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: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Texto Completo: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/1112544 http://dx.doi.org/10.1590/18069657rbcs20180219 |
Resumo: | 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 plateau.Solo TropicalFerralsoloCambissoloRochaThe 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.FERNANDO CARTAXO ROLIM NETO, UFRPE; CARLOS ERNESTO GONÇALVES REYNAUD SCHAEFER, UFV; DANILO DE LIMA CAMÊLO, UFES; MARCELO METRI CORRÊA, UFRPE; ROBERTO DA BOA VIAGEM PARAHYBA, CNPS; ANILDO MONTEIRO CALDAS, UFRPE; ANIFO SOARES MAMUDO IBRAIMO, UFV.ROLIM NETO, F. C.SCHAEFER, C. E. G. R.CAMÊLO, D. de L.CORRÊA, M. M.PARAHYBA, R. da B. V.CALDAS, A. M.IBRAIMO, A. S. M.2019-09-28T00:48:30Z2019-09-28T00:48:30Z2019-09-2720192019-12-19T11:11:11Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleRevista Brasileira de Ciência do Solo, v. 43, e0180219, 2019.http://www.alice.cnptia.embrapa.br/alice/handle/doc/1112544http://dx.doi.org/10.1590/18069657rbcs20180219enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2019-09-28T00:48:37Zoai:www.alice.cnptia.embrapa.br:doc/1112544Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542019-09-28T00:48:37falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542019-09-28T00:48:37Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)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, F. C. Solo Tropical Ferralsolo Cambissolo Rocha |
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, F. C. |
author_facet |
ROLIM NETO, F. C. SCHAEFER, C. E. G. R. CAMÊLO, D. de L. CORRÊA, M. M. PARAHYBA, R. da B. V. CALDAS, A. M. IBRAIMO, A. S. M. |
author_role |
author |
author2 |
SCHAEFER, C. E. G. R. CAMÊLO, D. de L. CORRÊA, M. M. PARAHYBA, R. da B. V. CALDAS, A. M. IBRAIMO, A. S. M. |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
FERNANDO CARTAXO ROLIM NETO, UFRPE; CARLOS ERNESTO GONÇALVES REYNAUD SCHAEFER, UFV; DANILO DE LIMA CAMÊLO, UFES; MARCELO METRI CORRÊA, UFRPE; ROBERTO DA BOA VIAGEM PARAHYBA, CNPS; ANILDO MONTEIRO CALDAS, UFRPE; ANIFO SOARES MAMUDO IBRAIMO, UFV. |
dc.contributor.author.fl_str_mv |
ROLIM NETO, F. C. SCHAEFER, C. E. G. R. CAMÊLO, D. de L. CORRÊA, M. M. PARAHYBA, R. da B. V. CALDAS, A. M. IBRAIMO, A. S. M. |
dc.subject.por.fl_str_mv |
Solo Tropical Ferralsolo Cambissolo Rocha |
topic |
Solo Tropical Ferralsolo Cambissolo Rocha |
description |
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 |
2019-09-28T00:48:30Z 2019-09-28T00:48:30Z 2019-09-27 2019 2019-12-19T11:11:11Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Revista Brasileira de Ciência do Solo, v. 43, e0180219, 2019. http://www.alice.cnptia.embrapa.br/alice/handle/doc/1112544 http://dx.doi.org/10.1590/18069657rbcs20180219 |
identifier_str_mv |
Revista Brasileira de Ciência do Solo, v. 43, e0180219, 2019. |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1112544 http://dx.doi.org/10.1590/18069657rbcs20180219 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
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EMBRAPA |
institution |
EMBRAPA |
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Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
collection |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
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1794503480631623680 |