Micromorphology and Genesis of Soils from Topolitosequences in the Brazilian Central Plateau
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Brasileira de Ciência do Solo (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832019000100307 |
Resumo: | ABSTRACT The micromorphology of deeply weathered soils (Ferralsols/ Latossolos ) from the Central Plateau of Brazil remains little studied, and its affiliation to different parent materials, poorly known. To clarify the processes of soil formation of these acric, gibbsitic, Fe-oxide rich Ferralsols, three lithotoposequences on local ultrabasic to basic intrusive rocks were studied. The influences of mixing and pedobioturbation are evident in all soils, and Ferralsols of the Central Plateau of Brazil are polygenetic, based on the coarse mineral composition, with ultrabasic and metapelitic rock contributions. The typical oxic microstructure with stable microaggregates encompasses a gibbsite/Fe rich micromass with random inclusions of charcoal, allochthonous quartz, Ti-magnetite, and perovskite grains. Shallow Cambisols ( Cambissolos ) on tuffites also display a similar “oxic” microstructure, but a much lower degree of weathering. These Cambisols possesses apatite, and mafic and pelitic minerals as residuals minerals grains, indicating the polygenetic colluvia mixture of different substrates. The common occurrence of perovskite (CaTiO3) as a residual grain in deep-weathered, acric Ferralsols on ultrabasic rocks, not yet reported in the literature, shows an unusual resistant Ca reserve in oxic soils, though nothing is known about its implications to soil fertility. |
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Micromorphology and Genesis of Soils from Topolitosequences in the Brazilian Central PlateauFerralsolsCambisolsmafic rocksultramaficsperovskitetropical soilsABSTRACT The micromorphology of deeply weathered soils (Ferralsols/ Latossolos ) from the Central Plateau of Brazil remains little studied, and its affiliation to different parent materials, poorly known. To clarify the processes of soil formation of these acric, gibbsitic, Fe-oxide rich Ferralsols, three lithotoposequences on local ultrabasic to basic intrusive rocks were studied. The influences of mixing and pedobioturbation are evident in all soils, and Ferralsols of the Central Plateau of Brazil are polygenetic, based on the coarse mineral composition, with ultrabasic and metapelitic rock contributions. The typical oxic microstructure with stable microaggregates encompasses a gibbsite/Fe rich micromass with random inclusions of charcoal, allochthonous quartz, Ti-magnetite, and perovskite grains. Shallow Cambisols ( Cambissolos ) on tuffites also display a similar “oxic” microstructure, but a much lower degree of weathering. These Cambisols possesses apatite, and mafic and pelitic minerals as residuals minerals grains, indicating the polygenetic colluvia mixture of different substrates. The common occurrence of perovskite (CaTiO3) as a residual grain in deep-weathered, acric Ferralsols on ultrabasic rocks, not yet reported in the literature, shows an unusual resistant Ca reserve in oxic soils, though nothing is known about its implications to soil fertility.Sociedade Brasileira de Ciência do Solo2019-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832019000100307Revista Brasileira de Ciência do Solo v.43 2019reponame:Revista Brasileira de Ciência do Solo (Online)instname:Sociedade Brasileira de Ciência do Solo (SBCS)instacron:SBCS10.1590/18069657rbcs20180219info:eu-repo/semantics/openAccessRolim Neto,Fernando CartaxoSchaefer,Carlos Ernesto Gonçalves ReynaudCamêlo,Danilo de LimaCorrêa,Marcelo MetriParahyba,Roberto da Boa ViagemCaldas,Anildo MonteiroIbraimo,Anifo Soares Mamudoeng2019-09-05T00:00:00Zoai:scielo:S0100-06832019000100307Revistahttp://www.scielo.br/scielo.php?script=sci_serial&pid=0100-0683&lng=es&nrm=isohttps://old.scielo.br/oai/scielo-oai.php||sbcs@ufv.br1806-96570100-0683opendoar:2019-09-05T00:00Revista Brasileira de Ciência do Solo (Online) - Sociedade Brasileira de Ciência do Solo (SBCS)false |
dc.title.none.fl_str_mv |
Micromorphology and Genesis of Soils from Topolitosequences in the Brazilian Central Plateau |
