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dc.contributor.author
Soares, Marcus Vinícius Theodoro
dc.contributor.author
Basilici, Giorgio
dc.contributor.author
Lorenzoni, Paolo
dc.contributor.author
Colombera, Luca
dc.contributor.author
Mountney, Nigel Philip
dc.contributor.author
Martinelli, Agustín Guillermo
dc.contributor.author
Ferreira Mesquita, Áquila
dc.contributor.author
da Silva Marinho, Thiago
dc.contributor.author
Vásconez García, Richard Guillermo
dc.contributor.author
Marconato, André
dc.date.available
2021-05-04T16:05:46Z
dc.date.issued
2020-12
dc.identifier.citation
Soares, Marcus Vinícius Theodoro; Basilici, Giorgio; Lorenzoni, Paolo; Colombera, Luca; Mountney, Nigel Philip; et al.; Landscape and depositional controls on palaeosols of a distributive fluvial system (Upper Cretaceous, Brazil); Elsevier Science; Sedimentary Geology; 410; 12-2020; 1-32
dc.identifier.issn
0037-0738
dc.identifier.uri
http://hdl.handle.net/11336/131305
dc.description.abstract
The stratigraphic record of distributive fluvial systems is commonly characterised by frequent and complex interstratification of palaeosols among channel and overbank deposits. However, current models focus primarily on sedimentation and pay only limited attention to palaeopedogenesis, thereby failing to incorporate important palaeoenvironmental and stratigraphic information. This study proposes a pedosedimentary model for distributive fluvial systems that depicts and accounts for two palaeopedogenetic trends: one downdip, in relation to distality from the fan apex, and one along-strike, in relation to distance from active channel belts. Palaeosols are reported in detail from an Upper Cretaceous succession of the Bauru Basin, southeastern Brazil, through the application of macro-, micromorphological and geochemical studies, combined with facies and architectural-element analyses of sediments. In the downdip palaeopedogenetic trend, the proximal zone of the depositional system is characterised by a dominance of well-drained Inceptisols that develop on amalgamated channel fills; in the medial zone, Inceptisols occur interlayered with overbank deposits containing Entisols and poorly drained Vertisols. The distal zone preserves more mature and poorly drained Inceptisols developed on deposits of overbank and sporadic distal channel fills. These pedotypes show an increase in maturity and hydromorphism, moving away from the apex to the fan toe. This is likely linked to (i) the progressive approach of the topographic surface to the water table, and (ii) the average increase in distance to an active channel belt in distal locations. The along-strike palaeopedogenetic trend culminates in poorly developed palaeosols in floodplain regions that correspond to topographic depressions located between channel belts and which were subject to recurrent floods. Because palaeopedogenesis in the floodplain region is penecontemporaneous to sedimentation, pedotypes show an increase in maturity, bioinduced calcification and hydromorphism with distance from the active channels; they pass laterally from Entisols and Inceptisols near active channels, to Vertisols away from active channels. Conversely, following avulsion, abandoned channel belts remain as topographically elevated alluvial ridges located at some distance from the newly active channels and positioned above the water table and this leads to the development of better drained and better developed Inceptisols relative to pedotypes of the floodplain region. Overall, both palaeopedogenetic trends demonstrate the overriding controls of topography, sedimentation rate and parent material on pedogenesis, with only minor climatic influence. This work offers a novel pedosedimentary model for distributive fluvial systems and highlights the palaeoenvironmental significance of palaeosol trends, providing new constraints for the recognition of distributive fluvial systems in the rock record.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
BAURU GROUP
dc.subject
DEPOSITIONAL ARCHITECTURE
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FLUVIAL FAN
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GEOCHEMICAL PROXIES
dc.subject
PALAEOSOL MICROMORPHOLOGY
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PEDOGENESIS
dc.subject.classification
Paleontología
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Ciencias de la Tierra y relacionadas con el Medio Ambiente
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Landscape and depositional controls on palaeosols of a distributive fluvial system (Upper Cretaceous, Brazil)
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-04-28T21:29:18Z
dc.journal.volume
410
dc.journal.pagination
1-32
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Soares, Marcus Vinícius Theodoro. Universidade Estadual de Campinas; Brasil
dc.description.fil
Fil: Basilici, Giorgio. Universidade Estadual de Campinas; Brasil. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Universidad Nacional de La Rioja. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Universidad Nacional de Catamarca. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Secretaría de Industria y Minería. Servicio Geológico Minero Argentino. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Provincia de La Rioja. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja; Argentina
dc.description.fil
Fil: Lorenzoni, Paolo. No especifíca;
dc.description.fil
Fil: Colombera, Luca. University Of Leeds.; Reino Unido
dc.description.fil
Fil: Mountney, Nigel Philip. University Of Leeds.; Reino Unido
dc.description.fil
Fil: Martinelli, Agustín Guillermo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
dc.description.fil
Fil: Ferreira Mesquita, Áquila. Universidade Estadual de Campinas; Brasil
dc.description.fil
Fil: da Silva Marinho, Thiago. Universidade Federal Do Triangulo Mineiro; Brasil
dc.description.fil
Fil: Vásconez García, Richard Guillermo. Universidade Estadual de Campinas; Brasil
dc.description.fil
Fil: Marconato, André. Universidade Federal de Ouro Preto; Brasil
dc.journal.title
Sedimentary Geology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.sedgeo.2020.105774
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0037073820301895