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Use este identificador para citar o ir al link de este elemento: http://hdl.handle.net/1843/52436
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Campo DCValorIdioma
dc.creatorAna Carolina Campos Mateuspt_BR
dc.creatorAngélica Fortes Drummond Chicarino Varajãopt_BR
dc.creatorFábio Soares de Oliveirapt_BR
dc.creatorSabine Petitpt_BR
dc.creatorCarlos Ernesto Gonçalves Reynaud Schaeferpt_BR
dc.date.accessioned2023-04-24T21:18:39Z-
dc.date.available2023-04-24T21:18:39Z-
dc.date.issued2020-07-16-
dc.citation.volume44pt_BR
dc.citation.spagee0200007pt_BR
dc.citation.epage22pt_BR
dc.identifier.doihttp://doi.org/10.36783/18069657rbcs20200007pt_BR
dc.identifier.issn1806-9657pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/52436-
dc.description.resumoThe pedological studies carried out so far in Trindade Island (TI) have obtained patchy evidences of allophane, without detailed mineralogical and micromorphological studies to confirm the occurrence of Andosols in TI. Therefore, in this study, the mineralogical, micromorphological, physical and chemical characterization of four soil profiles from Vulcão do Paredão (P1) and Morro Vermelho formations (P2, P3, and P4) were carried on the latest volcanic events in Brazil from Trindade Island (TI) with the aim of to evaluate the presence of Andosols in this oceanic island. Profiles P1 and P2 are developed on pyroclastic bombs, and show, respectively, A-Bi- C and decapitated A-C horizons, whereas P3 and P4 are developed on lapillitic and bomb pyroclasts, show A-C horizons. The soil profiles have a reddish and brownish clayey matrix, are highly friable and show a plastic consistency. Their microstructures are granular, single grain and intergrain microaggregate, in which aggregates display an undifferentiated b-fabric. The mineralogical constituents of the bulk fraction are biotite, hematite, magnetite, ilmenite, pyroxene, olivine, halloysite, goethite, anatase, and rutile. The clay fraction is marked by the presence of halloysite, ferrihydrite, and little amounts of allophane. All soils presented andic properties and can be classified as non-allophanic Andosols. In addition, micromorphological features closely resemble those reported in Andosols from other volcanic islands from elsewhere. The predominance of halloysite in the clay fraction formed by alteration of sideromelane, suggests that allophane would be an intermediate phase of this rapid transformation favored by the wet climate conditions of the highest parts of TI.pt_BR
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológicopt_BR
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Geraispt_BR
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorpt_BR
dc.format.mimetypepdfpt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentIGC - DEPARTAMENTO DE GEOGRAFIApt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofRevista Brasileira de Ciência do Solopt_BR
dc.rightsAcesso Abertopt_BR
dc.subjectVolcanic islandpt_BR
dc.subjectAndic propertiespt_BR
dc.subjectAndisolspt_BR
dc.subjectHalloysitept_BR
dc.subject.otherVulcõespt_BR
dc.subject.otherIlhas - Atlântico, Oceanopt_BR
dc.subject.otherCiência do solopt_BR
dc.subject.otherSolopt_BR
dc.titleNon-allophanic andosols of Trindade Island, South Atlantic: a new soil order in Brazilpt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://www.rbcsjournal.org/article/non-allophanic-andosols-of-trindade-island-south-atlantic-a-new-soil-order-in-brazil/pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-6345-1835pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-9930-1801pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-1450-7609pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-3704-7537pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-7060-1598pt_BR
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