Uplift and subsidence of the RGR: U-Th/He in apatite and EPFT in zircon

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dc.contributor.authorHackspacher, Peter Christian [UNESP]
dc.contributor.authorVenancio da Silva, Bruno [UNESP]
dc.contributor.authorConstantino, Renata Regina [UNESP]
dc.contributor.authorFrançoso de Godoy, Daniel [UNESP]
dc.contributor.authorSiqueira Ribeiro, Marli Carina [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniversidade do Estado do Rio de Janeiro (UERJ)
dc.contributor.institutionLamont-Doherty Columbia University
dc.date.accessioned2023-07-29T14:03:40Z
dc.date.available2023-07-29T14:03:40Z
dc.date.issued2021-01-01
dc.description.abstractThe Rio Grande Rise (RGR) has key importance for the understanding of the South Atlantic Ocean opening and the evolution associated with lithospheric plate margins. Here we review the last 100 years of scientific work regarding the RGR history and also bring new insights on its evolution based on apatite (U-Th-Sm)/He thermochronology. We have analyzed basalt fragments sampled across the RGR NW-SE rift structure. The samples were dredged during the Rio Grande Rise Project (PROERG) expedition in 2011 from the Brazilian Geological Survey (CPRM). The RGR is interpreted as part of a tectono-sedimentary evolution that extends from the first basaltic flows in the Santonian-Coniacian, until the tectonic reactivations of the South Atlantic Plate, affecting the most recent sediments. The AHe method results address to the continuous reactivation from Late Cretaceous to Neogene and is consistent with a microplate boundary environment.en
dc.description.affiliationUniversidade do Estado São Paulo (UNESP) Department of Geology (DG) Institute of Geosciences and Exact Sciences (IGCE), Rio Claro
dc.description.affiliationDepartamento de Mineralogia e Petrologia Ígnea Faculty of Geology (FGEOL) Universidade do Estado do Rio de Janeiro (UERJ), Rio de Janeiro
dc.description.affiliationLamont-Doherty Columbia University
dc.description.affiliationUnespUniversidade do Estado São Paulo (UNESP) Department of Geology (DG) Institute of Geosciences and Exact Sciences (IGCE), Rio Claro
dc.format.extent231-256
dc.identifierhttp://dx.doi.org/10.1016/B978-0-12-823988-9.00002-2
dc.identifier.citationMeso-Cenozoic Brazilian Offshore Magmatism: Geochemistry, Petrology, and Tectonics, p. 231-256.
dc.identifier.doi10.1016/B978-0-12-823988-9.00002-2
dc.identifier.scopus2-s2.0-85137926533
dc.identifier.urihttp://hdl.handle.net/11449/249147
dc.language.isoeng
dc.relation.ispartofMeso-Cenozoic Brazilian Offshore Magmatism: Geochemistry, Petrology, and Tectonics
dc.sourceScopus
dc.subjectLow-thermochronology
dc.subjectRio Grande Rise
dc.subjectSea-floor thermal history
dc.subjectSouth Atlantic evolution
dc.subjectTectonic evolution
dc.titleUplift and subsidence of the RGR: U-Th/He in apatite and EPFT in zirconen
dc.typeCapítulo de livro

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Artigos - Petrologia e Metalogenia - IGCE