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Did an asteroid impact cause temporary warming during snowball Earth?

文献类型：期刊论文

作者Lan, Zhongwu1; Mitchell, Ross N.1; Gernon, Thomas M.2; Nordsvan, Adam R.3
刊名EARTH AND PLANETARY SCIENCE LETTERS
出版日期2022-03-01
卷号581页码:6
关键词snowball Earth Sturtian glaciation asteroid impact greenhouse warming slushball
ISSN号0012-821X
DOI10.1016/j.epsl.2022.117407
英文摘要The ca. 717 Ma low-latitude Sturtian "snowball Earth " glaciation lasted ~& nbsp;56 Myr. However, sedimentological evidence for transient, open ocean conditions during the glaciation appears to contradict the concept of a global deep freeze. We demonstrate multiple lines of geologic evidence from five continents for a temporary, localized sea-ice retreat during the middle of the Sturtian glaciation, which coincides with one, perhaps two, asteroid impacts, and arguably more terrestrial impacts as inferred from the lunar impact record. The well-dated Janisjarvi impact (ca. 687 Ma) is synchronous with repeated volcanic ash falls whose deposition is most parsimoniously interpreted to indicate a partially ice-free ocean. Temporary greenhouse warming caused by the vaporization of sea ice can explain localized glacial retreat within restricted seaways between these continents, where ice flow would have been constricted and sea ice thinnest before impact. (C)& nbsp;2022 The Author(s). Published by Elsevier B.V.
WOS关键词BREAK-UP ; GLACIATIONS ; RODINIA ; EVENTS ; BEDS ; AGE
资助项目NSFC[41888101] ; NSFC[41673016] ; Key Research Program of the Institute of Geology & Geophysics, CAS[IGGCAS-201905] ; State Key Laboratory of Lithospheric Evolution, Institute of Geology & Geophysics, CAS[SKL-Z202001] ; NERC[NE/R004978/1]
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000783030300013
出版者ELSEVIER
资助机构NSFC ; NSFC ; NSFC ; NSFC ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; State Key Laboratory of Lithospheric Evolution, Institute of Geology & Geophysics, CAS ; State Key Laboratory of Lithospheric Evolution, Institute of Geology & Geophysics, CAS ; State Key Laboratory of Lithospheric Evolution, Institute of Geology & Geophysics, CAS ; State Key Laboratory of Lithospheric Evolution, Institute of Geology & Geophysics, CAS ; NERC ; NERC ; NERC ; NERC ; NSFC ; NSFC ; NSFC ; NSFC ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; State Key Laboratory of Lithospheric Evolution, Institute of Geology & Geophysics, CAS ; State Key Laboratory of Lithospheric Evolution, Institute of Geology & Geophysics, CAS ; State Key Laboratory of Lithospheric Evolution, Institute of Geology & Geophysics, CAS ; State Key Laboratory of Lithospheric Evolution, Institute of Geology & Geophysics, CAS ; NERC ; NERC ; NERC ; NERC ; NSFC ; NSFC ; NSFC ; NSFC ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; State Key Laboratory of Lithospheric Evolution, Institute of Geology & Geophysics, CAS ; State Key Laboratory of Lithospheric Evolution, Institute of Geology & Geophysics, CAS ; State Key Laboratory of Lithospheric Evolution, Institute of Geology & Geophysics, CAS ; State Key Laboratory of Lithospheric Evolution, Institute of Geology & Geophysics, CAS ; NERC ; NERC ; NERC ; NERC ; NSFC ; NSFC ; NSFC ; NSFC ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; State Key Laboratory of Lithospheric Evolution, Institute of Geology & Geophysics, CAS ; State Key Laboratory of Lithospheric Evolution, Institute of Geology & Geophysics, CAS ; State Key Laboratory of Lithospheric Evolution, Institute of Geology & Geophysics, CAS ; State Key Laboratory of Lithospheric Evolution, Institute of Geology & Geophysics, CAS ; NERC ; NERC ; NERC ; NERC
源URL[http://ir.iggcas.ac.cn/handle/132A11/105106]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Mitchell, Ross N.
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
2.Univ Southampton, Sch Ocean & Earth Sci, Southampton SO22 4JR, Hants, England
3.Univ Hong Kong, Dept Earth Sci, Pokfulam, Hong Kong, Peoples R China
推荐引用方式
GB/T 7714		 Lan, Zhongwu,Mitchell, Ross N.,Gernon, Thomas M.,et al. Did an asteroid impact cause temporary warming during snowball Earth?[J]. EARTH AND PLANETARY SCIENCE LETTERS,2022,581:6.
APA Lan, Zhongwu,Mitchell, Ross N.,Gernon, Thomas M.,&Nordsvan, Adam R..(2022).Did an asteroid impact cause temporary warming during snowball Earth?.EARTH AND PLANETARY SCIENCE LETTERS,581,6.
MLA Lan, Zhongwu,et al."Did an asteroid impact cause temporary warming during snowball Earth?".EARTH AND PLANETARY SCIENCE LETTERS 581(2022):6.

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来源：地质与地球物理研究所

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