Life and death in the Chicxulub impact crater: A record of the Paleocene-Eocene Thermal Maximum
- Autores
- Smith, Vann; Warny, Sophie; Grice, Kliti; Schaefer, Bettina; Whalen, Michael T.; Vellekoop, Johan; Chenot, Elise; Gulick, Sean P. S.; Arenillas, Ignacio; Arz, Jose A.; Bauersachs, Thorsten; Bralower, Timothy; Demory, Francois; Gattacceca, Jerome; Jones, Heather; Lofi, Johanna; Lowery, Christopher M.; Morgan, Joanna; Nuñez Otaño, Noelia Betiana; O'Keefe, Jennifer M. K.; O'Malley, Katherine; Rodríguez Tovar, Francisco J.; Schwark, Lorenz
- Año de publicación
- 2020
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Thermal stress on the biosphere during the extreme warmth of the Paleocene–Eocene Thermal Maximum (PETM) was most severe at low latitudes, with sea surface temperatures at some localities exceeding the 35 ∘C at which marine organisms experience heat stress. Relatively few equivalent terrestrial sections have been identified, and the response of land plants to this extreme heat is still poorly understood. Here, we present a new record of the PETM from the peak ring of the Chicxulub impact crater that has been identified based on nannofossil biostratigraphy, an acme of the dinoflagellate genus Apectodinium, and a negative carbon isotope excursion. Geochemical and microfossil proxies show that the PETM is marked by elevated TEXH86-based sea surface temperatures (SSTs) averaging ∼37.8 ∘C, an increase in terrestrial input and surface productivity, salinity stratification, and bottom water anoxia, with biomarkers for green and purple sulfur bacteria indicative of photic zone euxinia in the early part of the event. Pollen and plants spores in this core provide the first PETM floral assemblage described from Mexico, Central America, and the northern Caribbean. The source area was a diverse coastal shrubby tropical forest with a remarkably high abundance of fungal spores, indicating humid conditions. Thus, while seafloor anoxia devastated the benthic marine biota and dinoflagellate assemblages were heat-stressed, the terrestrial plant ecosystem thrived.
Fil: Smith, Vann. State University of Louisiana; Estados Unidos
Fil: Warny, Sophie. State University of Louisiana; Estados Unidos
Fil: Grice, Kliti. Curtin University; Australia
Fil: Schaefer, Bettina. Curtin University; Australia
Fil: Whalen, Michael T.. University of Alaska; Estados Unidos
Fil: Vellekoop, Johan. Katholikie Universiteit Leuven; Bélgica. Vrije Unviversiteit Brussel; Bélgica
Fil: Chenot, Elise. Institut Polytechnique Lasalle Beauvais; Francia
Fil: Gulick, Sean P. S.. University of Texas at Austin; Estados Unidos
Fil: Arenillas, Ignacio. Universidad de Zaragoza; España
Fil: Arz, Jose A.. Universidad de Zaragoza; España
Fil: Bauersachs, Thorsten. Christian Albrechts Universitat Zu Kiel; Alemania
Fil: Bralower, Timothy. State University of Pennsylvania; Estados Unidos
Fil: Demory, Francois. Aix Marseille Université; Francia. Centre National de la Recherche Scientifique; Francia
Fil: Gattacceca, Jerome. Aix Marseille Université; Francia. Centre National de la Recherche Scientifique; Francia
Fil: Jones, Heather. State University of Pennsylvania; Estados Unidos
Fil: Lofi, Johanna. l'Université Montpellier; Francia. Centre National de la Recherche Scientifique; Francia
Fil: Lowery, Christopher M.. University of Texas at Austin; Estados Unidos
Fil: Morgan, Joanna. Imperial College London; Reino Unido
Fil: Nuñez Otaño, Noelia Betiana. Universidad Autónoma de Entre Ríos. Facultad de Ciencia y Tecnología. Laboratorio de Arqueología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina
Fil: O'Keefe, Jennifer M. K.. Morehead State University; Estados Unidos
Fil: O'Malley, Katherine. University of Alaska; Estados Unidos
Fil: Rodríguez Tovar, Francisco J.. Universidad de Granada; España
Fil: Schwark, Lorenz. Curtin University; Australia. Christian Albrechts Universitat Zu Kiel; Alemania - Materia
-
Paleocene-Eocene Thermal Maximun
PETM
Fossil record
Paleoenvironment - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by/2.5/ar/
- Repositorio
.jpg)
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/153660
Ver los metadatos del registro completo
