A5054835255- Geological and Geochemical Analysis
- Geochemistry and Geologic Mapping
- earthquake and tectonic studies
- Paleontology and Stratigraphy of Fossils
- Geological formations and processes
- Mineralogy and Gemology Studies
- Geological and Geophysical Studies
- High-pressure geophysics and materials
- Geochemistry and Elemental Analysis
- Geological Modeling and Analysis
- Geotourism and Geoheritage Conservation
- Reservoir Engineering and Simulation Methods
- Geography and Environmental Studies
- Hydrocarbon exploration and reservoir analysis
- Geophysical and Geoelectrical Methods
Universidade do Estado do Rio de Janeiro
2018-2024
University of Portsmouth
2020-2022
The southern portion of the São Francisco Palaeocontinent in Brazil is denoted by Archean nuclei and Paleoproterozoic magmatic arcs that were amalgamated during Siderian to Orosirian orogenic processes (ca. 2.4–2.1 Ga). New isotopic U–Pb zircon Sm–Nd whole rock combined with major trace element composition analyses constrain crystallization history Neoarchean Piedade block (at ca. 2.6 Ga) Mantiqueira Complex 2.1–1.9 These therefore display quite different histories prior their amalgamation...
A robust elemental and isotopic dataset from Neoproterozoic igneous rocks discloses protracted consumption of oceanic lithosphere in the 3,000 km long orogenic system southeastern South America.Time dependent variation trends suggest that Tonian-Cryogenian magmatic formed intra-oceanic supra-subduction settings, followed by Ediacaran arc building along Andean-type continental margins.Tectonic slices basic-ultrabasic associated with deep sea exhalative are interpreted as remnants obducted...
New geochemical, U-Pb, Lu-Hf and Sr-Nd data from the Barreiro Suite metabasites in comparison with enclaves within distal Andrelândia Group orthogranulites of Juiz de Fora Complex are presented. Geochemical suggest intraplate setting, high low-TiO2 , TDMNd ages between 1.80 1.41 Ga, negative ΕNdt (87 Sr/86 Sr)i 0.714 0.747. Results contrast part enclaves, island arc tholeiites- calcalkaline basalts (IAT-CAB) geochemical signatures, 2.58 2.16 positive values (87Sr/86Sr)i 0.700 0.712. U-Pb for...
Abstract A zircon Hf isotope data set from Archean and Paleoproterozoic magmatic metasedimentary rocks of the southern São Francisco craton (Brazil) is interpreted as evidence accretionary collisional plate tectonics since at least Archean-Proterozoic boundary. During Phanerozoic, orogenies are considered end members different tectonic settings, both involving preexisting stable continental lithosphere consumption oceanic crust. However, mechanisms for formation crust during still debated,...
The late- to post-collisional stage in orogenic systems is characterized by the coeval existence of bimodal potassic ultrapotassic magmatic activity related partial melting an enriched lithospheric mantle together with crustal derived melts. In this paper, we present new whole rock geochemical analyses combined zircon and titanite U–Pb Hf isotopic data from rocks six plutons that occur within Archean Itacambira-Monte Azul block (BIMA), discuss their petrogenesis tectonic implications for São...
The southern São Francisco Paleocontinent (SFP) comprises Archean nuclei and Paleoproterozoic complexes encompassing magmatic arcs juxtaposed during a Rhyacian to Orosirian orogenic event. Juiz de Fora Complex (JFC) represents an imbricated thrust system that orthogranulites with wide compositional range formed in intra-oceanic setting the Siderian later accreted southeastern margin of SFP. Here we report new petrological, geochemical, whole-rock Nd Sr data, as well zircon U–Pb ages from...
The generation of the continental crust is widely accepted to have taken place predominantly in Archean, when TTG magmatism associated with greenstone-belt supracrustal succession development was typically followed by emplacement high-K granites before crustal stabilization. This study focuses on Campos Gerais complex (CGC), which an Archean granite-greenstone belt lithological association a tectonic window located southwesternmost portion São Francisco craton (SFC). CGC important segment...
Sanukitoid rocks make up a complete magmatic series with distinct geochemical characteristics of TTG suites and granitoids from modern arcs are regarded as markers the transition typically Archean geodynamics to plate tectonics. Although most known sanukitoid formed during Neoarchean Mesoarchean, numerous papers have characterized Paleoproterozoic arc granitoid showing affinity series. This work presents new data field, lithogeochemistry, zircon U-Pb geochronology, Sm-Nd Sr isotopic studies...