Higher than present global mean sea level recorded by an Early Pliocene intertidal unit in Patagonia (Argentina)

Autores
Rovere, Alessio; Pappalardo, Marta; Richiano, Sebastián Miguel; Aguirre, Marina Laura; Sandstrom, Michael R.; Hearty, Paul J.; Austermann, Jacqueline; Castellanos, Ignacio; Raymo, Maureen E.
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Reconstructions of global mean sea level from earlier warm periods in Earth?s history can helpconstrain future projections of sea level rise. Here we report on the sedimentology and age ofa geological unit in central Patagonia, Argentina, that we dated to the Early Pliocene(4.69?5.23 Ma, 2σ) with strontium isotope stratigraphy. The unit was interpreted as representativeof an intertidal environment, and its elevation was measured with differential GPS atca. 36m above present-day sea level. Considering modern tidal ranges, it was possible toconstrain paleo relative sea level within ±2.7m (1σ). We use glacial isostatic adjustmentmodels and estimates of vertical land movement to calculate that, when the Camaronesintertidal sequence was deposited, global mean sea level was 28.4 ± 11.7m (1σ) above present.This estimate matches those derived from analogous Early Pliocene sea level proxies inthe Mediterranean Sea and South Africa. Evidence from these three locations indicates thatEarly Pliocene sea level may have exceeded 20m above its present level. Such high globalmean sea level values imply an ice-free Greenland, a significant melting of West Antarctica,and a contribution of marine-based sectors of East Antarctica to global mean sea level.
Fil: Rovere, Alessio. Universitat Bremen; Alemania
Fil: Pappalardo, Marta. Universidad de Pisa; Italia
Fil: Richiano, Sebastián Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico de Geología y Paleontología; Argentina
Fil: Aguirre, Marina Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentina
Fil: Sandstrom, Michael R.. Columbia University; Estados Unidos
Fil: Hearty, Paul J.. University of Texas at Austin; Estados Unidos
Fil: Austermann, Jacqueline. Columbia University; Estados Unidos
Fil: Castellanos, Ignacio. Universidad Nacional de La Plata; Argentina
Fil: Raymo, Maureen E.. Columbia University; Estados Unidos
Materia
SEA-LEVEL INDICATORS
PLIOCENE
PATAGONIA
CLIMATE-CHANGE
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/128364
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/128364
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Higher than present global mean sea level recorded by an Early Pliocene intertidal unit in Patagonia (Argentina)Rovere, AlessioPappalardo, MartaRichiano, Sebastián MiguelAguirre, Marina LauraSandstrom, Michael R.Hearty, Paul J.Austermann, JacquelineCastellanos, IgnacioRaymo, Maureen E.SEA-LEVEL INDICATORSPLIOCENEPATAGONIACLIMATE-CHANGEhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Reconstructions of global mean sea level from earlier warm periods in Earth?s history can helpconstrain future projections of sea level rise. Here we report on the sedimentology and age ofa geological unit in central Patagonia, Argentina, that we dated to the Early Pliocene(4.69?5.23 Ma, 2σ) with strontium isotope stratigraphy. The unit was interpreted as representativeof an intertidal environment, and its elevation was measured with differential GPS atca. 36m above present-day sea level. Considering modern tidal ranges, it was possible toconstrain paleo relative sea level within ±2.7m (1σ). We use glacial isostatic adjustmentmodels and estimates of vertical land movement to calculate that, when the Camaronesintertidal sequence was deposited, global mean sea level was 28.4 ± 11.7m (1σ) above present.This estimate matches those derived from analogous Early Pliocene sea level proxies inthe Mediterranean Sea and South Africa. Evidence from these three locations indicates thatEarly Pliocene sea level may have exceeded 20m above its present level. Such high globalmean sea level values imply an ice-free Greenland, a significant melting of West Antarctica,and a contribution of marine-based sectors of East Antarctica to global mean sea level.Fil: Rovere, Alessio. Universitat Bremen; AlemaniaFil: Pappalardo, Marta. Universidad de Pisa; ItaliaFil: Richiano, Sebastián Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico de Geología y Paleontología; ArgentinaFil: Aguirre, Marina Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; ArgentinaFil: Sandstrom, Michael R.. Columbia University; Estados UnidosFil: Hearty, Paul J.. University of Texas at Austin; Estados UnidosFil: Austermann, Jacqueline. Columbia University; Estados UnidosFil: Castellanos, Ignacio. Universidad Nacional de La Plata; ArgentinaFil: Raymo, Maureen E.. Columbia University; Estados UnidosScience Press and Springer-Verlag GmbH2020-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/128364Rovere, Alessio; Pappalardo, Marta; Richiano, Sebastián Miguel; Aguirre, Marina Laura; Sandstrom, Michael R.; et al.; Higher than present global mean sea level recorded by an Early Pliocene intertidal unit in Patagonia (Argentina); Science Press and Springer-Verlag GmbH; Communications Earth & Environment; 1; 1; 12-20202662-4435CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.nature.com/articles/s43247-020-00067-6info:eu-repo/semantics/altIdentifier/doi/10.1038/s43247-020-00067-6info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T12:08:32Zoai:ri.conicet.gov.ar:11336/128364instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 12:08:33.024CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Higher than present global mean sea level recorded by an Early Pliocene intertidal unit in Patagonia (Argentina)
title Higher than present global mean sea level recorded by an Early Pliocene intertidal unit in Patagonia (Argentina)
spellingShingle Higher than present global mean sea level recorded by an Early Pliocene intertidal unit in Patagonia (Argentina)
Rovere, Alessio
SEA-LEVEL INDICATORS
PLIOCENE
PATAGONIA
CLIMATE-CHANGE
title_short Higher than present global mean sea level recorded by an Early Pliocene intertidal unit in Patagonia (Argentina)
title_full Higher than present global mean sea level recorded by an Early Pliocene intertidal unit in Patagonia (Argentina)
title_fullStr Higher than present global mean sea level recorded by an Early Pliocene intertidal unit in Patagonia (Argentina)
title_full_unstemmed Higher than present global mean sea level recorded by an Early Pliocene intertidal unit in Patagonia (Argentina)
title_sort Higher than present global mean sea level recorded by an Early Pliocene intertidal unit in Patagonia (Argentina)
dc.creator.none.fl_str_mv Rovere, Alessio
Pappalardo, Marta
Richiano, Sebastián Miguel
Aguirre, Marina Laura
Sandstrom, Michael R.
