Phyllite
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. Geological - geotechnical characterization of different lithotypes in an underground mine
Abstract A mineralogical, geological and geotechnical characterization of several rock types (phyllite, dolomite, breccia and marl) from an underground mine site aimed, among other things, to identify its mineral composition and to provide parameters to support the understanding of rock mass behavior. For this purpose, it was possible to perform laboratory a
REM, Int. Eng. J.. Publicado em: 2021-01
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2. Mineralogy and Concentration of Potentially Toxic Elements in Soils of the São Francisco Sedimentary Basin
ABSTRACT Lithological and geomorphological variations determine formation of soils with different mineralogical constitutions and can influence the distribution of potentially toxic elements (PTE). The aim of this study was to determine the contents of PTE and mineralogical assemblages along soil profiles of different classes and parent materials and to inve
Rev. Bras. Ciênc. Solo. Publicado em: 24/05/2018
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3. Identification of Heavy Metals in Crystals of Sand and Silt Fractions of Soils by Scanning Electron Microscopy (SEM EDS/WD-EPMA)
ABSTRACT Studies of heavy metals are concentrate on clay fractions, but coarser fractions of the soil can constitute significant sources of structural forms of heavy metals. The aim of this study was to evaluate the occurrence of heavy metals in the structure of minerals of the sand and silt fractions of soils from three different parent materials (metamorph
Rev. Bras. Ciênc. Solo. Publicado em: 08/03/2018
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4. Physicochemical Characterization of Pulverized Phyllite Rock for Geopolymer Resin Synthesis
Geopolymeric materials have some unique properties such as early-high compressive strength, durability, resistance to acids and sulfates, ability to immobilize toxic and radioactive compounds, low porosity and high temperature resistance. These materials are strategic for sustainable development and are a suitable alternative to Portland cement. The use of p
Mat. Res.. Publicado em: 06/07/2017
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5. Microwave Acid Extraction to Analyze K and Mg Reserves in the Clay Fraction of Soils
ABSTRACT: Extraction of K and Mg with boiling 1 mol L-1 HNO3 in an open system for predicting K and Mg uptake by plants is a method of low reproducibility. The aim of this study was to compare the extraction capacity of different acid methods relative to hydrofluoric acid extraction for K and Mg. A further objective was to develop a chemical extraction metho
Rev. Bras. Ciênc. Solo. Publicado em: 15/12/2016
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6. Incorporação de resíduos de placas de circuitos impressos (RPCI) em massas cerâmicas triaxiais utilizando experimentos com misturas / Incorporation of waste printed circuit boards (WPCB) in triaxial ceramic bodies using experiments with mixtures
The aim of this work is evaluate the effect of incorporation of waste printed circuit boards (WPCB) in physical and mechanical properties of triaxial ceramics for coating. Through the technique of experiment with mixtures seven formulations were developed with clay (40, 53, 60 e 80%); phyllite (20, 33, 40 e 60%) and waste (0, 14, 20 e 40%). The WPCB was char
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/02/2012
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7. Geologia da margem direita do Córrego Divisa, Bacia do São Bartolomeu-DF, escala 1:10.000.
RESUMO: Este trabalho apresenta os dados cartográficos de geologia da margem direita do Córrego Divisa, Bacia do São Bartolomeu, DF. Foram caracterizadas três unidades de mapeamento, Quartzo sericita filito, calcifito correlacionáveis à Formação Serra do Landim do Grupo Canastra, de idade Meso/Neoproterozóica. A área estudada está num contexto de
Planaltina. Publicado em: 2011
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8. ANÁLISE TENSÃO DEFORMAÇÃO E POR EQUILÍBRIO LIMITE DO MECANISMO DE TOMBAMENTO FLEXURAL
The search for maximizing mineral exploitation, associated to the safety measures needed in order to make this activity viable, force us to seek new forms of analysis to achieve these guidelines in an optimum way. The purpose of this work is to contribute to a better explanation of the breakdown of phyllite slopes by flexural toppling in the region of the Qu
Publicado em: 2008
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9. Caracterização hidrogeológica do aquífero cauê, quadrilátero ferrífero, MG: Subsídios para a gestão dos recursos hídricos no quadrilátero ferrífero
The Cauê aquifer encompasses the geological unit that is the host of the Iron Quadrangle bodies of iron ore (Cauê formation). It has got significant hydrogeological potential, which is used for part of the water supply for Belo Horizontes metropolitan area, and has got a fundamental importance for the maintenance of the general environmental conditions of
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/12/2007
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10. Avaliação do emprego de filito como carga em plastisol. / Evaluation of the use of phyllite as filler in plastisol.
Apresenta-se aqui a caracterização do filito e a avaliação da sua aplicação como carga mineral na produção de materiais plásticos. Amostras de jazidas em lavra no município de Itapeva, sudoeste do Estado de São Paulo, foram preparadas em laboratório, através de secagem e peneiramento, e analisadas física e quimicamente, sendo comparadas com out
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/01/2003