Results 31 to 40 of about 7,530 (165)

U–Pb and Sm–Nd geochronology of amphibolites from the Curaçá Belt, São Francisco Craton, Brazil : tectonic implications [PDF]

open access: yes, 2007
The Curaçá terrane is part of the Itabuna–Salvador–Curaçá (I–S–C) Paleoproterozoic orogen in the São Francisco craton, northeastern Brazil, and comprises supracrustal rocks, gneisses of their probable basement, amphibolites, and mafic-ultramafic Cu ...
Dantas, Elton Luiz   +4 more
core   +1 more source

Chemical Characterization of Chromite from the Crominia and Mairipotaba Massifs, Goiás, Brazil [PDF]

open access: yesGeologia USP. Série Científica, 2010
Metaultramafi c bodies tectonically emplaced within the metasedimentary sequence of the Araxá Group are associatedwith an ophiolitic melange in southeast Goiás. In the region of Cromínia - Mairipotaba, they occur as lenticular bodiesaligned E-W. Cumulate
Nélson Angeli   +3 more
doaj  

Confirming the impact origin of the São Miguel do Tapuio structure, northeastern Brazil

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract The São Miguel do Tapuio structure (SMT) is a remarkable, nearcircular feature of about 21 km diameter, centered at 5°37.6′ S, 41°23.3′ W in Piauí state, northeastern Brazil. The structure is located within the sedimentary strata of the Paleozoic–Mesozoic Parnaíba Basin and predominantly comprises sandstones of the Devonian Pimenteiras and ...
Alvaro Penteado Crósta   +9 more
wiley   +1 more source

Brazilian engagement to Asia and the Belt and Road Initiative in 2017: less politics, more trade and investments

open access: yesEstudos Internacionais, 2018
The paper aims to understand Brazilian position in relation to Asia and Belt and Road Initiative (BRI), based on a review of the bibliography and journalistic articles on Brazil-Asia subject and an observance of official data of the Brazilian economy ...
João Paulo Nicolini Gabriel   +2 more
doaj   +1 more source

Araguainha Dome, Brazil: A polygonal impact structure due to a complex pre‐impact regional structural framework

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract We investigated the structural framework of the north–northwestern Paraná Basin in Brazil to test whether the pre‐impact structures in this region may have had any influence on the first‐order formation and morphostructure of the Araguainha impact structure (AIS).
Renato B. Bernardes   +5 more
wiley   +1 more source

The Canastra Group in the type-area, Tapira region, southwest of Minas Gerais State, Brazil [PDF]

open access: yesGeologia USP. Série Científica, 2012
This work aimed at describing the Neoproterozoic evolution of a Southern Brasília Fold Belt segment, in Tapira area(southwest of Minas Gerais state, Brazil), using detailed geologic mapping.
Carlos Humberto da Silva   +4 more
doaj  

Study of the relationship pedo-geomorphological in the soil distribution with argillic horizons in the landscape of Lavras (MG), Brazil [PDF]

open access: yes, 2008
O entendimento das relações entre geologia, geomorfologia e pedologia auxilia nas atividades de classificação dos solos e na avaliação da distribuição pedológica de uma área. Este trabalho foi motivado pela escassez de estudos dessa natureza na região de
Alves, Helena Maria Ramos   +4 more
core   +1 more source

Evaluating the sustainability of mineral water consumption using multi‐scale hydrogeophysics in Caxambu, Brazil

open access: yesNear Surface Geophysics, Volume 24, Issue 3, Page 234-251, June 2026.
Abstract A better understanding of the near‐surface aquifer system of the Caxambu Water Park, located in the Minas Gerais State, Brazil, has been achieved. The study aimed to identify groundwater reservoirs and flow patterns and contribute to the hydrogeological conceptual model using a multi‐scale geophysical approach.
Emanuele F. La Terra   +5 more
wiley   +1 more source

A mineral potential mapping approach for supergene nickel deposits in southwestern São Francisco Craton, Brazil

open access: yesBrazilian Journal of Geology
: Southwestern São Francisco Craton makes limit with Brasília thrust-fold belt and involves rocks from Archean to formed during the Brasiliano-Pan Africano Neoproterozoic event, including a mafic-ultramafic belt (Morro do Ferro Greenstone Belt) hosted ...
João Gabriel Motta   +1 more
doaj   +1 more source

U-Pb zircon SHRIMP data from the Cana Bravalayered complex: new constraints for themafic-ultramafic intrusions of Northern Goiás,Brazil

open access: yesOpen Geosciences, 2015
The Cana Brava Complex is the northernmostand least well known layered intrusion of a discontinuousbelt of mafic-ultramafic massifs within the Brasilia Belt,which also comprises theNiquelândia and Barro Alto complexes.Available geochronological data from
Giovanardi T.   +5 more
doaj   +1 more source

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