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Life and death in the Chicxulub impact crater: A record of the Paleocene-Eocene Thermal MaximumSmith, VannWarny, SophieGrice, KlitiSchaefer, BettinaWhalen, Michael T.Vellekoop, JohanChenot, EliseGulick, Sean P. S.Arenillas, IgnacioArz, Jose A.Bauersachs, ThorstenBralower, TimothyDemory, FrancoisGattacceca, JeromeJones, HeatherLofi, JohannaLowery, Christopher M.Morgan, JoannaNuñez Otaño, Noelia BetianaO'Keefe, Jennifer M. K.O'Malley, KatherineRodríguez Tovar, Francisco J.Schwark, LorenzPaleocene-Eocene Thermal MaximunPETMFossil recordPaleoenvironmenthttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Thermal stress on the biosphere during the extreme warmth of the Paleocene–Eocene Thermal Maximum (PETM) was most severe at low latitudes, with sea surface temperatures at some localities exceeding the 35 ∘C at which marine organisms experience heat stress. Relatively few equivalent terrestrial sections have been identified, and the response of land plants to this extreme heat is still poorly understood. Here, we present a new record of the PETM from the peak ring of the Chicxulub impact crater that has been identified based on nannofossil biostratigraphy, an acme of the dinoflagellate genus Apectodinium, and a negative carbon isotope excursion. Geochemical and microfossil proxies show that the PETM is marked by elevated TEXH86-based sea surface temperatures (SSTs) averaging ∼37.8 ∘C, an increase in terrestrial input and surface productivity, salinity stratification, and bottom water anoxia, with biomarkers for green and purple sulfur bacteria indicative of photic zone euxinia in the early part of the event. Pollen and plants spores in this core provide the first PETM floral assemblage described from Mexico, Central America, and the northern Caribbean. The source area was a diverse coastal shrubby tropical forest with a remarkably high abundance of fungal spores, indicating humid conditions. Thus, while seafloor anoxia devastated the benthic marine biota and dinoflagellate assemblages were heat-stressed, the terrestrial plant ecosystem thrived.Fil: Smith, Vann. State University of Louisiana; Estados UnidosFil: Warny, Sophie. State University of Louisiana; Estados UnidosFil: Grice, Kliti. Curtin University; AustraliaFil: Schaefer, Bettina. Curtin University; AustraliaFil: Whalen, Michael T.. University of Alaska; Estados UnidosFil: Vellekoop, Johan. Katholikie Universiteit Leuven; Bélgica. Vrije Unviversiteit Brussel; BélgicaFil: Chenot, Elise. Institut Polytechnique Lasalle Beauvais; FranciaFil: Gulick, Sean P. S.. University of Texas at Austin; Estados UnidosFil: Arenillas, Ignacio. Universidad de Zaragoza; EspañaFil: Arz, Jose A.. Universidad de Zaragoza; EspañaFil: Bauersachs, Thorsten. Christian Albrechts Universitat Zu Kiel; AlemaniaFil: Bralower, Timothy. State University of Pennsylvania; Estados UnidosFil: Demory, Francois. Aix Marseille Université; Francia. Centre National de la Recherche Scientifique; FranciaFil: Gattacceca, Jerome. Aix Marseille Université; Francia. Centre National de la Recherche Scientifique; FranciaFil: Jones, Heather. State University of Pennsylvania; Estados UnidosFil: Lofi, Johanna. l'Université Montpellier; Francia. Centre National de la Recherche Scientifique; FranciaFil: Lowery, Christopher M.. University of Texas at Austin; Estados UnidosFil: Morgan, Joanna. Imperial College London; Reino UnidoFil: Nuñez Otaño, Noelia Betiana. Universidad Autónoma de Entre Ríos. Facultad de Ciencia y Tecnología. Laboratorio de Arqueología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; ArgentinaFil: O'Keefe, Jennifer M. K.. Morehead State University; Estados UnidosFil: O'Malley, Katherine. University of Alaska; Estados UnidosFil: Rodríguez Tovar, Francisco J.. Universidad de Granada; EspañaFil: Schwark, Lorenz. Curtin University; Australia. Christian Albrechts Universitat Zu Kiel; AlemaniaCopernicus Publications2020-10-19info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/153660Smith, Vann; Warny, Sophie; Grice, Kliti; Schaefer, Bettina; Whalen, Michael T.; et al.; Life and death in the Chicxulub impact crater: A record of the Paleocene-Eocene Thermal Maximum; Copernicus Publications; Climate of the Past; 16; 5; 19-10-2020; 1889-18991814-93241814-9332CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://cp.copernicus.org/articles/16/1889/2020/info:eu-repo/semantics/altIdentifier/doi/10.5194/cp-16-1889-2020info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:46:30Zoai:ri.conicet.gov.ar:11336/153660instacron: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:34982025-09-03 09:46:30.721CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
| dc.title.none.fl_str_mv |
Life and death in the Chicxulub impact crater: A record of the Paleocene-Eocene Thermal Maximum |
| title |
Life and death in the Chicxulub impact crater: A record of the Paleocene-Eocene Thermal Maximum |
| spellingShingle |
