Argilominerais de Coberturas Sedimentares Cenozóicas do Centro-leste do Estado de São Paulo

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dc.contributor.authorDe Melo, Mário Sérgio
dc.contributor.authorBrandt Neto, Max [UNESP]
dc.contributor.authorCoimbra, Armando Márcio
dc.contributor.authorDe Moraes, Maria Cristina
dc.contributor.authorDe Sant'anna Taddeo, Jairo
dc.contributor.authorCuchierato, Gláucia
dc.contributor.institutionUniversidade Estadual de Ponta Grossa (UEPG)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionCoop. Servicos Pesq. Tecnologicas I.
dc.contributor.institutionIPT-DIGEO
dc.date.accessioned2014-05-27T11:18:20Z
dc.date.available2014-05-27T11:18:20Z
dc.date.issued1997-12-01
dc.description.abstractClay mineral analysis contributed to the mineralogical characterization and stratigraphic setting of continental Cenozoic deposits of central-eastern portion of São Paulo State, southeastern Brazil. These deposits, often thin and discontinuous, comprise the Itaqueri Formation (Cretaceous-Paleogene), Rio Claro Formation (Pliocene) and associated Neocenozoic deposits. X-ray diffractometry provided mineralogical and semiquantitative constitution of clays, while scanning electron microscopy (SEM) provided details about mineralogical constitution, packing of microscopic grains and nature (detrital or diagenetic) of clays. These results supported interpretations about paleoenvironmental conditions during sedimentation, revealing possible links between changing climates (dry or humid) and correlative Cenozoic deposits in southeastern Brazil. In addition, SEM images showed microstructures which influence on geotechnical behaviour (erosion and collapse phenomena) of sedimentary materials.en
dc.description.affiliationUniv. Estadual de Ponta Grossa, Cx. Postal 992/3, 84010-330 Ponta Grossa, PR
dc.description.affiliationInstituto de Biociências Letras e Ciências Exatas UNESP, Cx. Postal 136, 15054-000 Sao Jose do Rio Preto, SP
dc.description.affiliationInstituto de Geociências USP, Cx. Postal 11348, 05422-970 São Paulo, SP
dc.description.affiliationCoop. Servicos Pesq. Tecnologicas I., Cx. Postal 7141, 01064-970 São Paulo, SP
dc.description.affiliationIPT-DIGEO, Cx. Postal 7141, 01064-970 São Paulo, SP
dc.description.affiliation, Rua Nestor Guimarães 157, 84040-130 Ponta Grossa, PR
dc.description.affiliationUnespInstituto de Biociências Letras e Ciências Exatas UNESP, Cx. Postal 136, 15054-000 Sao Jose do Rio Preto, SP
dc.format.extent227-241
dc.identifier.citationAnais da Academia Brasileira de Ciencias, v. 69, n. 2, p. 227-241, 1997.
dc.identifier.issn0001-3765
dc.identifier.scopus2-s2.0-0006964559
dc.identifier.urihttp://hdl.handle.net/11449/65350
dc.language.isospa
dc.relation.ispartofAnais da Academia Brasileira de Ciências
dc.relation.ispartofjcr0.956
dc.relation.ispartofsjr0,418
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectCenozoic
dc.subjectCenozoic covers
dc.subjectClay minerals
dc.titleArgilominerais de Coberturas Sedimentares Cenozóicas do Centro-leste do Estado de São Pauloes
dc.typeArtigo
dcterms.licensehttp://www.scielo.br/revistas/aabc/paboutj.htm
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências Letras e Ciências Exatas, São José do Rio Pretopt

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