title |
Micromorphology and Genesis of Soils from Topolitosequences in the Brazilian Central Plateau |
spellingShingle |
Micromorphology and Genesis of Soils from Topolitosequences in the Brazilian Central Plateau Rolim Neto,Fernando Cartaxo Ferralsols Cambisols mafic rocks ultramafics perovskite tropical soils |
title_short |
Micromorphology and Genesis of Soils from Topolitosequences in the Brazilian Central Plateau |
title_full |
Micromorphology and Genesis of Soils from Topolitosequences in the Brazilian Central Plateau |
title_fullStr |
Micromorphology and Genesis of Soils from Topolitosequences in the Brazilian Central Plateau |
title_full_unstemmed |
Micromorphology and Genesis of Soils from Topolitosequences in the Brazilian Central Plateau |
title_sort |
Micromorphology and Genesis of Soils from Topolitosequences in the Brazilian Central Plateau |
author |
Rolim Neto,Fernando Cartaxo |
author_facet |
Rolim Neto,Fernando Cartaxo Schaefer,Carlos Ernesto Gonçalves Reynaud Camêlo,Danilo de Lima Corrêa,Marcelo Metri Parahyba,Roberto da Boa Viagem Caldas,Anildo Monteiro Ibraimo,Anifo Soares Mamudo |
author_role |
author |
author2 |
Schaefer,Carlos Ernesto Gonçalves Reynaud Camêlo,Danilo de Lima Corrêa,Marcelo Metri Parahyba,Roberto da Boa Viagem Caldas,Anildo Monteiro Ibraimo,Anifo Soares Mamudo |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Rolim Neto,Fernando Cartaxo Schaefer,Carlos Ernesto Gonçalves Reynaud Camêlo,Danilo de Lima Corrêa,Marcelo Metri Parahyba,Roberto da Boa Viagem Caldas,Anildo Monteiro Ibraimo,Anifo Soares Mamudo |
dc.subject.por.fl_str_mv |
Ferralsols Cambisols mafic rocks ultramafics perovskite tropical soils |
topic |
Ferralsols Cambisols mafic rocks ultramafics perovskite tropical soils |
description |
ABSTRACT The micromorphology of deeply weathered soils (Ferralsols/ Latossolos ) from the Central Plateau of Brazil remains little studied, and its affiliation to different parent materials, poorly known. To clarify the processes of soil formation of these acric, gibbsitic, Fe-oxide rich Ferralsols, three lithotoposequences on local ultrabasic to basic intrusive rocks were studied. The influences of mixing and pedobioturbation are evident in all soils, and Ferralsols of the Central Plateau of Brazil are polygenetic, based on the coarse mineral composition, with ultrabasic and metapelitic rock contributions. The typical oxic microstructure with stable microaggregates encompasses a gibbsite/Fe rich micromass with random inclusions of charcoal, allochthonous quartz, Ti-magnetite, and perovskite grains. Shallow Cambisols ( Cambissolos ) on tuffites also display a similar “oxic” microstructure, but a much lower degree of weathering. These Cambisols possesses apatite, and mafic and pelitic minerals as residuals minerals grains, indicating the polygenetic colluvia mixture of different substrates. The common occurrence of perovskite (CaTiO3) as a residual grain in deep-weathered, acric Ferralsols on ultrabasic rocks, not yet reported in the literature, shows an unusual resistant Ca reserve in oxic soils, though nothing is known about its implications to soil fertility. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832019000100307 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832019000100307 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/18069657rbcs20180219 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Ciência do Solo |
publisher.none.fl_str_mv |
Sociedade Brasileira de Ciência do Solo |
dc.source.none.fl_str_mv |
Revista Brasileira de Ciência do Solo v.43 2019 reponame:Revista Brasileira de Ciência do Solo (Online) instname:Sociedade Brasileira de Ciência do Solo (SBCS) instacron:SBCS |
instname_str |
Sociedade Brasileira de Ciência do Solo (SBCS) |
instacron_str |
SBCS |
institution |
SBCS |
reponame_str |
Revista Brasileira de Ciência do Solo (Online) |
collection |
Revista Brasileira de Ciência do Solo (Online) |
repository.name.fl_str_mv |
Revista Brasileira de Ciência do Solo (Online) - Sociedade Brasileira de Ciência do Solo (SBCS) |
repository.mail.fl_str_mv |
||sbcs@ufv.br |
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1752126522180763648 |