Shallow ocean deoxygenation drove trilobite turnover during the late Cambrian SPICE event

doi:10.1130/G52200.1

IOCAS-IR > 海洋地质与环境重点实验室

	Shallow ocean deoxygenation drove trilobite turnover during the late Cambrian SPICE event
	Yang, Aihua 1; Chen, Bo 2; Sun, Zhixin 2,3; Tostevin, Rosalie 4; He, Tianchen 5; Chen, Xi 1; Chen, Jitao 2; Lu, Miao 2; Hu, Chunlin 2; Du, Shengxian 6; Chen, Jun 6; Jiao, Wenjun 7; Zhu, Maoyan 2,3
	2024-06-17
发表期刊	GEOLOGY
ISSN	0091-7613
页码	6
通讯作者	Chen, Bo(chenbo@nigpas.ac.cn)
摘要	The spread of marine anoxia is believed to have played a key role in the development of the SPICE (Steptoean Positive Carbon Isotope Excursion) event and the end-Marjuman extinction in the late Cambrian (similar to 497.5 m.y. ago), but their cause-and-effect relationship is poorly constrained. Here we present an integrated analysis of carbonate delta 13C, cerium anomalies (Ce/Ce), and genus-level diversity data of trilobites from the North China Platform. Our results show tightly coupled changes between the SPICE, an increase in Ce/Ce, and a trilobite turnover event, which we interpret as indicating enhanced productivity and organic remineralization, leading to the development of low-oxygen conditions in shallowwater settings. This study therefore establishes a direct link between local ecological stress and trilobite turnover during the global SPICE event. Furthermore, the presence of low-oxygen rather than fully anoxic conditions during the peak of the SPICE event could explain the nature of the end-Marjuman crisis, which was characterized by the replacement of shallowwater fauna by deeper-water counterparts that were potentially more tolerant of hypoxia.
DOI	10.1130/G52200.1
收录类别	SCI
语种	英语
资助项目	National Key R&D Program of China[2022YFF0800100] ; National Natural Science Foundation of China[41921002] ; National Natural Science Foundation of China[41872011] ; National Natural Science Foundation of China[42073006] ; Fundamental Research Funds for the Central Universities of China[0206-14380137] ; NRF-COE (South African National Research Foundation Centre of Excellence) GENUS ; South African Biogeo-chemistry Research Infrastructure Platform (BIOGRIP) ; Jiangsu Specially-Appointed Professor Award
WOS研究方向	Geology
WOS类目	Geology
WOS记录号	WOS:001249890200001
出版者	GEOLOGICAL SOC AMER, INC
WOS关键词	RARE-EARTH-ELEMENT ; DIAGENESIS ; STRATIGRAPHY ; EXTINCTIONS ; EUXINIA ; OXYGEN
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/186504
专题	海洋地质与环境重点实验室
通讯作者	Chen, Bo
作者单位	1.Nanjing Univ, Sch Earth Sci & Engn, Nanjing 210023, Peoples R China 2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China 3.Univ CAS, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 4.Univ Cape Town, Dept Geol Sci, ZA-7701 Cape Town, South Africa 5.Hohai Univ, Coll Oceanog, Nanjing 210024, Peoples R China 6.Shandong Inst Geol Sci, Jinan 250013, Peoples R China 7.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Yang, Aihua,Chen, Bo,Sun, Zhixin,et al. Shallow ocean deoxygenation drove trilobite turnover during the late Cambrian SPICE event[J]. GEOLOGY,2024:6.
APA	Yang, Aihua.,Chen, Bo.,Sun, Zhixin.,Tostevin, Rosalie.,He, Tianchen.,...&Zhu, Maoyan.(2024).Shallow ocean deoxygenation drove trilobite turnover during the late Cambrian SPICE event.GEOLOGY,6.
MLA	Yang, Aihua,et al."Shallow ocean deoxygenation drove trilobite turnover during the late Cambrian SPICE event".GEOLOGY (2024):6.