Chronostratigraphy and radiocarbon age inversion in the Holocene regressive barrier of Paraná, southern Brazil

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorAngulo, Rodolfo José
dc.creatorde Souza, Maria Cristina
dc.creatorAssine, Mario Luis
dc.creatorPessenda, Luiz Carlos Ruiz
dc.creatorDisaró, Sibelle Trevisan
dc.date2014-05-27T11:23:36Z
dc.date2016-10-25T18:25:44Z
dc.date2014-05-27T11:23:36Z
dc.date2016-10-25T18:25:44Z
dc.date2008-07-07
dc.date.accessioned2017-04-06T01:31:30Z
dc.date.available2017-04-06T01:31:30Z
dc.identifierMarine Geology, v. 252, n. 3-4, p. 111-119, 2008.
dc.identifier0025-3227
dc.identifierhttp://hdl.handle.net/11449/70474
dc.identifierhttp://acervodigital.unesp.br/handle/11449/70474
dc.identifier10.1016/j.margeo.2008.03.006
dc.identifier2-s2.0-45049088246
dc.identifierhttp://dx.doi.org/10.1016/j.margeo.2008.03.006
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/891571
dc.descriptionTwenty-two 14C datings were performed at the central sector of the Paraná coast to define Holocene regressive barrier evolution. The barrier Pleistocene substratum was ascribed an age between 40 400 and 30 000 yr BP, but it can also represent the penultimate sea level highstand during marine isotope stage 5e. The Holocene barrier samples provided ages between 8542-8279 and 2987-2751 cal yr BP, and showed at least six age inversions that were related to age differences between in situ or low-distance transported shells or trunk fragments, and high-distance transported vegetal debris, wood fragments and organic matter samples. The regressive Holocene barrier age was 4402-4135 cal yr BP near the base, and 2987-2751 cal yr BP near the top. Most of the vegetal remains were transported by ebb tidal currents from the estuaries to the inner shelf below wave base level during the mid-Holocene highstand; they were transported onshore by storm waves and littoral currents during the sea level lowering after the sea level maximum, and were deposited mainly as middle shoreface swaley cross-stratification facies. © 2008.
dc.languageeng
dc.relationMarine Geology
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjecteastern Brazilian coast
dc.subjectHolocene regressive barrier
dc.subjectradiocarbon age inversion
dc.subjecttransported vegetal debris dating
dc.subjectChronostratigraphy
dc.subjectHolocene
dc.subjectRadiocarbon ages
dc.subjectchronostratigraphy
dc.subjectradiocarbon dating
dc.subjectsea level change
dc.subjecttidal current
dc.subjectBrazil
dc.subjectParana
dc.subjectSouth America
dc.titleChronostratigraphy and radiocarbon age inversion in the Holocene regressive barrier of Paraná, southern Brazil
dc.typeOtro


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