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Stable ocean redox during the main phase of the Great Ordovician Biodiversification Event

文献类型：期刊论文

作者del Rey, Alvaro4; Rasmussen, Christian Mac Orum4; Calner, Mikael3; Wu, Rongchang2; Asael, Dan1; Dahl, Tais W.4; Wu, Rongchang（吴荣昌）
刊名COMMUNICATIONS EARTH & ENVIRONMENT
出版日期2022-09-22
卷号3期号:1页码:7
DOI10.1038/s43247-022-00548-w
通讯作者Dahl, Tais W.(tais.dahl@sund.ku.dk)
英文摘要The period leading up to the Great Ordovician Biodiversification Event was characterised by stable marine anoxic zones with a substantial increase in atmospheric oxygen occurring only after this, according to uranium isotope analyses of marine carbonates from southern Sweden The Great Ordovician Biodiversification Event (GOBE) represents the greatest increase in marine animal biodiversity ever recorded. What caused this transformation is heavily debated. One hypothesis states that rising atmospheric oxygen levels drove the biodiversification based on the premise that animals require oxygen for their metabolism. Here, we present uranium isotope data from a Middle Ordovician marine carbonate succession that shows the steepest rise in generic richness occurred with global marine redox stability. Ocean oxygenation ensued later and could not have driven the biodiversification. Stable marine anoxic zones prevailed during the maximum increase in biodiversity (Dapingian-early Darriwilian) when the life expectancy of evolving genera greatly increased. Subsequently, unstable ocean redox conditions occurred together with a marine carbon cycle disturbance and a decrease in relative diversification rates. Therefore, we propose that oceanic redox stability was a factor in facilitating the establishment of more resilient ecosystems allowing marine animal life to radiate.
WOS关键词LOWER-MIDDLE ORDOVICIAN ; CLIMATE-CHANGE ; ISOTOPE CHEMOSTRATIGRAPHY ; ORTHOCERATITE LIMESTONE ; OXYGEN ; STRATIGRAPHY ; U-238/U-235 ; ANOXIA ; CARBON ; FRACTIONATION
资助项目Carlsberg Foundation[CF16-0876] ; Danish Council for Independent Research[7014-00295B] ; Danish Council for Independent Research[8102-00005B] ; GeoCenter Denmark[2015-5] ; GeoCenter Denmark[3-2017] ; IGCP Project[735] ; Crafoord foundation[20140806] ; Royal Physiographic Society of Lund
WOS研究方向Environmental Sciences & Ecology ; Geology ; Meteorology & Atmospheric Sciences
语种英语
出版者SPRINGERNATURE
WOS记录号WOS:000858815200002
资助机构Carlsberg Foundation ; Danish Council for Independent Research ; GeoCenter Denmark ; IGCP Project ; Crafoord foundation ; Royal Physiographic Society of Lund
源URL[http://ir.nigpas.ac.cn/handle/332004/41264]  
专题中国科学院南京地质古生物研究所
通讯作者Dahl, Tais W.
作者单位1.Yale Univ, Dept Earth & Planetary Sci, New Haven, CT 06511 USA
2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, 39 East Beijing Rd, Nanjing 210008, Peoples R China
3.Lund Univ, Dept Geol, Solvegatan 12, SE-22362 Lund, Sweden
4.Univ Copenhagen, GLOBE Inst, Oster Voldgade 5-7, DK-1350 Copenhagen K, Denmark
推荐引用方式
GB/T 7714		 del Rey, Alvaro,Rasmussen, Christian Mac Orum,Calner, Mikael,et al. Stable ocean redox during the main phase of the Great Ordovician Biodiversification Event[J]. COMMUNICATIONS EARTH & ENVIRONMENT,2022,3(1):7.
APA del Rey, Alvaro.,Rasmussen, Christian Mac Orum.,Calner, Mikael.,Wu, Rongchang.,Asael, Dan.,...&Wu, Rongchang.(2022).Stable ocean redox during the main phase of the Great Ordovician Biodiversification Event.COMMUNICATIONS EARTH & ENVIRONMENT,3(1),7.
MLA del Rey, Alvaro,et al."Stable ocean redox during the main phase of the Great Ordovician Biodiversification Event".COMMUNICATIONS EARTH & ENVIRONMENT 3.1(2022):7.

入库方式： OAI收割

来源：南京地质古生物研究所

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