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dc.contributor.authorFoix, Nicolás-
dc.contributor.authorOcampo, Sebastián-
dc.contributor.authorParedes, José-
dc.contributor.authorAllard, José-
dc.contributor.authorGiacosa, Raúl-
dc.contributor.authorGonzález, Pablo Diego-
dc.contributor.authorOlazábal, Sabrina-
dc.date.accessioned2024-05-13T14:10:58Z-
dc.date.available2024-05-13T14:10:58Z-
dc.date.issued2023-07-08-
dc.identifier.citationFoix, N., Ocampo, S., Paredes, J,., Allard, J., Giacosa, R., González, P.D., Olazábal, S. 2023. Maastrichtian-Danian Northpatagonian rocky shore, Argentina. Sedimentary Geology 454, 106463.es_ES
dc.identifier.issn0037-0738es_ES
dc.identifier.urihttp://rid.unrn.edu.ar/handle/20.500.12049/11585-
dc.description.abstractThe Atlantic Maastrichtian-Danian (K/P) transgression over northern-central extra-Andean Patagonia (Argentina) covered both Mesozoic sedimentary basins and the Northpatagonian Massif (NPM). The flooding of the NPM resulted in a regional unconformity/nonconformity (70.000 km2) between the pre-Cretaceous basement (Jurassic Chon Aike Silicic Large Igneous Province and igneous-metamorphic Paleozoic basement) and the K/P marine transgressive record, constituting the widest known ancient rocky shore of South America (Northpatagonian rocky shore). The transgressive stratigraphic record over the basement is mainly composed of isolated carbonate bioclastic deposits up to 40 m thick with predomination of bivalves, echinoderms, bryozoan, coralline red algae, and foraminifera skeletal remains; we interpreted these bioclastic near-shore deposits as rocky shore associations. The hard substrate, irregular seacoast and low accommodation space over the NPM provided a preferential ecological niche for encrusting biota (i.e., Oyster reefs) during the K/P epicontinental flooding. The colonization of “engineer ecosystems” organisms over thousands of square kilometers probably enhanced the coastal biodiversity. The K/P Northpatagonian rocky shore favored the conformation of a short-lived, transgressive, cool-water carbonate factory in the south-eastern extreme of South America.es_ES
dc.format.extentp. 106463es_ES
dc.language.isoenes_ES
dc.publisherElsevieres_ES
dc.relation.urihttps://www.sciencedirect.com/science/article/abs/pii/S0037073823001355es_ES
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/-
dc.titleMaastrichtian-Danian Northpatagonian rocky shore, Argentina.es_ES
dc.typeArticuloes_ES
dc.rights.licenseCreative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)-
dc.description.filiationFoix, Nicolás. Departamento de Geología, FCNyCS-UNPSJB. Chubut; Argentina.es_ES
dc.description.filiationOcampo, Sebastián- Departamento de Geología, FCNyCS-UNPSJB. Chubut; Argentina.es_ES
dc.description.filiationParedes, José. Departamento de Geología, FCNyCS-UNPSJB. Chubut; Argentina.es_ES
dc.description.filiationAllard, José. Departamento de Geología, FCNyCS-UNPSJB. Chubut; Argentina.es_ES
dc.description.filiationGiacosa, Raúl. Centro SEGEMAR General Roca. Río Negro; Argentina.es_ES
dc.description.filiationGonzález, Pablo Diego. Centro SEGEMAR General Roca. Río Negro; Argentina.es_ES
dc.description.filiationOlazábal, Sabrina. Departamento de Geología, FCNyCS-UNPSJB. Chubut; Argentina.es_ES
dc.subject.keywordrocky-shorees_ES
dc.subject.keywordDanianes_ES
dc.subject.keywordMaastrichtianes_ES
dc.subject.keywordmarine ingressiones_ES
dc.subject.keywordAtlantices_ES
dc.subject.keywordPatagoniaes_ES
dc.type.versioninfo:eu-repo/semantics/publishedVersiones_ES
dc.subject.materiaCiencias Exactas y Naturaleses_ES
dc.origin.lugarDesarrolloDepartamento de Geología, FCNyCS-UNPSJBes_ES
dc.relation.journalissue454es_ES
dc.description.reviewtruees_ES
dc.description.resumenThe Atlantic Maastrichtian-Danian (K/P) transgression over northern-central extra-Andean Patagonia (Argentina) covered both Mesozoic sedimentary basins and the Northpatagonian Massif (NPM). The flooding of the NPM resulted in a regional unconformity/nonconformity (70.000 km2) between the pre-Cretaceous basement (Jurassic Chon Aike Silicic Large Igneous Province and igneous-metamorphic Paleozoic basement) and the K/P marine transgressive record, constituting the widest known ancient rocky shore of South America (Northpatagonian rocky shore). The transgressive stratigraphic record over the basement is mainly composed of isolated carbonate bioclastic deposits up to 40 m thick with predomination of bivalves, echinoderms, bryozoan, coralline red algae, and foraminifera skeletal remains; we interpreted these bioclastic near-shore deposits as rocky shore associations. The hard substrate, irregular seacoast and low accommodation space over the NPM provided a preferential ecological niche for encrusting biota (i.e., Oyster reefs) during the K/P epicontinental flooding. The colonization of “engineer ecosystems” organisms over thousands of square kilometers probably enhanced the coastal biodiversity. The K/P Northpatagonian rocky shore favored the conformation of a short-lived, transgressive, cool-water carbonate factory in the south-eastern extreme of South America.es_ES
dc.identifier.doihttps://doi.org/10.1016/j.sedgeo.2023.106463-
dc.relation.journalTitleSedimentary Geologyes_ES
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