Life and death in the Chicxulub impact crater: A record of the Paleocene-Eocene Thermal Maximum Smith, Vann Paleocene-Eocene Thermal Maximun PETM Fossil record Paleoenvironment |
| title_short |
Life and death in the Chicxulub impact crater: A record of the Paleocene-Eocene Thermal Maximum |
| title_full |
Life and death in the Chicxulub impact crater: A record of the Paleocene-Eocene Thermal Maximum |
| title_fullStr |
Life and death in the Chicxulub impact crater: A record of the Paleocene-Eocene Thermal Maximum |
| title_full_unstemmed |
Life and death in the Chicxulub impact crater: A record of the Paleocene-Eocene Thermal Maximum |
| title_sort |
Life and death in the Chicxulub impact crater: A record of the Paleocene-Eocene Thermal Maximum |
| dc.creator.none.fl_str_mv |
Smith, Vann Warny, Sophie Grice, Kliti Schaefer, Bettina Whalen, Michael T. Vellekoop, Johan Chenot, Elise Gulick, Sean P. S. Arenillas, Ignacio Arz, Jose A. Bauersachs, Thorsten Bralower, Timothy Demory, Francois Gattacceca, Jerome Jones, Heather Lofi, Johanna Lowery, Christopher M. Morgan, Joanna Nuñez Otaño, Noelia Betiana O'Keefe, Jennifer M. K. O'Malley, Katherine Rodríguez Tovar, Francisco J. Schwark, Lorenz |
| author |
Smith, Vann |
| author_facet |
Smith, Vann Warny, Sophie Grice, Kliti Schaefer, Bettina Whalen, Michael T. Vellekoop, Johan Chenot, Elise Gulick, Sean P. S. Arenillas, Ignacio Arz, Jose A. Bauersachs, Thorsten Bralower, Timothy Demory, Francois Gattacceca, Jerome Jones, Heather Lofi, Johanna Lowery, Christopher M. Morgan, Joanna Nuñez Otaño, Noelia Betiana O'Keefe, Jennifer M. K. O'Malley, Katherine Rodríguez Tovar, Francisco J. Schwark, Lorenz |
| author_role |
author |
| author2 |
Warny, Sophie Grice, Kliti Schaefer, Bettina Whalen, Michael T. Vellekoop, Johan Chenot, Elise Gulick, Sean P. S. Arenillas, Ignacio Arz, Jose A. Bauersachs, Thorsten Bralower, Timothy Demory, Francois Gattacceca, Jerome Jones, Heather Lofi, Johanna Lowery, Christopher M. Morgan, Joanna Nuñez Otaño, Noelia Betiana O'Keefe, Jennifer M. K. O'Malley, Katherine Rodríguez Tovar, Francisco J. Schwark, Lorenz |
| author2_role |
author author author author author author author author author author author author author author author author author author author author author author |
| dc.subject.none.fl_str_mv |
Paleocene-Eocene Thermal Maximun PETM Fossil record Paleoenvironment |
| topic |
Paleocene-Eocene Thermal Maximun PETM Fossil record Paleoenvironment |
| purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
| dc.description.none.fl_txt_mv |
Thermal stress on the biosphere during the extreme warmth of the Paleocene–Eocene Thermal Maximum (PETM) was most severe at low latitudes, with sea surface temperatures at some localities exceeding the 35 ∘C at which marine organisms experience heat stress. Relatively few equivalent terrestrial sections have been identified, and the response of land plants to this extreme heat is still poorly understood. Here, we present a new record of the PETM from the peak ring of the Chicxulub impact crater that has been identified based on nannofossil biostratigraphy, an acme of the dinoflagellate genus Apectodinium, and a negative carbon isotope excursion. Geochemical and microfossil proxies show that the PETM is marked by elevated TEXH86-based sea surface temperatures (SSTs) averaging ∼37.8 ∘C, an increase in terrestrial input and surface productivity, salinity stratification, and bottom water anoxia, with biomarkers for green and purple sulfur bacteria indicative of photic zone euxinia in the early part of the event. Pollen and plants spores in this core provide the first PETM floral assemblage described from Mexico, Central America, and the northern Caribbean. The source area was a diverse coastal shrubby tropical forest with a remarkably high abundance of fungal spores, indicating humid conditions. Thus, while seafloor anoxia devastated the benthic marine biota and dinoflagellate assemblages were heat-stressed, the terrestrial plant ecosystem thrived. Fil: Smith, Vann. State University of Louisiana; Estados Unidos Fil: Warny, Sophie. State University of Louisiana; Estados Unidos Fil: Grice, Kliti. Curtin University; Australia Fil: Schaefer, Bettina. Curtin University; Australia Fil: Whalen, Michael T.. University of Alaska; Estados Unidos Fil: Vellekoop, Johan. Katholikie Universiteit Leuven; Bélgica. Vrije Unviversiteit Brussel; Bélgica Fil: Chenot, Elise. Institut Polytechnique Lasalle Beauvais; Francia Fil: Gulick, Sean P. S.. University of Texas at Austin; Estados Unidos Fil: