Carbon isotopic signature and organic matter composition of cenomanian high-latitude paleosols of Southern Patagonia

Autores
Varela, Augusto Nicolás; Raigemborn, María Sol; Santamarina, Patricio Emmanuel; Lizzoli, Sabrina; Adatte, Thierry; Heimhofer, Ulrich
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Cenomanian Mata Amarilla Formation (MAF) in southern Patagonia (⁓55° S paleolatitude, Austral-Magallanes Basin, Argentina) is composed mainly of stacked fluvial deposits with intercalated paleosols, which document Cenomanian environments at high-paleolatitudes in the Southern Hemisphere. We performed a multiproxy study of the paleosols and sediments of the MAF in order to (1) understand the composition of the soil-and sediment-derived organic matter (OM), (2) apply carbon isotope stratigraphy as a tool to correlate patterns obtained from the MAF with existing marine and non-marine δ13Corg records worldwide, and (3) investigate the relationship between variations in spore-pollen assemblages of the MAF and the climatic conditions prevailing in the Cenomanian Southern Hemisphere. An integrated dataset was generated, including total organic carbon content, Rock-Eval pyrolysis data, stable isotope (δ13Corg) composition, and palynological data, combined with published paleosol-derived mean annual temperatures and mean annual precipitations. The results indicated that the OM preserved in the MAF paleosols allowed its use as a chemostratigraphic tool. The MAF δ13Corg curve showed the rather stable pattern characteristic for the Early to Late Cenomanian interval. The absence of the major positive carbon isotope excursion associated with oceanic anoxic event 2 provided an upper limit for the stratigraphic range of the MAF. The palynological data suggested the development of fern prairies during warmer and moister periods at the expense of the background gymnosperm-dominated forests. Overall, the multiproxy record provided new insights into the long-term environmental conditions during the Cenomanian in the high latitudes of the Southern Hemisphere.
Fil: Varela, Augusto Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. YPF - Tecnología; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentina
Fil: Raigemborn, María Sol. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina
Fil: Santamarina, Patricio Emmanuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
Fil: Lizzoli, Sabrina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina
Fil: Adatte, Thierry. Universite de Lausanne; Suiza
Fil: Heimhofer, Ulrich. Leibniz Universitat Hannover; Alemania
Materia
CARBON CYCLE
CARBON ISOTOPES
MID-CRETACEOUS
PALYNOLOGY
SOUTHERN GONDWANA
TERRESTRIAL DEPOSITS
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:11336/166276
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/166276
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Carbon isotopic signature and organic matter composition of cenomanian high-latitude paleosols of Southern PatagoniaVarela, Augusto NicolásRaigemborn, María SolSantamarina, Patricio EmmanuelLizzoli, SabrinaAdatte, ThierryHeimhofer, UlrichCARBON CYCLECARBON ISOTOPESMID-CRETACEOUSPALYNOLOGYSOUTHERN GONDWANATERRESTRIAL DEPOSITShttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The Cenomanian Mata Amarilla Formation (MAF) in southern Patagonia (⁓55° S paleolatitude, Austral-Magallanes Basin, Argentina) is composed mainly of stacked fluvial deposits with intercalated paleosols, which document Cenomanian environments at high-paleolatitudes in the Southern Hemisphere. We performed a multiproxy study of the paleosols and sediments of the MAF in order to (1) understand the composition of the soil-and sediment-derived organic matter (OM), (2) apply carbon isotope stratigraphy as a tool to correlate patterns obtained from the MAF with existing marine and non-marine δ13Corg records worldwide, and (3) investigate the relationship between variations in spore-pollen assemblages of the MAF and the climatic conditions prevailing in the Cenomanian Southern Hemisphere. An integrated dataset was generated, including total organic carbon content, Rock-Eval pyrolysis data, stable isotope (δ13Corg) composition, and palynological data, combined with published paleosol-derived mean annual temperatures and mean annual precipitations. The results indicated that the OM preserved in the MAF paleosols allowed its use as a chemostratigraphic tool. The MAF δ13Corg curve showed the rather stable pattern characteristic for the Early to Late Cenomanian interval. The absence of the major positive carbon isotope excursion associated with oceanic anoxic event 2 provided an upper limit for the stratigraphic range of the MAF. The palynological data suggested the development of fern prairies during warmer and moister periods at the expense of the background gymnosperm-dominated forests. Overall, the multiproxy record provided new insights into the long-term environmental conditions during the Cenomanian in the high latitudes of the Southern Hemisphere.Fil: Varela, Augusto Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. YPF - Tecnología; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; ArgentinaFil: Raigemborn, María Sol. