Enhanced Continental Weathering as a Trigger for the End-Devonian Hangenberg Crisis

doi:10.1029/2022GL102640

	Enhanced Continental Weathering as a Trigger for the End-Devonian Hangenberg Crisis
	Qie, Wenkun 1; Zhang, Junpeng 1; Luo, Genming 2; Algeo, Thomas J.2,3,4; Chen, Bo 1; Xiang, Lei 1; Liang, Kun 1; Liu, Xianyi 5; von Strandmann, Philip A. E. Pogge 5,6; Chen, Jitao 1
刊名	GEOPHYSICAL RESEARCH LETTERS
	2023-06-16
卷号	50 期号:11 页码:10
关键词	weathering Li isotopes marine anoxia mass extinction land plant evolution paleoclimate
ISSN号	0094-8276
DOI	10.1029/2022GL102640
通讯作者	Qie, Wenkun(wkqie@nigpas.ac.cn) ; Zhang, Junpeng(jpzhang@nigpas.ac.cn)
英文摘要	The Hangenberg Crisis coincided with a large decline of biodiversity and widespread anoxia in the end-Devonian ocean. Previous research attributed marine anoxia to the spread of deeply-rooted plants and/or increased volcanism on the continents, but crucial links have not been thoroughly explored. Herein, we propose enhanced weathering as a key trigger, as evidenced by a negative shift (similar to 8 parts per thousand) in lithium isotopes and a coupled response in carbon isotopes of marine carbonates in South China. Our findings imply that rapid weathering of crustal rocks increased nutrient delivery to the ocean, as indicated by an increase in the carbonate-associated phosphate levels, contributing to oceanic eutrophication. In the absence of massive volcanic emissions and intense orogeny, the cause of enhanced continental weathering was likely the expansion of the terrestrial rhizosphere, highlighting the potential for land plant evolution to initiate weathering changes of sufficient severity to trigger a major bio/environmental crisis in the Earth system.
资助项目	NFSC[42293280] ; Ministry of Science and Technology of the PRC[2019QZKK0706] ; Chinese Academy of Sciences[XDB26000000] ; China Scholarship Council[201804910207] ; ERC Grant[682760 CONTROLPASTCO2]
WOS关键词	CARBON-CYCLE ; INTEGRATIVE STRATIGRAPHY ; LITHIUM ISOTOPES ; GLOBAL CLIMATE ; EVOLUTION ; LI ; DIAGENESIS ; TIMESCALE ; RATIOS ; EVENT
WOS研究方向	Geology
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:001008989000001
资助机构	NFSC ; Ministry of Science and Technology of the PRC ; Chinese Academy of Sciences ; China Scholarship Council ; ERC Grant
内容类型	期刊论文
源URL	[http://ir.nigpas.ac.cn/handle/332004/42404]
专题	中国科学院南京地质古生物研究所
通讯作者	Qie, Wenkun; Zhang, Junpeng
作者单位	1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing, Peoples R China 2.China Univ Geosci, Sch Earth Sci, State Key Lab Biogeol & Environm Geol, Wuhan, Peoples R China 3.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Wuhan, Peoples R China 4.Univ Cincinnati, Dept Geosci, Cincinnati, OH USA 5.UCL, Dept Earth Sci, LOGIC, London, England 6.Johannes Gutenberg Univ Mainz, Inst Geosci, MIGHTY, Mainz, Germany 7.Nanjing Univ, Frontiers Sci Ctr Crit Earth Mat Cycling, Sch Earth Sci & Engn, State Key Lab Mineral Deposits Res, Nanjing, Peoples R China
推荐引用方式 GB/T 7714	Qie, Wenkun,Zhang, Junpeng,Luo, Genming,et al. Enhanced Continental Weathering as a Trigger for the End-Devonian Hangenberg Crisis[J]. GEOPHYSICAL RESEARCH LETTERS,2023,50(11):10.
APA	Qie, Wenkun.,Zhang, Junpeng.,Luo, Genming.,Algeo, Thomas J..,Chen, Bo.,...&Wang, Xiangdong.(2023).Enhanced Continental Weathering as a Trigger for the End-Devonian Hangenberg Crisis.GEOPHYSICAL RESEARCH LETTERS,50(11),10.
MLA	Qie, Wenkun,et al."Enhanced Continental Weathering as a Trigger for the End-Devonian Hangenberg Crisis".GEOPHYSICAL RESEARCH LETTERS 50.11(2023):10.