UPLIFTING MOUNTAINS AND SHAKING DESERTS: VOLCANO-TECTONIC EARTHQUAKES REVEALED BY SOFT-SEDIMENT-DEFORMATION STRUCTURES IN UPPER CRETACEOUS AEOLIAN DEPOSITS

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dc.contributor.authorAlessandretti, Luciano
dc.contributor.authorWarren, Lucas V. [UNESP]
dc.contributor.authorVarejaeo, Filipe G.
dc.contributor.authorRassi, Raul
dc.contributor.authorDos Santos, Mauricio G. M.
dc.contributor.authorSilva, Mariana N. M.
dc.contributor.authorHonorato, Fernando R.
dc.contributor.authorEstrada, Michele J. T.
dc.contributor.authorCunha, Joao V. O.
dc.contributor.institutionUniversidade Federal de Uberlândia (UFU)
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniv Fed Ouro Preto
dc.contributor.institutionUniversidade Federal do ABC (UFABC)
dc.date.accessioned2023-07-29T11:58:55Z
dc.date.available2023-07-29T11:58:55Z
dc.date.issued2023-01-01
dc.description.abstractDuring the last stages of Gondwana fragmentation, large regions of the newly formed South American continent were covered by extensive deserts. Some parts of this continental landmass were synchronously affected by pronounced tectonism and magmatism, which were responsible for reshaping the regional topography. In this context, the southwestern part of the Sanfranciscana Basin in central Brazil is a key area for understanding this particular basin occur in direct association with volcanic rocks of the Upper Cretaceous Mata da Corda Group. Here, we report evidence of synsedimentary magmatism in direct association with soft-sediment-deformation structures, including flame structures, load casts and pseudonodules, water-escape structures, convolute lamination, faults, breccias, and clastic dikes, developed exclusively in aeolian sandstone and siltstone facies. The deformation features are interpreted as indicative of liquefaction, fluidization, and brittle behavior of the loose to partially lithified, wet sandy-silty sediments. The Late Cretaceous aeolian sedimentation is contemporaneous with the uplift of the Paranaiba High and activities are considered to have triggered ductile to brittle deformation in the reported aeolian deposits.en
dc.description.affiliationUniv Fed Uberlandia, Inst Geog, LMG-746 Km 1, BR-38500000 Monte Carmelo, MG, Brazil
dc.description.affiliationUniv Estadual Paulista, Dept Geol, Inst Geociencias & Ciencias Exatas, Ave 24-A,Bela Vista 178, BR-13506900 Rio Claro, SP, Brazil
dc.description.affiliationUniv Fed Ouro Preto, Dept Geol, Escola Minas, BR-35400000 Ouro Preto, MG, Brazil
dc.description.affiliationUniv Fed ABC, Ctr Engn Modelagem & Ciencias Sociais Aplicadas, Ave Estados 5001, Santo Andre, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Geol, Inst Geociencias & Ciencias Exatas, Ave 24-A,Bela Vista 178, BR-13506900 Rio Claro, SP, Brazil
dc.format.extent1-19
dc.identifierhttp://dx.doi.org/10.2110/jsr.2021.143
dc.identifier.citationJournal of Sedimentary Research. Tulsa: Sepm-soc Sedimentary Geology, v. 93, n. 1, p. 1-19, 2023.
dc.identifier.doi10.2110/jsr.2021.143
dc.identifier.issn1527-1404
dc.identifier.urihttp://hdl.handle.net/11449/245575
dc.identifier.wosWOS:000918410200001
dc.language.isoeng
dc.publisherSepm-soc Sedimentary Geology
dc.relation.ispartofJournal Of Sedimentary Research
dc.sourceWeb of Science
dc.titleUPLIFTING MOUNTAINS AND SHAKING DESERTS: VOLCANO-TECTONIC EARTHQUAKES REVEALED BY SOFT-SEDIMENT-DEFORMATION STRUCTURES IN UPPER CRETACEOUS AEOLIAN DEPOSITSen
dc.typeArtigo
dcterms.rightsHolderSepm-soc Sedimentary Geology

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