Latest Cretaceous climatic and environmental change in the South Atlantic region
Fil: Woelders, Lineke. Katholikie Universiteit Leuven; Bélgica
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| Lenguaje: | en_US |
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2017
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| Acceso en línea: | https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1002/2016PA003007 https://dx.doi.org/10.1002/2016PA003007 http://hdl.handle.net/11336/66879 https://rid.unrn.edu.ar/jspui/handle/20.500.12049/2607 |
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I65-R171-20.500.12049-2607 |
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I65-R171-20.500.12049-26072025-10-02T13:33:55Z application/pdf info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/4.0/ 2017-05-04 Fil: Woelders, Lineke. Katholikie Universiteit Leuven; Bélgica Fil: Vellekoop, Johan. Katholikie Universiteit Leuven; Bélgica Fil: Kroon, D. University of Edinburgh; Reino Unido Fil: Smit, Jan. University of Amsterdam; Países Bajos Fil: Casadio, Silvio A. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina Fil: Casadio, Silvio A. Instituto de Investigación en Paleobiología y Geología; Argentina. Fil: Casadio, Silvio A. Universidad Nacional de Río Negro; Argentina Fil: Pramparo, Mercedes B. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina Fil: Pramparo, Mercedes B. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza; Argentina Fil: Pramparo, Mercedes B. Universidad Nacional de Cuyo; Argentina Fil: Dinarès Turell, Jaume. Istituto Nazionale di Geofisica e Vulcanologia; Italia Fil: Peterse, Francien. University of Utrecht; Países Bajos Fil: Sluijs, Appy. University of Utrecht; Países Bajos Fil: Lenaerts, Jan. University of Utrecht; Países Bajos Fil: Speijer, Robert. Katholikie Universiteit Leuven; Bélgica Latest Cretaceous climatic and environmental change in the South Atlantic region Woelders, Lineke Vellekoop, Johan Kroon, D. Smit, Jan Casadio, Silvio Alberto Pramparo, Mercedes B. Dinarès Turell, Jaume Peterse, Francien Sluijs, Appy Lenaerts, Jan Speijer, Robert Meteorología y Ciencias Atmosféricas Maastrichtian Oxigen Isotopes Paleoclimate Paleoenvironment South Atlantic Meteorología y Ciencias Atmosféricas si Latest Maastrichtian climate change caused by Deccan volcanism has been invoked as a cause of mass extinction at the Cretaceous-Paleogene (K-Pg) boundary (~66.0 Ma). Yet late Maastrichtian climate and ecological changes are poorly documented, in particular on the Southern Hemisphere. Here we present upper Maastrichtian-lower Danian climate and biotic records from the Bajada del Jagüel (BJ) shelf site (Neuquén Basin, Argentina), employing the TEX86 paleothermometer, marine palynology (dinoflagellate cysts), and micropaleontology (foraminifera). These records are correlated to the astronomically tuned Ocean Drilling Program Site 1262 (Walvis Ridge). Collectively, we use these records to assess climatic and ecological effects of Deccan volcanism in the Southern Atlantic region. Both the TEX86-based sea surface temperature (SST) record at BJ and the bulk carbonate δ18O-based SST record of Site 1262 show a latest Maastrichtian warming of ~2.5–4°C, at 450 to 150 kyr before the K-Pg boundary, coinciding with the a large Deccan outpouring phase. Benthic foraminiferal and dinocyst assemblage changes indicate that this warming resulted in enhanced runoff and stratification of the water column, likely resulting from more humid climate conditions in the Neuquén Basin. These climate conditions could have been caused by an expanding and strengthening thermal low over the South American continent. Biotic changes in response to late Maastrichtian environmental changes are rather limited, when compared to the major turnovers observed at many K-Pg boundary sites worldwide. This suggests that environmental perturbations during the latest Maastrichtian warming event were less severe than those following the K-Pg boundary impact. Woelders, Lineke., Vellekoop, Johan., Kroon, D., Smit, Jan., Casadio, Silvio A., et al. (2017). Latest Cretaceous climatic and environmental change in the South Atlantic region. American Geophysical Union; Paleoceanography; 32; 5; pp. 466-483 0883-8305 1944-9186 https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1002/2016PA003007 https://dx.doi.org/10.1002/2016PA003007 http://hdl.handle.net/11336/66879 https://rid.unrn.edu.ar/jspui/handle/20.500.12049/2607 en_US 32 Paleoceanography |
| institution |
Universidad Nacional de Río Negro |
| institution_str |
I-65 |
| repository_str |
R-171 |
| collection |
Repositorio Institucional Digital de la Universidad Nacional de Río Negro (UNRN) |
| language |
en_US |
| orig_language_str_mv |
en_US |
| topic |
Meteorología y Ciencias Atmosféricas Maastrichtian Oxigen Isotopes Paleoclimate Paleoenvironment South Atlantic Meteorología y Ciencias Atmosféricas |
| spellingShingle |
Meteorología y Ciencias Atmosféricas Maastrichtian Oxigen Isotopes Paleoclimate Paleoenvironment South Atlantic Meteorología y Ciencias Atmosféricas Woelders, Lineke Vellekoop, Johan Kroon, D. Smit, Jan Casadio, Silvio Alberto Pramparo, Mercedes B. Dinarès Turell, Jaume Peterse, Francien Sluijs, Appy Lenaerts, Jan Speijer, Robert Latest Cretaceous climatic and environmental change in the South Atlantic region |
| topic_facet |
Meteorología y Ciencias Atmosféricas Maastrichtian Oxigen Isotopes Paleoclimate Paleoenvironment South Atlantic Meteorología y Ciencias Atmosféricas |
| description |
Fil: Woelders, Lineke. Katholikie Universiteit Leuven; Bélgica |
| author |
Woelders, Lineke Vellekoop, Johan Kroon, D. Smit, Jan Casadio, Silvio Alberto Pramparo, Mercedes B. Dinarès Turell, Jaume Peterse, Francien Sluijs, Appy Lenaerts, Jan Speijer, Robert |
| author_facet |
Woelders, Lineke Vellekoop, Johan Kroon, D. Smit, Jan Casadio, Silvio Alberto Pramparo, Mercedes B. Dinarès Turell, Jaume Peterse, Francien Sluijs, Appy Lenaerts, Jan Speijer, Robert |
| author_sort |
Woelders, Lineke |
| title |
Latest Cretaceous climatic and environmental change in the South Atlantic region |
| title_short |
Latest Cretaceous climatic and environmental change in the South Atlantic region |
| title_full |
Latest Cretaceous climatic and environmental change in the South Atlantic region |
| title_fullStr |
Latest Cretaceous climatic and environmental change in the South Atlantic region |
| title_full_unstemmed |
Latest Cretaceous climatic and environmental change in the South Atlantic region |
| title_sort |
latest cretaceous climatic and environmental change in the south atlantic region |
| publishDate |
2017 |
| url |
https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1002/2016PA003007 https://dx.doi.org/10.1002/2016PA003007 http://hdl.handle.net/11336/66879 https://rid.unrn.edu.ar/jspui/handle/20.500.12049/2607 |
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| _version_ |
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