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- Klages, J. P. (author)
Temperate rainforests near the South Pole during peak Cretaceous warmth
- Article/chapterEnglish2020
Publisher, publication year, extent ...
- 2020-04-01
- Springer Science and Business Media LLC,2020
Numbers
- LIBRIS-ID:oai:gup.ub.gu.se/294737
- https://gup.ub.gu.se/publication/294737URI
- https://doi.org/10.1038/s41586-020-2148-5DOI
Supplementary language notes
- Language:English
Part of subdatabase
- SwePubSwePub
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Notes
- The mid-Cretaceous period was one of the warmest intervals of the past 140millionyears1–5, driven by atmospheric carbon dioxide levels of around 1,000parts per million by volume6. In the near absence of proximal geological records from south of the Antarctic Circle, it is disputed whether polar ice could exist under such environmental conditions. Here we use a sedimentary sequence recovered from the West Antarctic shelf—the southernmost Cretaceous record reported so far—and show that a temperate lowland rainforest environment existed at a palaeolatitude of about 82°S during the Turonian–Santonian age (92 to 83millionyearsago). This record contains an intact 3-metre-long network of in situ fossil roots embedded in a mudstone matrix containing diverse pollen and spores. A climate model simulation shows that the reconstructed temperate climate at this high latitude requires a combination of both atmospheric carbon dioxide concentrations of 1,120–1,680parts per million by volume and a vegetated land surface without major Antarctic glaciation, highlighting the important cooling effect exerted by ice albedo under high levels of atmospheric carbon dioxide. © 2020, The Author(s), under exclusive licence to Springer Nature Limited.
Subject headings and genre
- NATURVETENSKAP Biologi Ekologi hsv//swe
- NATURAL SCIENCES Biological Sciences Ecology hsv//eng
- carbon dioxide
- albedo
- climate modeling
- Cretaceous
- mudstone
- paleolatitude
- rainforest
- sedimentary sequence
- Antarctica
- Article
- atmosphere
- climate
- fossil plant
- fossil spore
- glaciation
- heat
- latitude
- nonhuman
- paleoenvironment
- pollen
- priority journal
- sediment
- temperate rain forest
- vegetation
- East Antarctica
- South Pole
Added entries (persons, corporate bodies, meetings, titles ...)
- Salzmann, U. (author)
- Bickert, T. (author)
- Hillenbrand, C. D. (author)
- Gohl, K. (author)
- Kuhn, G. (author)
- Bohaty, S. M. (author)
- Titschack, J. (author)
- Müller, J. (author)
- Frederichs, T. (author)
- Bauersachs, T. (author)
- Ehrmann, W. (author)
- van de Flierdt, T. (author)
- Simões Pereira, PatricGothenburg University,Göteborgs universitet,Institutionen för marina vetenskaper,Department of marine sciences(Swepub:gu)xsimpa (author)
- Larter, R. D. (author)
- Lohmann, G. (author)
- Niezgodzki, I. (author)
- Uenzelmann-Neben, G. (author)
- Zundel, M. (author)
- Spiegel, C. (author)
- Mark, C. (author)
- Chew, D. (author)
- Francis, J. E. (author)
- Nehrke, G. (author)
- Schwarz, F. (author)
- Smith, J. A. (author)
- Freudenthal, T. (author)
- Esper, O. (author)
- Pälike, H. (author)
- Ronge, T. A. (author)
- Dziadek, R. (author)
- Afanasyeva, V. (author)
- Arndt, J. E. (author)
- Ebermann, B. (author)
- Gebhardt, C. (author)
- Hochmuth, K. (author)
- Küssner, K. (author)
- Najman, Y. (author)
- Riefstahl, F. (author)
- Scheinert, M. (author)
- Göteborgs universitetInstitutionen för marina vetenskaper (creator_code:org_t)
Related titles
- In:Nature: Springer Science and Business Media LLC580:7801, s. 81-860028-08361476-4687
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- Bohaty, S. M.
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- Francis, J. E.
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