Results 61 to 70 of about 6,627 (195)

U–Pb ages and Hf-isotope data of detrital zircons from the late Neoarchean-Paleoproterozoic Minas Basin, SE Brazil [PDF]

, 2019
Because of its world-class iron ore deposits and promising Au and U mineralizations, the late Neoarchean to Paleoproterozoic Minas Basin (Minas Supergroup, SE of Brazil) is one of the best-studied basins in South America.
Alkmim, Fernando F., Cassino, Lucas F., Lana, Cristiano, Martínez Dopico, Carmen Irene, Moreira, Hugo S.   +4 more
core   +1 more source

Magnetite and its transformation to hematite in a soil derived from steatite. [PDF]

, 2018
O presente trabalho objetivou caracterizar o mineral magnetico e identificar suas rotas pedogeneticas de transformacao em um solo formado sobre esteatito, de Minas Gerais, Brasil.
FABRIS, J. D., GOULART, A. T., SANTANA, D. P., SANTANA, G. P.   +3 more
core  

MORFOGÊNESE NO QUADRILÁTERO FERRÍFERO/MG NO QUATERNÁRIO SUPERIOR: PROCESSOS FLUVIAIS E CONDICIONANTES PALEOAMBIENTAIS NA BACIA DO RIO DAS VELHAS

Revista Brasileira de Geomorfologia, 2018
Visando aprofundar a compreensão da geomorfologia regional, diversos levantamentos de níveis e sucessões deposicionais fluviais foram empreendidos no Quadrilátero Ferrífero nas últimas décadas. Entretanto, faltam estudos mais regionalizados, que analisem
Luiz Fernando de Paula Barros, Antônio Pereira Magalhães Junior   +1 more
doaj   +1 more source

U-Pb zircon ages and provenance of Quaternary sands: first results for Algarve (Portugal) [PDF]

, 2013
The mineralogical composition of beach sands results from several factors the most important of which are the composition of the source rocks and mixing by coastal processes. Since the pioneering work of Trask (1952) who used augite as a mineral tracer,
Campo, Leif, Machado, Nuno, Moura, Delminda, Simonetti, Antony, Veiga-Pires, C.   +4 more
core  

A GEOPHYSICAL ANALYSIS OF THE CONCEIÇÃO RIVER REGION QUADRILÁTERO FERRÍFERO, BASED ON FIELD, PETROGRAPHIC, AERIAL IMAGES AND AIRBORNE DATA: Análise geofísica da região do Rio Conceição, Quadrilátero Ferrífero, associada a dados de campo, petrográficos e de imagens aéreas [PDF]

, 2020
The Quadrilátero Ferrífero region, located in the southeast portion of the São Francisco Craton, is one of the main metallogenic provinces in Brazil. Fieldwork, petrography, high-resolution airborne geophysics (magnetic and gamma-ray spectrometry data ...
CARVALHO ALMEIDA, Ana Luiza de, MACEDO, Bárbara, OLIVEIRA, Matheus, RONCATO, Jorge   +3 more
core   +1 more source

THE INFLUENCE OF MINING IN THE QUADRILÁTERO FERRÍFERO: LANDSCAPE SPATIAL-TEMPORAL DYNAMICS

Journal of Hyperspectral Remote Sensing, 2021
The Quadrilátero Ferrífero – QF is the main producer/explorer of iron ore in Brazil, occupying the worldwide leadership group in Mineral Exploration. Considering all the environmental impacts associated with this activity, it is necessary to assess the ...
Cássia Ribeiro Macedo, Reginaldo Arthur Glória Marcelino, Arthur Amaral e Silva, J. F. Lorentz, L. R. de Assis, Vitor Juste dos Santos, M. Calijuri   +6 more
semanticscholar   +1 more source

The advertisement call, color patterns and distribution of Ischnocnema izecksohni (Caramaschi and Kisteumacher, 1989) (Anura, Brachycephalidae)

Papéis Avulsos de Zoologia, 2012
Ischnocnema izecksohni inhabits the gallery forests from the Quadrilátero Ferrífero, Southern Espinhaço range, state of Minas Gerais, southeastern Brazil, and it is considered endemic to this region. Its closest related species is I.
Pedro P. G. Taucce, Felipe S. F. Leite, Patrícia S. Santos, Renato N. Feio, Paulo C. A. Garcia   +4 more
doaj   +1 more source

Geotecnologias e suas aplicações - v. 1 [PDF]

, 2018
A produção deste trabalho é independente e surgiu da ideia e colaboração de professores, alunos e ex-alunos do curso de Geologia do Centro de Ciências Exatas, Naturais e da Saúde, da Universidade Federal do Espírito Santo. Estão contidos neste livro 6
Candotti, Calvin da Silva, Duarte, Eduardo Baudson, Marques, Rodson de Abreu, Oliveira, Fabricia Benda de   +3 more
core  

Implementation of pumped hydro/photovoltaic systems in mining-degraded areas: a case study in Quadrilátero Ferrífero, Minas Gerais, Brazil

International Journal of Renewable Energy Development
This work presents a proposal for the transformation of mining-degraded areas into renewable energy installations, converting deactivated mine pits, in the Quadrilátero Ferrífero (QF) region in state of Minas Gerais (MG), Brazil, into reservoirs for ...
Alberto De Almeida Bossi Guimarães, Adriano Silva Bastos, E. M. D. F. Viana, V.F. Mendes, C. B. Martinez   +4 more
semanticscholar   +1 more source

Detrital zircon records of the Paleo-Mesoproterozoic rift-sag Tamanduá Group in its type-section, Northern Quadrilátero Ferrífero, Minas Gerais, Brazil

Brazilian Journal of Geology, 2020
The Quadrilátero Ferrífero metallogenetic province is located in the southernmost portion of the São Francisco craton, SE Brazil. The Tamanduá and Cambotas ridges stand out topographically in the northeastern portion of Quadrilátero Ferrífero and show NE-
Luiz Fernandes Dutra, Sérgio Patusco Dias, Maximiliano Martins, Cristiano Lana, Ana Carolina Batista, Tulio Delôgo Tavares   +5 more
doaj   +1 more source