Craton, in Goiás, Minas Gerais, and São Paulo. The idea of this project is the continuation of this research, expanding to areas in Bahia, but keep going with the investigation in areas we have been investigation and contributing with the knowledge of regional geology and tectonics, using for this the Metamorphic Petrology and the newest tools available for these investigations. (AU)

Scientific publications

(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)

AIRES, FELIPE DA SILVA; DOS SANTOS, LUCILENE; DE MORAES, RENATO; DE OLIVEIRA, ARMANDO LUCAS SOUZA; GILIO, MATTIA; PESTILHO, ANDRE LUIZ SILVA; DOS SANTOS, FELIPE HOLANDA; CRUZ, CARLOS EDUARDO MACIEL. Using elastic geobarometry to unveil subduction-collision and rapid exhumation in the West Gondwana Orogen: Application to high-T/HP rocks in the NW part of the Borborema Province, NE Brazil. LITHOS, v. 494, p. 11-pg., 2024-12-21. (23/17675-2, 23/07347-8)

BARROS, RENATO DE ASSIS; MORAES, RENATO; PINHEIRO, MARCO AURELIO PIACENTINI; DE CARVALHO, CIRO DUARTE; LANA, CRISTIANO DE CARVALHO. Geochronology and stratigraphy of the Boa Vista de Minas Group: An example of a Meso-to Neoarchean greenstone-belt in amphibolite-to granulite-facies. Journal of South American Earth Sciences, v. 157, p. 20-pg., 2025-03-11. (23/07347-8)