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| DOI | 10.1038/s41467-021-25706-0 |
| Impact of global cooling on Early Cretaceous high pCO2 world during the Weissert Event | |
| Cavalheiro L.; Wagner T.; Steinig S.; Bottini C.; Dummann W.; Esegbue O.; Gambacorta G.; Giraldo-Gómez V.; Farnsworth A.; Flögel S.; Hofmann P.; Lunt D.J.; Rethemeyer J.; Torricelli S.; Erba E. | |
| 发表日期 | 2021 |
| ISSN | 2041-1723 |
| 卷号 | 12期号:1 |
| 英文摘要 | The Weissert Event ~133 million years ago marked a profound global cooling that punctuated the Early Cretaceous greenhouse. We present modelling, high-resolution bulk organic carbon isotopes and chronostratigraphically calibrated sea surface temperature (SSTs) based on an organic paleothermometer (the TEX86 proxy), which capture the Weissert Event in the semi-enclosed Weddell Sea basin, offshore Antarctica (paleolatitude ~54 °S; paleowater depth ~500 meters). We document a ~3–4 °C drop in SST coinciding with the Weissert cold end, and converge the Weddell Sea data, climate simulations and available worldwide multi-proxy based temperature data towards one unifying solution providing a best-fit between all lines of evidence. The outcome confirms a 3.0 °C (±1.7 °C) global mean surface cooling across the Weissert Event, which translates into a ~40% drop in atmospheric pCO2 over a period of ~700 thousand years. Consistent with geologic evidence, this pCO2 drop favoured the potential build-up of local polar ice. © 2021, Crown. |
| 语种 | 英语 |
| scopus关键词 | organic carbon; carbon dioxide; cooling; Cretaceous; numerical model; sea surface temperature; simulation; Antarctica; Article; carbon dioxide tension; climate; climate change; environmental temperature; global change; greenhouse effect; Hauterivian; Lower Cretaceous; Mesozoic; nannofossil; sea surface temperature; Valanginian; Weddell Sea; weissert event; Antarctica; Southern Ocean; Weddell Sea |
| 来源期刊 | Nature Communications
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/250620 |
| 作者单位 | Department of Earth Sciences Ardito Desio, University of Milan, Milan, Italy; The Lyell Centre, Heriot–Watt University, Edinburgh, United Kingdom; School of Geographical Sciences, University of Bristol, Bristol, United Kingdom; Institute of Geology and Mineralogy, University of Cologne, Cologne, Germany; Eni S.p.A. Natural Resources–Geology and Geophysics Research and Technological Innovation, San Donato Milanese, Milan, Italy; GEOMAR Helmholtz Centre for Ocean Research, Kiel, Germany; Eni S.p.A. Natural Resources–Sedimentology, Stratigraphy and Petrography Department, San Donato Milanese, Milan, Italy; Institute of Geosciences, Goethe-University Frankfurt, Frankfurt am Main, Germany; School of Natural and Environmental Science, Newcastle University, Newcastle, United Kingdom; State Key Laboratory of Tibetan Plateau Earth System, Resources and Environment (TPESRE), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, 100101, China |
| 推荐引用方式 GB/T 7714 | Cavalheiro L.,Wagner T.,Steinig S.,et al. Impact of global cooling on Early Cretaceous high pCO2 world during the Weissert Event[J],2021,12(1). |
| APA | Cavalheiro L..,Wagner T..,Steinig S..,Bottini C..,Dummann W..,...&Erba E..(2021).Impact of global cooling on Early Cretaceous high pCO2 world during the Weissert Event.Nature Communications,12(1). |
| MLA | Cavalheiro L.,et al."Impact of global cooling on Early Cretaceous high pCO2 world during the Weissert Event".Nature Communications 12.1(2021). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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