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Zinc and strontium isotope evidence for climate cooling and constraints on the Frasnian-Famennian (similar to 372 Ma) mass extinction

文献类型：期刊论文

作者Wang, Xun1,2; Liu, Sheng-Ao1; Wang, Zhengrong1,2; Chen, Daizhao3; Zhang, Liyu3
刊名PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
出版日期2018-06-01
卷号498页码:68-82
关键词Late Devonian Kellwasser Event Leaching Method Differential Weathering Eutrophication South China
ISSN号0031-0182
DOI10.1016/j.palaeo.2018.03.002
文献子类Article
英文摘要The Frasnian-Famennian (F-F) mass extinction is one of the "Big Five" biotic crises during the Phanerozoic, whereas the cause of this catastrophic event still remains debated. Here we present for the first time high resolution Zn and Sr isotope data obtained by a sequential leaching procedure for carbonate rocks across the F-F boundary from the Fuhe section in South China. Both delta Zn-66 and Sr-87/Sr-86 values rapidly increase in the Lower and Upper Kellwasser Horizons and Palmatolepis delicatula platys to P. minuta minuta conodont zones, and the positive isotope shifts are exactly located in the same horizons characterized by low Delta C-13 values (equivalent to low atmospheric PCO2 level, reflecting climate cooling) and sea-level fall stages. The strong temporal coupling of delta Zn-66 values raise with elevated Sr-87/Sr-86 ratios is most likely to have been caused by input of isotopically heavy Zn and radiogenic Sr from carbonate-dominated weathering, and/or uptake of isotopically light Zn into primary producers during climate cooling. Climate cooling could cause relative sea-level falls resulting in widespread exposure of carbonate platform, enhance carbonate influx proportion through differential weathering of carbonate and silicate rocks, and cause greater productivity by promoting oceanic thermohaline circulation and enhancing upwelling of bio-limiting nutrients. All of these processes would have contributed to the positive shifts of delta Zn-66 as observed. This proposed scenario is in accordance with the fact that the F-F mass extinction was almost limited to the shallow-water tropical stenothermal faunas, whereas the high latitude and deep-water faunas were less affected. Our data support and represent the composite effect of a series of events linked to climate cooling which may have induced this catastrophic event.
WOS关键词PHANEROZOIC BIODIVERSITY CRISES ; SOUTH CHINA ; CARBON ISOTOPES ; ORBITAL CYCLOSTRATIGRAPHY ; SEQUENCE STRATIGRAPHY ; WEATHERING PROCESSES ; GEOCHEMICAL EVIDENCE ; MARINE LIMESTONES ; STABLE-ISOTOPES ; SNOWBALL EARTH
WOS研究方向Physical Geography ; Geology ; Paleontology
语种英语
WOS记录号WOS:000430785200006
出版者ELSEVIER SCIENCE BV
资助机构National Natural Science Foundation of China(41622303 ; National Natural Science Foundation of China(41622303 ; "Strategic Priority Research Program" of the Chinese Academy of Sciences(XDB18030603) ; "Strategic Priority Research Program" of the Chinese Academy of Sciences(XDB18030603) ; Fok Ying Tung Education Foundation(2-2-2016-01) ; Fok Ying Tung Education Foundation(2-2-2016-01) ; Fundamental Research Funds for the Central Universities(2-9-2015-299) ; Fundamental Research Funds for the Central Universities(2-9-2015-299) ; Science and Technology Innovation Fund for Graduate Students of CUGB(294176111007) ; Science and Technology Innovation Fund for Graduate Students of CUGB(294176111007) ; 40673013 ; 40673013 ; 41290260) ; 41290260) ; National Natural Science Foundation of China(41622303 ; National Natural Science Foundation of China(41622303 ; "Strategic Priority Research Program" of the Chinese Academy of Sciences(XDB18030603) ; "Strategic Priority Research Program" of the Chinese Academy of Sciences(XDB18030603) ; Fok Ying Tung Education Foundation(2-2-2016-01) ; Fok Ying Tung Education Foundation(2-2-2016-01) ; Fundamental Research Funds for the Central Universities(2-9-2015-299) ; Fundamental Research Funds for the Central Universities(2-9-2015-299) ; Science and Technology Innovation Fund for Graduate Students of CUGB(294176111007) ; Science and Technology Innovation Fund for Graduate Students of CUGB(294176111007) ; 40673013 ; 40673013 ; 41290260) ; 41290260) ; National Natural Science Foundation of China(41622303 ; National Natural Science Foundation of China(41622303 ; "Strategic Priority Research Program" of the Chinese Academy of Sciences(XDB18030603) ; "Strategic Priority Research Program" of the Chinese Academy of Sciences(XDB18030603) ; Fok Ying Tung Education Foundation(2-2-2016-01) ; Fok Ying Tung Education Foundation(2-2-2016-01) ; Fundamental Research Funds for the Central Universities(2-9-2015-299) ; Fundamental Research Funds for the Central Universities(2-9-2015-299) ; Science and Technology Innovation Fund for Graduate Students of CUGB(294176111007) ; Science and Technology Innovation Fund for Graduate Students of CUGB(294176111007) ; 40673013 ; 40673013 ; 41290260) ; 41290260) ; National Natural Science Foundation of China(41622303 ; National Natural Science Foundation of China(41622303 ; "Strategic Priority Research Program" of the Chinese Academy of Sciences(XDB18030603) ; "Strategic Priority Research Program" of the Chinese Academy of Sciences(XDB18030603) ; Fok Ying Tung Education Foundation(2-2-2016-01) ; Fok Ying Tung Education Foundation(2-2-2016-01) ; Fundamental Research Funds for the Central Universities(2-9-2015-299) ; Fundamental Research Funds for the Central Universities(2-9-2015-299) ; Science and Technology Innovation Fund for Graduate Students of CUGB(294176111007) ; Science and Technology Innovation Fund for Graduate Students of CUGB(294176111007) ; 40673013 ; 40673013 ; 41290260) ; 41290260)
源URL[http://ir.iggcas.ac.cn/handle/132A11/88268]  
专题地质与地球物理研究所_中国科学院油气资源研究重点实验室
通讯作者Liu, Sheng-Ao
作者单位1.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Beijing 100083, Peoples R China
2.CUNY, City Coll New York, Dept Earth & Atmospher Sci, New York, NY 10031 USA
3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Xun,Liu, Sheng-Ao,Wang, Zhengrong,et al. Zinc and strontium isotope evidence for climate cooling and constraints on the Frasnian-Famennian (similar to 372 Ma) mass extinction[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2018,498:68-82.
APA Wang, Xun,Liu, Sheng-Ao,Wang, Zhengrong,Chen, Daizhao,&Zhang, Liyu.(2018).Zinc and strontium isotope evidence for climate cooling and constraints on the Frasnian-Famennian (similar to 372 Ma) mass extinction.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,498,68-82.
MLA Wang, Xun,et al."Zinc and strontium isotope evidence for climate cooling and constraints on the Frasnian-Famennian (similar to 372 Ma) mass extinction".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 498(2018):68-82.

入库方式： OAI收割

来源：地质与地球物理研究所

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