CHEMICAL, PHYSICAL AND MINERALOGICAL CHARACTERIZATION OF OVERBURDEN ROCK AND IRON MINE SPOIL AT ALEGRIA IRON MINE, MARIANA-MG
Autor(a) principal: | |
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Data de Publicação: | 2007 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Pesquisa Agropecuária Tropical (Online) |
Texto Completo: | https://revistas.ufg.br/pat/article/view/2171 |
Resumo: | In the area under the Alegria iron mine influence (Mariana, Minas Gerais, Brazil), samples of fours materials were collected, identified as phyllite, soil, overburden rock, and mine spoil, for chemical, physical, and mineralogical characterization. All four materials are poor in plant macro and micronutrients, presenting low amounts of organic carbon and physical characteristics which hinder the development of plant root system. The high bulk density and particle density values of all materials are related to the presence of heavy minerals, mainly Fe oxides. Except for phyllite, which presented considerable amounts of silt, the materials presented high amounts of sand: more than 50%. As far as water retention is concerned, the phyllite showed the highest retention but it could be detrimental to plant growth due to excess of water and surface sealing. The mineralogy of sand, silt, and clay fractions is basically constituted by goethite, hematite, and quartz, while phyllite presents, besides these minerals, kaolinite, microcline, gibbsite, and mica. KEY-WORDS: Iron mining; mineralogical characterization; iron mine spoil. |
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CHEMICAL, PHYSICAL AND MINERALOGICAL CHARACTERIZATION OF OVERBURDEN ROCK AND IRON MINE SPOIL AT ALEGRIA IRON MINE, MARIANA-MGCARACTERIZAÇÃO QUÍMICA, FÍSICA E MINERALÓGICA DE ESTÉREIS E REJEITO DA MINERAÇÃO DE FERRO DA MINA DE ALEGRIA, MARIANA-MGIron miningmineralogical characterizationiron mine spoilMineração de ferrocaracterização de estéreis e rejeito In the area under the Alegria iron mine influence (Mariana, Minas Gerais, Brazil), samples of fours materials were collected, identified as phyllite, soil, overburden rock, and mine spoil, for chemical, physical, and mineralogical characterization. All four materials are poor in plant macro and micronutrients, presenting low amounts of organic carbon and physical characteristics which hinder the development of plant root system. The high bulk density and particle density values of all materials are related to the presence of heavy minerals, mainly Fe oxides. Except for phyllite, which presented considerable amounts of silt, the materials presented high amounts of sand: more than 50%. As far as water retention is concerned, the phyllite showed the highest retention but it could be detrimental to plant growth due to excess of water and surface sealing. The mineralogy of sand, silt, and clay fractions is basically constituted by goethite, hematite, and quartz, while phyllite presents, besides these minerals, kaolinite, microcline, gibbsite, and mica. KEY-WORDS: Iron mining; mineralogical characterization; iron mine spoil. Em área sob influência da mineração de ferro, na Mina de Alegria, em Mariana-MG, coletaram-se amostras de quatro materiais, constituídos de três diferentes estéreis, que, para identificação, foram denominados filito, solo e saprolito e um rejeito da mineração, com o objetivo de caracterizá-los química, física e mineralogicamente. Os materiais (rejeito, solo, rocha e filito) são pobres em macro e micronutrientes, apresentam baixo teor de carbono orgânico e características físicas que dificultam o desenvolvimento do sistema radicular de plantas. Apresentaram altos valores de densidade do solo e de partículas, que estão relacionados à presença de minerais pesados em suas composições mineralógicas, principalmente os minerais de ferro. Os materiais estudados, à exceção do filito, apresentaram alta quantidade de areia: mais de 50% do total. O filito apresenta maior capacidade de retenção de água, mas, para revegetação pode proporcionar excesso de água, além de propiciar a formação de uma crosta na superfície devido ao alto teor de silte. A mineralogia das frações argila, silte e areia do saprolito, do solo e do rejeito é basicamente formada por goethita, hematita e quartzo. O filito apresenta, além destes minerais, caulinita, microclínio, gibbsita e mica. PALAVRAS-CHAVE: Mineração de ferro; caracterização de estéreis e rejeito.Escola de Agronomia - Universidade Federal de Goiás2007-10-27info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresPesquisa experimental;application/pdfhttps://revistas.ufg.br/pat/article/view/2171Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 36, n. 1, Jan./Apr. 2006; 45-52Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 36, n. 1, jan./abr. 2006; 45-52Pesquisa Agropecuária Tropical; v. 36, n. 1, jan./abr. 2006; 45-521983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGporhttps://revistas.ufg.br/pat/article/view/2171/2119Silva, Gilson PereiraFontes, Maurício Paulo FerreiraCosta, Liovando Marciano daBarros, Nairam Félix deinfo:eu-repo/semantics/openAccess2009-05-26T20:08:12Zoai:ojs.revistas.ufg.br:article/2171Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:54:57.314644Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true |
