Mineralogy, magnetic susceptibility and geochemistry of Fe-rich Oxisols developed from several parent materials

Detalhes bibliográficos
Autor(a) principal: Camêlo, Danilo de Lima
Data de Publicação: 2018
Outros Autores: Ker, João Carlos, Fontes, Maurício Paulo Ferreira, Costa, Antonio Carlos Saraiva da, Corrêa, Marcelo Metri, Leopold, Matthias
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Scientia Agrícola (Online)
Texto Completo: https://www.revistas.usp.br/sa/article/view/146321
Resumo: Fe-rich Oxisols on mafic rocks in Brazil generally have high magnetic susceptibility with high contents of some trace elements. These are taxonomically similar soils; however, differences in magnetic and geochemical properties may affect agricultural or environmental usability and subsequent management. This study investigated the pedogenesis of Fe-rich Oxisols from various parent materials and evaluated the lithogenetic influence on magnetic susceptibility and trace elements contents. Soil samples were collected from Bw horizons in 13 Rhodic Oxisols and a Typic Oxisol developed from several parent materials in Minas Gerais State, Brazil. Soils were analyzed by X-ray diffractometry (XRD) and magnetometry. Soil chemical analyses consisted of sulfuric and total (tri-acid) digestions and selective Fe oxides dissolutions and statistical correlations were determined. Fe-rich Oxisols presented a typical mineralogical composition of highly weathered soils with structural stability. The results confirm the difficulty to identify accurately magnetic minerals in different grain sizes using XRD. However, coarse fractions still exert dominant influence on the magnetic properties of the Fe-rich Rhodic Oxisols. In addition, coarse fractions probably contribute to the enrichment of superparamagnetic particles for the clay fraction. Although highly weathered, Fe-rich Oxisols may have their geochemical attributes still controlled by the parent material, where trace elements seem to be correlated with the magnetic minerals in the coarse fractions. Thus, the natural replacement of some trace elements from soil-solution equilibrium reactions during plant development could be more effective in soils with higher magnetic particles concentrations in the coarse fractions.
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spelling Mineralogy, magnetic susceptibility and geochemistry of Fe-rich Oxisols developed from several parent materialsmagnetic soilsiron oxidesferrimagnetic mineralstrace elementsmafic rocks Fe-rich Oxisols on mafic rocks in Brazil generally have high magnetic susceptibility with high contents of some trace elements. These are taxonomically similar soils; however, differences in magnetic and geochemical properties may affect agricultural or environmental usability and subsequent management. This study investigated the pedogenesis of Fe-rich Oxisols from various parent materials and evaluated the lithogenetic influence on magnetic susceptibility and trace elements contents. Soil samples were collected from Bw horizons in 13 Rhodic Oxisols and a Typic Oxisol developed from several parent materials in Minas Gerais State, Brazil. Soils were analyzed by X-ray diffractometry (XRD) and magnetometry. Soil chemical analyses consisted of sulfuric and total (tri-acid) digestions and selective Fe oxides dissolutions and statistical correlations were determined. Fe-rich Oxisols presented a typical mineralogical composition of highly weathered soils with structural stability. The results confirm the difficulty to identify accurately magnetic minerals in different grain sizes using XRD. However, coarse fractions still exert dominant influence on the magnetic properties of the Fe-rich Rhodic Oxisols. In addition, coarse fractions probably contribute to the enrichment of superparamagnetic particles for the clay fraction. Although highly weathered, Fe-rich Oxisols may have their geochemical attributes still controlled by the parent material, where trace elements seem to be correlated with the magnetic minerals in the coarse fractions. Thus, the natural replacement of some trace elements from soil-solution equilibrium reactions during plant development could be more effective in soils with higher magnetic particles concentrations in the coarse fractions.Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz2018-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/sa/article/view/14632110.1590/1678-992x-2017-0087Scientia Agricola; v. 75 n. 5 (2018); 410-419Scientia Agricola; Vol. 75 Núm. 5 (2018); 410-419Scientia Agricola; Vol. 75 No. 5 (2018); 410-4191678-992X0103-9016reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USPenghttps://www.revistas.usp.br/sa/article/view/146321/140012Copyright (c) 2018 Scientia Agricolainfo:eu-repo/semantics/openAccessCamêlo, Danilo de LimaKer, João CarlosFontes, Maurício Paulo FerreiraCosta, Antonio Carlos Saraiva daCorrêa, Marcelo MetriLeopold, Matthias2018-05-18T11:15:13Zoai:revistas.usp.br:article/146321Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2018-05-18T11:15:13Scientia Agrícola (Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Mineralogy, magnetic susceptibility and geochemistry of Fe-rich Oxisols developed from several parent materials
