NIGPAS OpenIR
Intensified Ocean Deoxygenation During the end Devonian Mass Extinction
Liu, Jiangsi1,2,3; Luo, Genming1,2; Lu, Zunli4; Lu, Wanyi4; Qie, Wenkun (郄文昆)5,6; Zhang, Feifei7; Wang, Xiangdong (王向东)8; Xie, Shucheng1,2
2019-12-28
Source PublicationGEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
Pages12
Abstract

The end-Devonian mass extinction (similar to 359 Ma) substantially impacted marine ecosystems and shaped the roots of modern vertebrate biodiversity. Although multiple hypotheses have been proposed, no consensus has been reached about the mechanism inducing this extinction event. In this study, I/Ca ratio of carbonate was used to unravel the changes in local oxygen content of the upper water column during this critical interval. The Devonian-Carboniferous boundary was recorded in two shallow water carbonate sections in south China. I/Ca values at both locations show a clear decline in the Middle and Upper Siphonodella praesulcata conodont zones, which coincides with a positive shift in carbonate carbon isotope composition and a negative shift in nitrogen isotope composition. These results suggest that deoxygenation was intensified during this critical interval, which likely influenced shallow water habitats, lending support to the notion that oxygen deficiency likely was a direct mechanism impacting the end-Devonian mass extinction.

KeywordI Ca ratio deoxygenation Hangenberg mass extinction climatic cooling Devonian Carboniferous
DOI10.1029/2019GC008614
Language英语
WOS KeywordCARBONIFEROUS BOUNDARY ; GEOCHEMICAL EVIDENCE ; ENVIRONMENTAL-CHANGE ; NITROGEN-FIXATION ; HANGENBERG EVENT ; DISSOLVED IODATE ; REDOX CONDITIONS ; CARNIC ALPS ; IODINE ; CARBONATE
Funding ProjectStrategic Priority Research Program of Chinese Academy of Sciences[XDB26000000] ; National Natural Science Foundation of China[41821001] ; National Key R&D Project of China[2016YFA0601104] ; China Scholarship Council Fund[201706410081] ; NSF[EAR-1349252] ; NSF[OCE-1736542] ; Danish Agency for Science, Technology and Innovation grant[DFF 7014-00295]
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000504593600001
Funding OrganizationStrategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Key R&D Project of China ; China Scholarship Council Fund ; NSF ; Danish Agency for Science, Technology and Innovation grant
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/29710
Collection中国科学院南京地质古生物研究所
Corresponding AuthorLuo, Genming; Lu, Zunli
Affiliation1.China Univ Geosci, State Key Lab Biogeol & Environm Geol, Wuhan, Hubei, Peoples R China
2.China Univ Geosci, Sch Earth Sci, Wuhan, Hubei, Peoples R China
3.Xiamen Univ, State Key Lab Marine Environm Sci, Xiamen, Fujian, Peoples R China
4.Syracuse Univ, Dept Earth Sci, Syracuse, NY 13244 USA
5.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, CAS Key Lab Econ Stratig & Palaeogeog, Nanjing, Jiangsu, Peoples R China
6.Chinese Acad Sci, Ctr Excellence Life & Palaeoenvironm, Nanjing, Jiangsu, Peoples R China
7.Yale Univ, Dept Geol & Geophys, New Haven, CT USA
8.Nanjing Univ, Ctr Res & Educ Biol Evolut & Environm, Nanjing, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Liu, Jiangsi,Luo, Genming,Lu, Zunli,et al. Intensified Ocean Deoxygenation During the end Devonian Mass Extinction[J]. GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS,2019:12.
APA Liu, Jiangsi.,Luo, Genming.,Lu, Zunli.,Lu, Wanyi.,Qie, Wenkun .,...&Xie, Shucheng.(2019).Intensified Ocean Deoxygenation During the end Devonian Mass Extinction.GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS,12.
MLA Liu, Jiangsi,et al."Intensified Ocean Deoxygenation During the end Devonian Mass Extinction".GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS (2019):12.
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