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; ArgentinaFil: Santamarina, Patricio Emmanuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; ArgentinaFil: Lizzoli, Sabrina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; ArgentinaFil: Adatte, Thierry. Universite de Lausanne; SuizaFil: Heimhofer, Ulrich. Leibniz Universitat Hannover; AlemaniaMultidisciplinary Digital Publishing Institute2021-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/166276Varela, Augusto Nicolás; Raigemborn, María Sol; Santamarina, Patricio Emmanuel; Lizzoli, Sabrina; Adatte, Thierry; et al.; Carbon isotopic signature and organic matter composition of cenomanian high-latitude paleosols of Southern Patagonia; Multidisciplinary Digital Publishing Institute; Geosciences; 11; 9; 9-2021; 1-212076-3263CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2076-3263/11/9/378info:eu-repo/semantics/altIdentifier/doi/10.3390/geosciences11090378info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:39:57Zoai:ri.conicet.gov.ar:11336/166276instacron: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:34982025-09-29 10:39:57.808CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Carbon isotopic signature and organic matter composition of cenomanian high-latitude paleosols of Southern Patagonia
title Carbon isotopic signature and organic matter composition of cenomanian high-latitude paleosols of Southern Patagonia
spellingShingle Carbon isotopic signature and organic matter composition of cenomanian high-latitude paleosols of Southern Patagonia
Varela, Augusto Nicolás
CARBON CYCLE
CARBON ISOTOPES
MID-CRETACEOUS
PALYNOLOGY
SOUTHERN GONDWANA
TERRESTRIAL DEPOSITS
title_short Carbon isotopic signature and organic matter composition of cenomanian high-latitude paleosols of Southern Patagonia
title_full Carbon isotopic signature and organic matter composition of cenomanian high-latitude paleosols of Southern Patagonia
title_fullStr Carbon isotopic signature and organic matter composition of cenomanian high-latitude paleosols of Southern Patagonia
title_full_unstemmed Carbon isotopic signature and organic matter composition of cenomanian high-latitude paleosols of Southern Patagonia
title_sort Carbon isotopic signature and organic matter composition of cenomanian high-latitude paleosols of Southern Patagonia
dc.creator.none.fl_str_mv Varela, Augusto Nicolás
Raigemborn, María Sol
Santamarina, Patricio Emmanuel
Lizzoli, Sabrina
Adatte, Thierry
Heimhofer, Ulrich
author Varela, Augusto Nicolás
author_facet Varela, Augusto Nicolás
Raigemborn, María Sol
Santamarina, Patricio Emmanuel
Lizzoli, Sabrina
Adatte, Thierry
Heimhofer, Ulrich
author_role author
author2 Raigemborn, María Sol
Santamarina, Patricio Emmanuel
Lizzoli, Sabrina
Adatte, Thierry
Heimhofer, Ulrich
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv CARBON CYCLE
CARBON ISOTOPES
MID-CRETACEOUS
PALYNOLOGY
SOUTHERN GONDWANA
TERRESTRIAL DEPOSITS
topic CARBON CYCLE
CARBON ISOTOPES
MID-CRETACEOUS
PALYNOLOGY
SOUTHERN GONDWANA
TERRESTRIAL DEPOSITS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The Cenomanian Mata Amarilla Formation (MAF) in southern Patagonia (⁓55° S paleolatitude, Austral-Magallanes Basin, Argentina) is composed mainly of stacked fluvial deposits with intercalated paleosols, which document Cenomanian environments at high-paleolatitudes in the Southern Hemisphere. We performed a multiproxy study of the paleosols and sediments of the MAF in order to (1) understand the composition of the soil-and sediment-derived organic matter (OM), (2) apply carbon isotope stratigraphy as a tool to correlate patterns obtained from the MAF with existing marine and non-marine δ13Corg records worldwide, and (3) investigate the relationship between variations in spore-pollen assemblages of the MAF and the climatic conditions prevailing in the Cenomanian Southern Hemisphere. An integrated dataset was generated, including total organic carbon content, Rock-Eval pyrolysis data, stable isotope (δ13Corg) composition, and palynological data, combined with published paleosol-derived mean annual temperatures and mean annual precipitations. The results indicated that the OM preserved in the MAF paleosols allowed its use as a chemostratigraphic tool. The MAF δ13Corg curve showed the rather stable pattern characteristic for the Early to Late Cenomanian interval. The absence of the major positive carbon isotope excursion associated with oceanic anoxic event 2 provided an upper limit for the stratigraphic range of the MAF. The palynological data suggested the development of fern prairies during warmer and moister periods at the expense of the background gymnosperm-dominated forests. Overall, the multiproxy record provided new insights into the long-term environmental conditions during the Cenomanian in the high latitudes of the Southern Hemisphere.