Arenillas, Ignacio. Universidad de Zaragoza; España Fil: Arz, Jose A.. Universidad de Zaragoza; España Fil: Bauersachs, Thorsten. Christian Albrechts Universitat Zu Kiel; Alemania Fil: Bralower, Timothy. State University of Pennsylvania; Estados Unidos Fil: Demory, Francois. Aix Marseille Université; Francia. Centre National de la Recherche Scientifique; Francia Fil: Gattacceca, Jerome. Aix Marseille Université; Francia. Centre National de la Recherche Scientifique; Francia Fil: Jones, Heather. State University of Pennsylvania; Estados Unidos Fil: Lofi, Johanna. l'Université Montpellier; Francia. Centre National de la Recherche Scientifique; Francia Fil: Lowery, Christopher M.. University of Texas at Austin; Estados Unidos Fil: Morgan, Joanna. Imperial College London; Reino Unido Fil: Nuñez Otaño, Noelia Betiana. Universidad Autónoma de Entre Ríos. Facultad de Ciencia y Tecnología. Laboratorio de Arqueología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina Fil: O'Keefe, Jennifer M. K.. Morehead State University; Estados Unidos Fil: O'Malley, Katherine. University of Alaska; Estados Unidos Fil: Rodríguez Tovar, Francisco J.. Universidad de Granada; España Fil: Schwark, Lorenz. Curtin University; Australia. Christian Albrechts Universitat Zu Kiel; Alemania |
| description |
Thermal stress on the biosphere during the extreme warmth of the Paleocene–Eocene Thermal Maximum (PETM) was most severe at low latitudes, with sea surface temperatures at some localities exceeding the 35 ∘C at which marine organisms experience heat stress. Relatively few equivalent terrestrial sections have been identified, and the response of land plants to this extreme heat is still poorly understood. Here, we present a new record of the PETM from the peak ring of the Chicxulub impact crater that has been identified based on nannofossil biostratigraphy, an acme of the dinoflagellate genus Apectodinium, and a negative carbon isotope excursion. Geochemical and microfossil proxies show that the PETM is marked by elevated TEXH86-based sea surface temperatures (SSTs) averaging ∼37.8 ∘C, an increase in terrestrial input and surface productivity, salinity stratification, and bottom water anoxia, with biomarkers for green and purple sulfur bacteria indicative of photic zone euxinia in the early part of the event. Pollen and plants spores in this core provide the first PETM floral assemblage described from Mexico, Central America, and the northern Caribbean. The source area was a diverse coastal shrubby tropical forest with a remarkably high abundance of fungal spores, indicating humid conditions. Thus, while seafloor anoxia devastated the benthic marine biota and dinoflagellate assemblages were heat-stressed, the terrestrial plant ecosystem thrived. |
| publishDate |
2020 |
| dc.date.none.fl_str_mv |
2020-10-19 |
| 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/11336/153660 Smith, Vann; Warny, Sophie; Grice, Kliti; Schaefer, Bettina; Whalen, Michael T.; et al.; Life and death in the Chicxulub impact crater: A record of the Paleocene-Eocene Thermal Maximum; Copernicus Publications; Climate of the Past; 16; 5; 19-10-2020; 1889-1899 1814-9324 1814-9332 CONICET Digital CONICET |
| url |
http://hdl.handle.net/11336/153660 |
| identifier_str_mv |
Smith, Vann; Warny, Sophie; Grice, Kliti; Schaefer, Bettina; Whalen, Michael T.; et al.; Life and death in the Chicxulub impact crater: A record of the Paleocene-Eocene Thermal Maximum; Copernicus Publications; Climate of the Past; 16; 5; 19-10-2020; 1889-1899 1814-9324 1814-9332 CONICET Digital CONICET |
| dc.language.none.fl_str_mv |
eng |
| language |
eng |
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info:eu-repo/semantics/altIdentifier/url/https://cp.copernicus.org/articles/16/1889/2020/ info:eu-repo/semantics/altIdentifier/doi/10.5194/cp-16-1889-2020 |
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info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ |
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openAccess |
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https://creativecommons.org/licenses/by/2.5/ar/ |
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application/pdf application/pdf |
| dc.publisher.none.fl_str_mv |
Copernicus Publications |
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Copernicus Publications |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
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dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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13.13397 |