Marine anoxia linked to abrupt global warming during Earth's penultimate icehouse

doi:10.1073/pnas.2115231119

	Marine anoxia linked to abrupt global warming during Earth's penultimate icehouse
	Chen, Jitao 12,13; Montanez, Isabel P.10,11; Zhang, Shuang 9; Isson, Terry T.8; Macarewich, Sophia, I 7,11; Planavsky, Noah J.6; Zhang, Feifei 4,5; Rauzi, Sofia 8; Daviau, Kierstin 3,8; Yao, Le 12,13
刊名	PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
	2022-05-10
卷号	119 期号:19 页码:9
关键词	C-perturbation events marine anoxia greenhouse gas-driven abrupt global warming late Paleozoic U and C isotope excursions
ISSN号	0027-8424
DOI	10.1073/pnas.2115231119
通讯作者	Chen, Jitao(jtchen@nigpas.ac.cn) ; Montanez, Isabel P.(ipmontanez@ucdavis.edu) ; Wang, Xiang-Dong(xdwang@nju.edu.cn)
英文摘要	Piecing together the history of carbon (C) perturbation events throughout Earth's history has provided key insights into how the Earth system responds to abrupt warming. Previous studies, however, focused on short-term warming events that were superimposed on longer-term greenhouse climate states. Here, we present an integrated proxy (C and uranium [U] isotopes and paleo CO2) and multicomponent modeling approach to investigate an abrupt C perturbation and global warming event (similar to 304 Ma) that occurred during a paleo-glacial state. We report pronounced negative C and U isotopic excursions coincident with a doubling of atmospheric CO2 partial pressure and a biodiversity nadir. The isotopic excursions can be linked to an injection of similar to 9,000 Gt of organic matter-derived C over similar to 300 kyr and to near 20% of areal extent of seafloor anoxia. Earth system modeling indicates that widespread anoxic conditions can be linked to enhanced thermocline stratification and increased nutrient fluxes during this global warming within an icehouse.
资助项目	National Natural Science Foundation of China[42072035] ; National Natural Science Foundation of China[91955201] ; National Natural Science Foundation of China[41630101] ; National Natural Science Foundation of China[41830323] ; Strategic Priority Research Program of Chinese Academy of Sci-ences[XDB26000000] ; NSF[EAR1338281] ; NSF[1338200]
WOS关键词	PALEOZOIC ICE-AGE ; CARBON-CYCLE ; URANIUM ISOTOPE ; DELTA-U-238 RECORDS ; OCEAN DEOXYGENATION ; CLIMATE ; OXYGEN ; SEQUESTRATION ; PHOSPHORUS ; STRATIGRAPHY
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	NATL ACAD SCIENCES
WOS记录号	WOS:000839394900003
资助机构	National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sci-ences ; NSF
内容类型	期刊论文
源URL	[http://ir.nigpas.ac.cn/handle/332004/41160]
专题	中国科学院南京地质古生物研究所
通讯作者	Chen, Jitao; Montanez, Isabel P.; Wang, Xiang-Dong
作者单位	1.CAS Ctr Excellence Deep Earth Sci, Guangzhou 510640, Peoples R China 2.Arizona State Univ, Sch Earth & Space Explorat, Tempe, AZ 85287 USA 3.Toi Ohomai Inst Technol, Dept Engn, Tauranga 3110, New Zealand 4.Nanjing Univ, Frontiers Sci Ctr Crit Earth Mat Cycling, Nanjing 210023, Peoples R China 5.Nanjing Univ, Sch Earth Sci & Engn, State Key Lab Mineral Deposits Res, Nanjing 210023, Peoples R China 6.Yale Univ, Dept Geol & Geophys, New Haven, CT 06511 USA 7.Univ Michigan, Dept Earth & Environm Sci, Ann Arbor, MI 48109 USA 8.Univ Waikato, Sch Sci, Tauranga 3110, New Zealand 9.Texas A&M Univ, Dept Oceanog, College Stn, TX 77843 USA 10.Univ Calif Davis, Inst Environm, Davis, CA 95616 USA
推荐引用方式 GB/T 7714	Chen, Jitao,Montanez, Isabel P.,Zhang, Shuang,et al. Marine anoxia linked to abrupt global warming during Earth's penultimate icehouse[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2022,119(19):9.
APA	Chen, Jitao.,Montanez, Isabel P..,Zhang, Shuang.,Isson, Terry T..,Macarewich, Sophia, I.,...&Wang, Xiang-Dong.(2022).Marine anoxia linked to abrupt global warming during Earth's penultimate icehouse.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,119(19),9.
MLA	Chen, Jitao,et al."Marine anoxia linked to abrupt global warming during Earth's penultimate icehouse".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 119.19(2022):9.