Fil: Varela, Augusto Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. YPF - Tecnología; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentina
Fil: Raigemborn, María Sol. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina
Fil: Santamarina, Patricio Emmanuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
Fil: Lizzoli, Sabrina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina
Fil: Adatte, Thierry. Universite de Lausanne; Suiza
Fil: Heimhofer, Ulrich. Leibniz Universitat Hannover; Alemania
description The Cenomanian Mata Amarilla Formation (MAF) in southern Patagonia (⁓55° S paleolatitude, Austral-Magallanes Basin, Argentina) is composed mainly of stacked fluvial deposits with intercalated paleosols, which document Cenomanian environments at high-paleolatitudes in the Southern Hemisphere. We performed a multiproxy study of the paleosols and sediments of the MAF in order to (1) understand the composition of the soil-and sediment-derived organic matter (OM), (2) apply carbon isotope stratigraphy as a tool to correlate patterns obtained from the MAF with existing marine and non-marine δ13Corg records worldwide, and (3) investigate the relationship between variations in spore-pollen assemblages of the MAF and the climatic conditions prevailing in the Cenomanian Southern Hemisphere. An integrated dataset was generated, including total organic carbon content, Rock-Eval pyrolysis data, stable isotope (δ13Corg) composition, and palynological data, combined with published paleosol-derived mean annual temperatures and mean annual precipitations. The results indicated that the OM preserved in the MAF paleosols allowed its use as a chemostratigraphic tool. The MAF δ13Corg curve showed the rather stable pattern characteristic for the Early to Late Cenomanian interval. The absence of the major positive carbon isotope excursion associated with oceanic anoxic event 2 provided an upper limit for the stratigraphic range of the MAF. The palynological data suggested the development of fern prairies during warmer and moister periods at the expense of the background gymnosperm-dominated forests. Overall, the multiproxy record provided new insights into the long-term environmental conditions during the Cenomanian in the high latitudes of the Southern Hemisphere.
publishDate 2021
dc.date.none.fl_str_mv 2021-09
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/11336/166276
Varela, Augusto Nicolás; Raigemborn, María Sol; Santamarina, Patricio Emmanuel; Lizzoli, Sabrina; Adatte, Thierry; et al.; Carbon isotopic signature and organic matter composition of cenomanian high-latitude paleosols of Southern Patagonia; Multidisciplinary Digital Publishing Institute; Geosciences; 11; 9; 9-2021; 1-21
2076-3263
CONICET Digital
CONICET
url http://hdl.handle.net/11336/166276
identifier_str_mv Varela, Augusto Nicolás; Raigemborn, María Sol; Santamarina, Patricio Emmanuel; Lizzoli, Sabrina; Adatte, Thierry; et al.; Carbon isotopic signature and organic matter composition of cenomanian high-latitude paleosols of Southern Patagonia; Multidisciplinary Digital Publishing Institute; Geosciences; 11; 9; 9-2021; 1-21
2076-3263
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2076-3263/11/9/378
info:eu-repo/semantics/altIdentifier/doi/10.3390/geosciences11090378
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
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
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 13.070432

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