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dc.contributor.authorPaz, Maximiliano-
dc.contributor.authorPonce, Juan J.-
dc.contributor.authorBuatois, Luís Alberto-
dc.contributor.authorMángano, María Gabriela-
dc.contributor.authorCarmona, Noelia Beatriz-
dc.contributor.authorPereira, Egberto-
dc.contributor.authorDesjardins, Patricio R.-
dc.date.accessioned2020-04-17T16:19:10Z-
dc.date.available2020-04-17T16:19:10Z-
dc.date.issued2019-06-
dc.identifier.citationPaz, Maximiliano., Ponce, Juan J., y et al (2019). Bottomset and foreset sedimentary processes in the mixed carbonate-siliciclastic Upper Jurassic-Lower Cretaceous Vaca Muerta Formation, Picún Leufú Area, Argentina. Elsevier; Sedimentary Geology; 389; 161-185es_ES
dc.identifier.issn0037-0738es_ES
dc.identifier.otherhttps://www.sciencedirect.com/science/article/abs/pii/S003707381930140X?via%3Dihub-
dc.identifier.urihttps://rid.unrn.edu.ar/jspui/handle/20.500.12049/4574-
dc.description.abstractThe Upper Jurassic-Lower Cretaceous Vaca Muerta Formation at the Picún Leufú area constitutes bottomset and foreset marine deposits comprising open bay, siliciclastic basin and mixed carbonate-siliciclastic shelf facies. Detailed sedimentological, ichnological and sequence stratigraphic analysis of six stratigraphic sections allows establishing two depositional sequences. Depositional Sequence 1 (DS1) begins with lowstand eolian deposits included in the Quebrada del Sapo Formation, and continues with thin, retrograding, transgressive open bay facies of the Vaca Muerta Formation encompassing coastal sand sheet and dune, marginal marine, bay margin and distal bay facies. Above the transgressive deposits, the regressive hemicycle of DS1 consists of bottomset deposits representing a siliciclastic basin facies association. Lobe and lobe fringe hyperpycnal flow sedimentation alternated with hemipelagic basinal deposition in an oxygen-deficient environment. A relative sea-level fall generated a sequence boundary, which coincides with an angular unconformity that marks the base of Depositional Sequence 2 (DS2). This sea-level fall triggered the formation of an extensive lowstand channel-fill and lobe complex at the base of the slope, followed by retrogradational lobe facies during the subsequent transgression. The regressive hemicycle of DS2 represents foreset mixed carbonate-siliciclastic shelf facies, forming a slope mud belt and slope sand bodies. Near the top, sedimentation in a foreset-topset transition resulted in the accumulation of bioturbated mixed slope and sandy shoal deposits. Sand bars and lagoonal facies occur on top of all sections and are truncated by a sequence boundary. The combined analysis provides insights into the sedimentary processes affecting bottomset and foreset deposition, underscoring the role of wave-influenced hyperpycnal flows, and the effect on organic matter dilution in one of the most important unconventional reservoirs from Argentina.es_ES
dc.format.extentp. 161–185es_ES
dc.format.mediumimpresoes_ES
dc.format.mediumdigitales_ES
dc.language.isoenes_ES
dc.publisherElsevieres_ES
dc.titleBottomset and foreset sedimentary processes in the mixed carbonate-siliciclastic Upper Jurassic-Lower Cretaceous Vaca Muerta Formation, Picún Leufú Area, Argentinaes_ES
dc.typeArticuloes_ES
dc.rights.licensehttps://creativecommons.org/licenses/by-nc-sa/4.0/es_ES
dc.description.filiationFil: Paz, Maximiliano. University of Saskatchewan, Department of Geological Sciences; Canadaes_ES
dc.description.filiationFil: Ponce, Juan J. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología; Argentinaes_ES
dc.description.filiationFil: Ponce, Juan J. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentinaes_ES
dc.description.filiationFil: Buatois, Luis A. University of Saskatchewan, Department of Geological Sciences; Canadaes_ES
dc.description.filiationFil: Mángano, Gabriela M. University of Saskatchewan, Department of Geological Sciences; Canadaes_ES
dc.description.filiationFil: Carmona, Noelia B. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología; Argentinaes_ES
dc.description.filiationFil: Carmona, Noelia B. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentinaes_ES
dc.description.filiationFil: Pereira, Egberto. Universidade do Estado do Rio de Janeiro. Faculdade de Geologia, Departamento de Estratigrafia e Paleontologia; Brasil.es_ES
dc.description.filiationFil: Desjardins, Patricio R. Shell Exploration and Production Company; USAes_ES
dc.subject.keywordWavees_ES
dc.subject.keywordInfluenced Hyperpycnal Flows Bioturbation Neuquén Basin Finees_ES
dc.subject.keywordGrained Systems Unconventional Reservoirses_ES
dc.type.versioninfo:eu-repo/semantics/acceptedVersiones_ES
dc.subject.materiaichnology, sedimentologyes_ES
dc.origin.lugarDesarrolloUniversidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geologíaes_ES
dc.relation.journalissue389es_ES
dc.description.reviewtruees_ES
dc.description.resumenThe Upper Jurassic-Lower Cretaceous Vaca Muerta Formation at the Picún Leufú area constitutes bottomset and foreset marine deposits comprising open bay, siliciclastic basin and mixed carbonate-siliciclastic shelf facies. Detailed sedimentological, ichnological and sequence stratigraphic analysis of six stratigraphic sections allows establishing two depositional sequences. Depositional Sequence 1 (DS1) begins with lowstand eolian deposits included in the Quebrada del Sapo Formation, and continues with thin, retrograding, transgressive open bay facies of the Vaca Muerta Formation encompassing coastal sand sheet and dune, marginal marine, bay margin and distal bay facies. Above the transgressive deposits, the regressive hemicycle of DS1 consists of bottomset deposits representing a siliciclastic basin facies association. Lobe and lobe fringe hyperpycnal flow sedimentation alternated with hemipelagic basinal deposition in an oxygen-deficient environment. A relative sea-level fall generated a sequence boundary, which coincides with an angular unconformity that marks the base of Depositional Sequence 2 (DS2). This sea-level fall triggered the formation of an extensive lowstand channel-fill and lobe complex at the base of the slope, followed by retrogradational lobe facies during the subsequent transgression. The regressive hemicycle of DS2 represents foreset mixed carbonate-siliciclastic shelf facies, forming a slope mud belt and slope sand bodies. Near the top, sedimentation in a foreset-topset transition resulted in the accumulation of bioturbated mixed slope and sandy shoal deposits. Sand bars and lagoonal facies occur on top of all sections and are truncated by a sequence boundary. The combined analysis provides insights into the sedimentary processes affecting bottomset and foreset deposition, underscoring the role of wave-influenced hyperpycnal flows, and the effect on organic matter dilution in one of the most important unconventional reservoirs from Argentina.es_ES
dc.identifier.doihttps://doi.org/10.1016/j.sedgeo.2019.06.007-
dc.relation.journalTitleSedimentary Geologyes_ES
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