Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/342365
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dc.contributor.CRUESPUNIVERSIDADE ESTADUAL DE CAMPINASpt_BR
dc.contributor.authorunicampBatezelli, Alessandro-
dc.contributor.authorunicampLadeira, Francisco Sergio Bernardes-
dc.contributor.authorunicampNascimento, Diego Luciano do-
dc.contributor.authorunicampSilva, Márcio Luiz da-
dc.typeArtigopt_BR
dc.titleFacies and palaeosol analysis in a progradational distributive fluvial system from the Campanian-Maastrichtian Bauru Group, Brazilpt_BR
dc.contributor.authorBatezelli, Alessandro-
dc.contributor.authorBernardes Ladeira, Francisco Sergio-
dc.contributor.authordo Nascimento, Diego Luciano-
dc.contributor.authorDa Silva, Marcio Luiz-
dc.subjectFácies (Geologia)pt_BR
dc.subject.otherlanguageFacies (Geology)pt_BR
dc.description.abstractThe Upper Cretaceous Bauru Group in south-east Brazil consists of alluvial strata whose characteristics and distribution indicate a fluvial system developed in a semi-arid to arid climate. Sections exposed within a 90000km(2) study area in Minas Gerais State (in south-eastern Brazil) were evaluated using facies and palaeosol analysis to formulate depositional and pedogenic models that may account for geomorphic and climate features. From east to west, the study succession records a gradual decrease in grain size, an increase in the width/thickness ratio in channels, a decrease in the lateral and vertical connectivity of channel deposits, and an increase in overbank deposits. The fluvial architecture indicates a braided channel belt, ephemeral ribbon-channels, and an unconfined fluvial facies from east to west in the study area. The lateral and vertical distribution of facies, stratigraphic architecture and palaeocurrent data suggest proximal, medial and distal portions of a progradational distributive fluvial system. The sedimentary dynamics were marked by the building and abandonment of channels related to processes of aggradation, vegetation growth and palaeosol generation. Macromorphological and micromorphological analyses have identified pedological and mineralogical features that indicate an arid to semi-arid climate with a provenance from the north-eastern part of the basin (Alto Paranaiba Uplift). From the proximal to the distal portions of the distributive fluvial system, the palaeosol development is different. In the proximal portion, the palaeosols are absent or poorly developed, allowing a possible general comparison with the present soil order: Inceptisols and Aridisols. In the medial portion of the fluvial system, the palaeosols are well-developed and characterized by Bt, Btk, C and Ck horizons (Alfisols, Aridisols, Inceptisols and Entisols). Poorly drained to well-drained palaeosols from the base to the top in the distal plain (Aridisols and Inceptisols) are associated with geomorphic and hydromorphic changes in the fluvial system due to progradational evolution. The genetic relationship between the fluvial architecture and the palaeosols enhances the understanding that the sedimentation and pedogenesis that occurs in different portions of the distributive fluvial system are related to the tectonic and climatic evolution of the basinpt_BR
dc.relation.ispartofSedimentologypt_BR
dc.publisher.cityChichesterpt_BR
dc.publisher.countryReino Unidopt_BR
dc.publisherWileypt_BR
dc.date.issued2019-
dc.date.monthofcirculationFeb.pt_BR
dc.language.isoengpt_BR
dc.description.volume66pt_BR
dc.description.issuenumber2pt_BR
dc.description.firstpage699pt_BR
dc.description.lastpage735pt_BR
dc.rightsFechadopt_BR
dc.sourceWOSpt_BR
dc.identifier.issn0037-0746pt_BR
dc.identifier.eissn1365-3091pt_BR
dc.identifier.doi10.1111/sed.12507pt_BR
dc.identifier.urlhttps://onlinelibrary.wiley.com/doi/full/10.1111/sed.12507pt_BR
dc.description.sponsorshipCONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQpt_BR
dc.description.sponsorshipFUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESPpt_BR
dc.description.sponsordocumentnumber301200/2017-3; 308629/2015-9pt_BR
dc.description.sponsordocumentnumber2015/17632-5pt_BR
dc.date.available2020-06-01T16:26:05Z-
dc.date.accessioned2020-06-01T16:26:05Z-
dc.description.provenanceSubmitted by Mariana Aparecida Azevedo (mary1@unicamp.br) on 2020-06-01T16:26:05Z No. of bitstreams: 0. Added 1 bitstream(s) on 2020-09-03T11:56:07Z : No. of bitstreams: 1 000461255500013.pdf: 22767438 bytes, checksum: 7f344ba18cddb568bfbe419a6da0e62c (MD5)en
dc.description.provenanceMade available in DSpace on 2020-06-01T16:26:05Z (GMT). No. of bitstreams: 0 Previous issue date: 2019en
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/342365-
dc.contributor.departmentDepartamento de Geologia e Recursos Naturaispt_BR
dc.contributor.departmentDepartamento de Geografiapt_BR
dc.contributor.departmentsem informaçãopt_BR
dc.contributor.departmentsem informaçãopt_BR
dc.contributor.unidadeInstituto de Geociênciaspt_BR
dc.contributor.unidadeInstituto de Geociênciaspt_BR
dc.contributor.unidadeInstituto de Geociênciaspt_BR
dc.contributor.unidadeInstituto de Geociênciaspt_BR
dc.subject.keywordDistributive fluvial systempt_BR
dc.subject.keywordPalaeosol distributionpt_BR
dc.subject.keywordSedimentary and pedogenic processespt_BR
dc.identifier.source000461255500013pt_BR
dc.creator.orcid0000-0001-5324-7638pt_BR
dc.creator.orcid0000-0002-9990-2332pt_BR
dc.creator.orcid0000-0002-5140-7471pt_BR
dc.creator.orcidsem informaçãopt_BR
dc.type.formArtigo originalpt_BR
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