Geochemical analysis of clayish sedimentary rocks from the contents of major elements, loss on ignition and X-RAY diffraction

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dc.contributor.authorTorres, Maria Margarita [UNESP]
dc.contributor.authorChristofoletti, Sérgio Ricardo
dc.contributor.authorSardinha, Diego de Souza
dc.contributor.authorGodoy, Letícia Hirata
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionInstituto Florestal-Governo do Estado de São Paulo
dc.contributor.institutionUniversidade Federal de Alfenas
dc.date.accessioned2018-12-11T17:21:50Z
dc.date.available2018-12-11T17:21:50Z
dc.date.issued2018-01-01
dc.description.abstractGeochemical studies were performed in clayish sedimentary rocks from Corumbataí Formation, a Paraná Basin geological unit, used as raw material for ceramic products, in order to extract information from major elements chemical analysis along with field descriptions. Through these data, variations and similarities were established among the clayish strata of three mines located in distinct municipalities of the studied region. Special attention was given to the loss on ignition, since it results mainly from the CO2 and/or water release during heating at 1000°C. The used oxides/chemical elements ratios, when plotted, show clusters and/or sequences that results from proportion, component types and weathering state of the sampled materials, which was verified by X-ray diffraction analysis. Thus fluxing effect of certain elements at temperatures greater than 1000°C was evaluated, such as sodium, which can modify the observed behavior when loss on ignition is used as the variable.en
dc.description.affiliationDepto de Petrologia e Metalogenia-IGCE-UNESP-Univ. Estadual Paulista
dc.description.affiliationInstituto Florestal-Governo do Estado de São Paulo
dc.description.affiliationUniversidade Federal de Alfenas
dc.description.affiliationUnespDepto de Petrologia e Metalogenia-IGCE-UNESP-Univ. Estadual Paulista
dc.format.extent39-53
dc.identifier.citationGeociencias, v. 37, n. 1, p. 39-53, 2018.
dc.identifier.issn1980-900X
dc.identifier.issn0101-9082
dc.identifier.scopus2-s2.0-85050484342
dc.identifier.urihttp://hdl.handle.net/11449/176633
dc.language.isopor
dc.relation.ispartofGeociencias
dc.relation.ispartofsjr0,230
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectCeramics
dc.subjectClays
dc.subjectGeochemistry
dc.subjectSedimentary rocks
dc.titleGeochemical analysis of clayish sedimentary rocks from the contents of major elements, loss on ignition and X-RAY diffractionen
dc.titleAnálise geoquímica de rochas sedimentares argilosas a partir do conteúdo dos elementos maiores, perda ao fogo e difração de raios Xpt
dc.typeArtigo

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Artigos - Petrologia e Metalogenia - IGCE