Hearty, Paul J.
Austermann, Jacqueline
Castellanos, Ignacio
Raymo, Maureen E.
author Rovere, Alessio
author_facet Rovere, Alessio
Pappalardo, Marta
Richiano, Sebastián Miguel
Aguirre, Marina Laura
Sandstrom, Michael R.
Hearty, Paul J.
Austermann, Jacqueline
Castellanos, Ignacio
Raymo, Maureen E.
author_role author
author2 Pappalardo, Marta
Richiano, Sebastián Miguel
Aguirre, Marina Laura
Sandstrom, Michael R.
Hearty, Paul J.
Austermann, Jacqueline
Castellanos, Ignacio
Raymo, Maureen E.
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv SEA-LEVEL INDICATORS
PLIOCENE
PATAGONIA
CLIMATE-CHANGE
topic SEA-LEVEL INDICATORS
PLIOCENE
PATAGONIA
CLIMATE-CHANGE
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Reconstructions of global mean sea level from earlier warm periods in Earth?s history can helpconstrain future projections of sea level rise. Here we report on the sedimentology and age ofa geological unit in central Patagonia, Argentina, that we dated to the Early Pliocene(4.69?5.23 Ma, 2σ) with strontium isotope stratigraphy. The unit was interpreted as representativeof an intertidal environment, and its elevation was measured with differential GPS atca. 36m above present-day sea level. Considering modern tidal ranges, it was possible toconstrain paleo relative sea level within ±2.7m (1σ). We use glacial isostatic adjustmentmodels and estimates of vertical land movement to calculate that, when the Camaronesintertidal sequence was deposited, global mean sea level was 28.4 ± 11.7m (1σ) above present.This estimate matches those derived from analogous Early Pliocene sea level proxies inthe Mediterranean Sea and South Africa. Evidence from these three locations indicates thatEarly Pliocene sea level may have exceeded 20m above its present level. Such high globalmean sea level values imply an ice-free Greenland, a significant melting of West Antarctica,and a contribution of marine-based sectors of East Antarctica to global mean sea level.
Fil: Rovere, Alessio. Universitat Bremen; Alemania
Fil: Pappalardo, Marta. Universidad de Pisa; Italia
Fil: Richiano, Sebastián Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico de Geología y Paleontología; Argentina
Fil: Aguirre, Marina Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentina
Fil: Sandstrom, Michael R.. Columbia University; Estados Unidos
Fil: Hearty, Paul J.. University of Texas at Austin; Estados Unidos
Fil: Austermann, Jacqueline. Columbia University; Estados Unidos
Fil: Castellanos, Ignacio. Universidad Nacional de La Plata; Argentina
Fil: Raymo, Maureen E.. Columbia University; Estados Unidos
description Reconstructions of global mean sea level from earlier warm periods in Earth?s history can helpconstrain future projections of sea level rise. Here we report on the sedimentology and age ofa geological unit in central Patagonia, Argentina, that we dated to the Early Pliocene(4.69?5.23 Ma, 2σ) with strontium isotope stratigraphy. The unit was interpreted as representativeof an intertidal environment, and its elevation was measured with differential GPS atca. 36m above present-day sea level. Considering modern tidal ranges, it was possible toconstrain paleo relative sea level within ±2.7m (1σ). We use glacial isostatic adjustmentmodels and estimates of vertical land movement to calculate that, when the Camaronesintertidal sequence was deposited, global mean sea level was 28.4 ± 11.7m (1σ) above present.This estimate matches those derived from analogous Early Pliocene sea level proxies inthe Mediterranean Sea and South Africa. Evidence from these three locations indicates thatEarly Pliocene sea level may have exceeded 20m above its present level. Such high globalmean sea level values imply an ice-free Greenland, a significant melting of West Antarctica,and a contribution of marine-based sectors of East Antarctica to global mean sea level.
publishDate 2020
dc.date.none.fl_str_mv 2020-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/128364
Rovere, Alessio; Pappalardo, Marta; Richiano, Sebastián Miguel; Aguirre, Marina Laura; Sandstrom, Michael R.; et al.; Higher than present global mean sea level recorded by an Early Pliocene intertidal unit in Patagonia (Argentina); Science Press and Springer-Verlag GmbH; Communications Earth & Environment; 1; 1; 12-2020
2662-4435
CONICET Digital
CONICET
url http://hdl.handle.net/11336/128364
identifier_str_mv Rovere, Alessio; Pappalardo, Marta; Richiano, Sebastián Miguel; Aguirre, Marina Laura; Sandstrom, Michael R.; et al.; Higher than present global mean sea level recorded by an Early Pliocene intertidal unit in Patagonia (Argentina); Science Press and Springer-Verlag GmbH; Communications Earth & Environment; 1; 1; 12-2020
2662-4435
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.nature.com/articles/s43247-020-00067-6
info:eu-repo/semantics/altIdentifier/doi/10.1038/s43247-020-00067-6
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Science Press and Springer-Verlag GmbH
publisher.none.fl_str_mv Science Press and Springer-Verlag GmbH
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.982451

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