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dc.contributor.author
Warren, L.V.
dc.contributor.author
Buatois, Luis Alberto
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dc.contributor.author
Mángano, M. G.
dc.contributor.author
Simões, M. G.
dc.contributor.author
Santos, M. G. M.
dc.contributor.author
Poire, Daniel Gustavo
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dc.contributor.author
Riccomini, C.
dc.contributor.author
Assine, M. L.
dc.date.available
2020-06-23T16:02:00Z
dc.date.issued
2020-05
dc.identifier.citation
Warren, L.V.; Buatois, Luis Alberto; Mángano, M. G.; Simões, M. G.; Santos, M. G. M.; et al.; Microbially induced pseudotraces from a Pantanal soda lake, Brazil: Alternative interpretations for Ediacaran simple trails and their limits; Geological Society of America; Geology; 48; 5-2020; 1-5
dc.identifier.issn
0091-7613
dc.identifier.uri
http://hdl.handle.net/11336/107933
dc.description.abstract
Despite the absence of metazoans, structures resembling animal traces are common in a soda lake from the western Brazil Pantanal wetland. Pantanal soda lakes are ecologically extreme environments that preclude complex life, allowing extremophiles to flourish. Direct observation indicates that these structures are pseudotraces, representing groove marks that result from the interaction of wave-transported floating rafts of epibenthic microbial mat fragments with the substrate. Variations in wind/wave direction and intensity result in marks of different size and morphology. The most common pseudotraces are simple and slightly curved, narrow grooves (type 1), whereas others are straight and present raised lateral ridges (type 2). Both are V-shaped in cross section. Type 3 comprises long, sinuous, shallow grooves, displaying internal crescentic laminated infill and U-shaped cross section. The similarity of these pseudotraces to Ediacaran structures usually interpreted as animal trace fossils suggests that care should be exercised in their analysis. A set of criteria is proposed to differentiate microbially induced pseudotraces from trace fossils. Analysis of Ediacaran structures needs to be performed on a case-by-case basis, taking into account morphology, orientation, and preservation style of the structure, sedimentary environment, and presence or absence of microbial mats.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Geological Society of America
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
MISS
dc.subject
PANTANAL LAKES
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BRAZIL
dc.subject
EDIACARAN FAUNA
dc.subject.classification
Geociencias multidisciplinaria
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dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Microbially induced pseudotraces from a Pantanal soda lake, Brazil: Alternative interpretations for Ediacaran simple trails and their limits
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-06-23T13:11:57Z
dc.journal.volume
48
dc.journal.pagination
1-5
dc.journal.pais
Estados Unidos
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dc.journal.ciudad
Boulder
dc.description.fil
Fil: Warren, L.V.. Universidade Estadual Paulista Julio de Mesquita Filho; Brasil
dc.description.fil
Fil: Buatois, Luis Alberto. University Of Saskatchewan. College Of Arts And Sciences. Departament Of Geology; Canadá
dc.description.fil
Fil: Mángano, M. G.. University Of Saskatchewan. College Of Arts And Sciences. Departament Of Geology; Canadá
dc.description.fil
Fil: Simões, M. G.. Universidade de Sao Paulo; Brasil
dc.description.fil
Fil: Santos, M. G. M.. Universidad Federal Do Abc.; Brasil
dc.description.fil
Fil: Poire, Daniel Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina
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Fil: Riccomini, C.. Universidade de Sao Paulo; Brasil
dc.description.fil
Fil: Assine, M. L.. Universidade Estadual Paulista Julio de Mesquita Filho; Brasil
dc.journal.title
Geology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://pubs.geoscienceworld.org/gsa/geology/article/586770/Microbially-induced-pseudotraces-from-a-Pantanal
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1130/G47234.1
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