The Horto-Baratinha itabirite-hosted iron ore: A basal fragment of the Espinhaço basin in the eastern São Francisco Craton
Sign Up to like & getrecommendations! Published in 2019 at "Journal of South American Earth Sciences"
DOI: 10.1016/j.jsames.2018.11.013
Abstract: Abstract The Horto-Baratinha (HBD) iron ore deposit is located at the eastern border of Sao Francisco Craton, comprising BIF-hosted high-grade bodies (>60 wt.% Fe) associated with polydeformed quartz-mica-schists, amphibole-schist of Statherian maximum deposition age, enclosed by… read more here.
Keywords: horto baratinha; francisco craton; hematite; iron ... See more keywords
Tectonic evolution of the Neoarchean Mundo Novo greenstone belt, eastern São Francisco Craton, NE Brazil: Petrology, U-Pb geochronology, and Nd and Sr isotopic constraints
Sign Up to like & getrecommendations! Published in 2019 at "Journal of South American Earth Sciences"
DOI: 10.1016/j.jsames.2019.102296
Abstract: Abstract Field, petrographic, lithogeochemical, LA-ICP-MS in situ U-Pb zircon geochronology, and Nd and Sr isotopic data were used to determine the geologic evolution, timing of volcanism and tectonic setting of the Mundo Novo greenstone belt… read more here.
Keywords: geochronology; greenstone belt; francisco craton; petrology ... See more keywords
Zircon U-Pb ages and Hf isotope compositions of Açucena Granite (Borrachudos Suite): Implications for Statherian-Cambrian tectono-magmatic evolution of the southern border of the São Francisco Craton, Brazil
Sign Up to like & getrecommendations! Published in 2020 at "Journal of South American Earth Sciences"
DOI: 10.1016/j.jsames.2020.102543
Abstract: Abstract Isotopic Lu–Hf and geochronological studies on the zircon grains of the Paleoproterozoic Borrachudos Suite provide constrains of the evolution of the tectonomagmatic events that affected the southern border of the Sao Francisco Craton and… read more here.
Keywords: francisco craton; borrachudos suite; southern border; zircon ... See more keywords
Meso to Neoproterozoic polyphase rifting and tectonic inversion: The example of the São João del Rei region at the southern border of the São Francisco Craton, Brazil
Sign Up to like & getrecommendations! Published in 2021 at "Journal of South American Earth Sciences"
DOI: 10.1016/j.jsames.2021.103294
Abstract: Abstract The up to 3000 m thick Mesoproterozoic and Neoproterozoic sedimentary succession exposed at the southern border of the Sao Francisco Craton, Sao Joao del Rei region (southern Minas Gerais State, Brazil), records the stacking of… read more here.
Keywords: rei region; region southern; southern border; francisco craton ... See more keywords
Metallogenesis of the Rhyacian Lavra Velha gold-rich IOCG deposit in the São Francisco Craton, Brazil
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DOI: 10.1016/j.oregeorev.2021.104148
Abstract: Abstract Lavra Velha is a newly discovered Rhyacian IOCG deposit in the northern portion of the Sao Francisco Craton, in the Bahia state of NE Brazil. Gold and copper mineralization is hosted by epigenetic hydrothermal… read more here.
Keywords: francisco craton; iocg deposit; lavra velha; deposit ... See more keywords
Comparative geological evolution of the Borborema Province and São Francisco Craton (eastern Brazil): Decratonization and crustal reworking during West Gondwana assembly and implications for paleogeographic reconstructions
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DOI: 10.1016/j.precamres.2021.106119
Abstract: Abstract 70–80% of the continental crust was produced during the 4.0–2.0 Ga time span, but the preserved area of Archean/early Paleoproterozoic cratons is smaller than 40%. Part of this deficit can be accounted for by the… read more here.
Keywords: paleoproterozoic; borborema province; crust; francisco craton ... See more keywords
Post‐Great Oxidation Event Orosirian–Statherian iron formations on the São Francisco craton: Geotectonic implications
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DOI: 10.1111/iar.12300
Abstract: The protocratonic core of the São Francisco craton assembled during the 2.1–2.0 Ga Transamazonian orogeny. Orosirian Fe‐rich sequences that extend from the northwestern border of the São Francisco protocraton (Colomi Group) to the southeast under the… read more here.
Keywords: iron; iron formations; great oxidation; oxidation event ... See more keywords
Sedimentary and U-Pb detrital zircons provenance of the Paleoproterozoic Piracicaba and Sabará groups, Quadrilátero Ferrífero, Southern São Francisco craton, Brazil
Sign Up to like & getrecommendations! Published in 2019 at "Brazilian Journal of Geology"
DOI: 10.1590/2317-4889201920180095
Abstract: The Quadrilatero Ferrifero is an important mineral province located in Southern Sao Francisco craton, SE Brazil. Its prominent feature is the Gandarela syncline that was formed as part of the regional deformation event in the… read more here.
Keywords: craton; francisco craton; sabara group; sedimentary detrital ... See more keywords