title Mineralogy, magnetic susceptibility and geochemistry of Fe-rich Oxisols developed from several parent materials
spellingShingle Mineralogy, magnetic susceptibility and geochemistry of Fe-rich Oxisols developed from several parent materials
Camêlo, Danilo de Lima
magnetic soils
iron oxides
ferrimagnetic minerals
trace elements
mafic rocks
title_short Mineralogy, magnetic susceptibility and geochemistry of Fe-rich Oxisols developed from several parent materials
title_full Mineralogy, magnetic susceptibility and geochemistry of Fe-rich Oxisols developed from several parent materials
title_fullStr Mineralogy, magnetic susceptibility and geochemistry of Fe-rich Oxisols developed from several parent materials
title_full_unstemmed Mineralogy, magnetic susceptibility and geochemistry of Fe-rich Oxisols developed from several parent materials
title_sort Mineralogy, magnetic susceptibility and geochemistry of Fe-rich Oxisols developed from several parent materials
author Camêlo, Danilo de Lima
author_facet Camêlo, Danilo de Lima
Ker, João Carlos
Fontes, Maurício Paulo Ferreira
Costa, Antonio Carlos Saraiva da
Corrêa, Marcelo Metri
Leopold, Matthias
author_role author
author2 Ker, João Carlos
Fontes, Maurício Paulo Ferreira
Costa, Antonio Carlos Saraiva da
Corrêa, Marcelo Metri
Leopold, Matthias
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Camêlo, Danilo de Lima
Ker, João Carlos
Fontes, Maurício Paulo Ferreira
Costa, Antonio Carlos Saraiva da
Corrêa, Marcelo Metri
Leopold, Matthias
dc.subject.por.fl_str_mv magnetic soils
iron oxides
ferrimagnetic minerals
trace elements
mafic rocks
topic magnetic soils
iron oxides
ferrimagnetic minerals
trace elements
mafic rocks
description Fe-rich Oxisols on mafic rocks in Brazil generally have high magnetic susceptibility with high contents of some trace elements. These are taxonomically similar soils; however, differences in magnetic and geochemical properties may affect agricultural or environmental usability and subsequent management. This study investigated the pedogenesis of Fe-rich Oxisols from various parent materials and evaluated the lithogenetic influence on magnetic susceptibility and trace elements contents. Soil samples were collected from Bw horizons in 13 Rhodic Oxisols and a Typic Oxisol developed from several parent materials in Minas Gerais State, Brazil. Soils were analyzed by X-ray diffractometry (XRD) and magnetometry. Soil chemical analyses consisted of sulfuric and total (tri-acid) digestions and selective Fe oxides dissolutions and statistical correlations were determined. Fe-rich Oxisols presented a typical mineralogical composition of highly weathered soils with structural stability. The results confirm the difficulty to identify accurately magnetic minerals in different grain sizes using XRD. However, coarse fractions still exert dominant influence on the magnetic properties of the Fe-rich Rhodic Oxisols. In addition, coarse fractions probably contribute to the enrichment of superparamagnetic particles for the clay fraction. Although highly weathered, Fe-rich Oxisols may have their geochemical attributes still controlled by the parent material, where trace elements seem to be correlated with the magnetic minerals in the coarse fractions. Thus, the natural replacement of some trace elements from soil-solution equilibrium reactions during plant development could be more effective in soils with higher magnetic particles concentrations in the coarse fractions.
publishDate 2018
dc.date.none.fl_str_mv 2018-09-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://www.revistas.usp.br/sa/article/view/146321
10.1590/1678-992x-2017-0087
url https://www.revistas.usp.br/sa/article/view/146321
identifier_str_mv 10.1590/1678-992x-2017-0087
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://www.revistas.usp.br/sa/article/view/146321/140012
dc.rights.driver.fl_str_mv Copyright (c) 2018 Scientia Agricola
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2018 Scientia Agricola
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz
publisher.none.fl_str_mv Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz
dc.source.none.fl_str_mv Scientia Agricola; v. 75 n. 5 (2018); 410-419
Scientia Agricola; Vol. 75 Núm. 5 (2018); 410-419
Scientia Agricola; Vol. 75 No. 5 (2018); 410-419
1678-992X
0103-9016
reponame:Scientia Agrícola (Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Scientia Agrícola (Online)
collection Scientia Agrícola (Online)
repository.name.fl_str_mv Scientia Agrícola (Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv scientia@usp.br||alleoni@usp.br
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