dc.title.none.fl_str_mv |
CHEMICAL, PHYSICAL AND MINERALOGICAL CHARACTERIZATION OF OVERBURDEN ROCK AND IRON MINE SPOIL AT ALEGRIA IRON MINE, MARIANA-MG CARACTERIZAÇÃO QUÍMICA, FÍSICA E MINERALÓGICA DE ESTÉREIS E REJEITO DA MINERAÇÃO DE FERRO DA MINA DE ALEGRIA, MARIANA-MG |
title |
CHEMICAL, PHYSICAL AND MINERALOGICAL CHARACTERIZATION OF OVERBURDEN ROCK AND IRON MINE SPOIL AT ALEGRIA IRON MINE, MARIANA-MG |
spellingShingle |
CHEMICAL, PHYSICAL AND MINERALOGICAL CHARACTERIZATION OF OVERBURDEN ROCK AND IRON MINE SPOIL AT ALEGRIA IRON MINE, MARIANA-MG Silva, Gilson Pereira Iron mining mineralogical characterization iron mine spoil Mineração de ferro caracterização de estéreis e rejeito |
title_short |
CHEMICAL, PHYSICAL AND MINERALOGICAL CHARACTERIZATION OF OVERBURDEN ROCK AND IRON MINE SPOIL AT ALEGRIA IRON MINE, MARIANA-MG |
title_full |
CHEMICAL, PHYSICAL AND MINERALOGICAL CHARACTERIZATION OF OVERBURDEN ROCK AND IRON MINE SPOIL AT ALEGRIA IRON MINE, MARIANA-MG |
title_fullStr |
CHEMICAL, PHYSICAL AND MINERALOGICAL CHARACTERIZATION OF OVERBURDEN ROCK AND IRON MINE SPOIL AT ALEGRIA IRON MINE, MARIANA-MG |
title_full_unstemmed |
CHEMICAL, PHYSICAL AND MINERALOGICAL CHARACTERIZATION OF OVERBURDEN ROCK AND IRON MINE SPOIL AT ALEGRIA IRON MINE, MARIANA-MG |
title_sort |
CHEMICAL, PHYSICAL AND MINERALOGICAL CHARACTERIZATION OF OVERBURDEN ROCK AND IRON MINE SPOIL AT ALEGRIA IRON MINE, MARIANA-MG |
author |
Silva, Gilson Pereira |
author_facet |
Silva, Gilson Pereira Fontes, Maurício Paulo Ferreira Costa, Liovando Marciano da Barros, Nairam Félix de |
author_role |
author |
author2 |
Fontes, Maurício Paulo Ferreira Costa, Liovando Marciano da Barros, Nairam Félix de |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Silva, Gilson Pereira Fontes, Maurício Paulo Ferreira Costa, Liovando Marciano da Barros, Nairam Félix de |
dc.subject.por.fl_str_mv |
Iron mining mineralogical characterization iron mine spoil Mineração de ferro caracterização de estéreis e rejeito |
topic |
Iron mining mineralogical characterization iron mine spoil Mineração de ferro caracterização de estéreis e rejeito |
description |
In the area under the Alegria iron mine influence (Mariana, Minas Gerais, Brazil), samples of fours materials were collected, identified as phyllite, soil, overburden rock, and mine spoil, for chemical, physical, and mineralogical characterization. All four materials are poor in plant macro and micronutrients, presenting low amounts of organic carbon and physical characteristics which hinder the development of plant root system. The high bulk density and particle density values of all materials are related to the presence of heavy minerals, mainly Fe oxides. Except for phyllite, which presented considerable amounts of silt, the materials presented high amounts of sand: more than 50%. As far as water retention is concerned, the phyllite showed the highest retention but it could be detrimental to plant growth due to excess of water and surface sealing. The mineralogy of sand, silt, and clay fractions is basically constituted by goethite, hematite, and quartz, while phyllite presents, besides these minerals, kaolinite, microcline, gibbsite, and mica. KEY-WORDS: Iron mining; mineralogical characterization; iron mine spoil. |
publishDate |
2007 |
dc.date.none.fl_str_mv |
2007-10-27 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Avaliado por pares Pesquisa experimental; |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://revistas.ufg.br/pat/article/view/2171 |
url |
https://revistas.ufg.br/pat/article/view/2171 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://revistas.ufg.br/pat/article/view/2171/2119 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Escola de Agronomia - Universidade Federal de Goiás |
publisher.none.fl_str_mv |
Escola de Agronomia - Universidade Federal de Goiás |
dc.source.none.fl_str_mv |
Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 36, n. 1, Jan./Apr. 2006; 45-52 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 36, n. 1, jan./abr. 2006; 45-52 Pesquisa Agropecuária Tropical; v. 36, n. 1, jan./abr. 2006; 45-52 1983-4063 reponame:Pesquisa Agropecuária Tropical (Online) instname:Universidade Federal de Goiás (UFG) instacron:UFG |
instname_str |
Universidade Federal de Goiás (UFG) |
instacron_str |
UFG |
institution |
UFG |
reponame_str |
Pesquisa Agropecuária Tropical (Online) |
collection |
Pesquisa Agropecuária Tropical (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG) |
repository.mail.fl_str_mv |
aseleguini.pat@gmail.com||mgoes@agro.ufg.br |
_version_ |
1799874813461790720 |