中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Improved efficiency of the biological pump as a trigger for the Late Ordovician glaciation

文献类型:期刊论文

AuthorShen, Jiaheng6,7; Pearson, Ann7; Henkes, Gregory A.5,7; Zhang, Yi Ge4,7; Chen, Kefan3; Li, Dandan3; Wankel, Scott D.2; Finney, Stanley C.1; Shen, Yanan3
SourceNATURE GEOSCIENCE
Issued Date2018-07-01
Volume11Issue:7Pages:510-+
ISSN1752-0894
DOI10.1038/s41561-018-0141-5
English AbstractThe first of the 'Big Five' Phanerozoic mass extinctions occurred in tandem with an episode of glaciation during the Hirnantian Age of the Late Ordovician. The mechanism or change in the carbon cycle that promoted this glaciation, thereby resulting in the extinction, is still debated. Here we report new, coupled nitrogen isotope analyses of bulk sediments and chlorophyll degradation products (porphyrins) from the Vinini Creek section (Vinini Formation, Nevada, USA) to show that eukaryotes increasingly dominated marine export production in the lead-up to the Hirnantian extinction. We then use these findings to evaluate changes in the carbon cycle by incorporating them into a biogeochemical model in which production is increased in response to an elevated phosphorus inventory, potentially caused by enhanced continental weathering in response to the activity of land plants and/or an episode of volcanism. The results suggest that expanded eukaryotic algal production may have increased the community average cell size, leading to higher export efficiency during the Late Katian. The coincidence of this community shift with a large-scale marine transgression increased organic carbon burial, drawing down CO2 and triggering the Hirnantian glaciation. This episode may mark an early Palaeozoic strengthening of the biological pump, which, for a short while, may have made eukaryotic algae indirect killers.
WOS KeywordNITROGEN ISOTOPIC COMPOSITION ; PALEOZOIC BLACK SHALES ; MASS EXTINCTION ; ENVIRONMENTAL-CHANGES ; ORGANIC-CARBON ; FOOD-WEB ; PHYTOPLANKTON ; OCEAN ; SEAWATER ; EXPORT
Funding ProjectChina Scholarship Council ; National Natural Science Foundation of China[41520104007] ; National Natural Science Foundation of China[41330102] ; NASA Astrobiology Institute ; Gordon and Betty Moore Foundation
WOS Research AreaGeology
Language英语
WOS IDWOS:000438794800014
PublisherNATURE PUBLISHING GROUP
Funding OrganizationChina Scholarship Council ; China Scholarship Council ; China Scholarship Council ; China Scholarship Council ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NASA Astrobiology Institute ; NASA Astrobiology Institute ; NASA Astrobiology Institute ; NASA Astrobiology Institute ; Gordon and Betty Moore Foundation ; Gordon and Betty Moore Foundation ; Gordon and Betty Moore Foundation ; Gordon and Betty Moore Foundation ; China Scholarship Council ; China Scholarship Council ; China Scholarship Council ; China Scholarship Council ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NASA Astrobiology Institute ; NASA Astrobiology Institute ; NASA Astrobiology Institute ; NASA Astrobiology Institute ; Gordon and Betty Moore Foundation ; Gordon and Betty Moore Foundation ; Gordon and Betty Moore Foundation ; Gordon and Betty Moore Foundation ; China Scholarship Council ; China Scholarship Council ; China Scholarship Council ; China Scholarship Council ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NASA Astrobiology Institute ; NASA Astrobiology Institute ; NASA Astrobiology Institute ; NASA Astrobiology Institute ; Gordon and Betty Moore Foundation ; Gordon and Betty Moore Foundation ; Gordon and Betty Moore Foundation ; Gordon and Betty Moore Foundation ; China Scholarship Council ; China Scholarship Council ; China Scholarship Council ; China Scholarship Council ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NASA Astrobiology Institute ; NASA Astrobiology Institute ; NASA Astrobiology Institute ; NASA Astrobiology Institute ; Gordon and Betty Moore Foundation ; Gordon and Betty Moore Foundation ; Gordon and Betty Moore Foundation ; Gordon and Betty Moore Foundation
源URL[http://ir.iggcas.ac.cn/handle/132A11/94014]  
Collection地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
Corresponding AuthorShen, Jiaheng; Pearson, Ann
Affiliation1.Calif State Univ Long Beach, Dept Geol Sci, Long Beach, CA 90840 USA
2.Woods Hole Oceanog Inst, Dept Marine Chem & Geochem, Woods Hole, MA 02543 USA
3.Univ Sci & Technol China, Sch Earth & Space Sci, Hefei, Anhui, Peoples R China
4.Texas A&M Univ, Dept Oceanog, College Stn, TX 77843 USA
5.SUNY Stony Brook, Dept Geosci, Stony Brook, NY 11794 USA
6.Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China
7.Harvard Univ, Dept Earth & Planetary Sci, 20 Oxford St, Cambridge, MA 02138 USA
Recommended Citation
GB/T 7714
Shen, Jiaheng,Pearson, Ann,Henkes, Gregory A.,et al. Improved efficiency of the biological pump as a trigger for the Late Ordovician glaciation[J]. NATURE GEOSCIENCE,2018,11(7):510-+.
APA Shen, Jiaheng.,Pearson, Ann.,Henkes, Gregory A..,Zhang, Yi Ge.,Chen, Kefan.,...&Shen, Yanan.(2018).Improved efficiency of the biological pump as a trigger for the Late Ordovician glaciation.NATURE GEOSCIENCE,11(7),510-+.
MLA Shen, Jiaheng,et al."Improved efficiency of the biological pump as a trigger for the Late Ordovician glaciation".NATURE GEOSCIENCE 11.7(2018):510-+.

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来源:地质与地球物理研究所

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