The influence of Late Ordovician volcanism on the marine environment based on high-resolution mercury data from South China

doi:10.1130/B36257.1

	The influence of Late Ordovician volcanism on the marine environment based on high-resolution mercury data from South China
	Wang, Yong 4; Tan, Jingqiang 4; Wang, Wenhui 3,4; Zhou, Lian 2; Tang, Peng 1; Kang, Xun 4; Xie, Wenquan 4; Wang, Zhanghu 4; Dick, Jeffrey 4
刊名	GEOLOGICAL SOCIETY OF AMERICA BULLETIN
	2023-03-01
卷号	135 期号:3-4 页码:787-798
ISSN号	0016-7606
DOI	10.1130/B36257.1
通讯作者	Tan, Jingqiang(tanjingqiang@csu.edu.cn) ; Wang, Wenhui(whwang@csu.edu.cn)
英文摘要	Volcanic ash interbeds in the Late Ordovician strata in South China record high-frequency volcanic activity. To assess the impact of these volcanic events on the climate and marine biological evolutionary crisis during the Late Ordovician Mass Extinction (LOME), we present high-resolution measurements of mercury (Hg) concentrations and organic carbon isotope ratios (delta C-13(org)) in an Ordovician-Silurian sedimentary succession (Muchanggou section). The results show that high-frequency volcanic ash layers and Hg enrichments developed synchronously in the Katian graptolite P. pacificus (Lower Subzone) and T. typicus biozones and are coupled with a negative shift of similar to 1 parts per thousand in delta C-13(org), which reflects the perturbation of the surface carbon and mercury cycles by intense volcanic activity. Based on volcanic Hg fluxes, it is estimated that more than 1.1 x 10(13) tons of CO2 were emitted by the Katian volcanic activities in South China, which interrupted the growth of the polar ice sheet and the rapid cooling of tropical oceans in the mid-Boda event. As volcanism weakened, increased weathering led to the growth of the polar ice sheet and cooling in the Hirnantian. Both regional and global biodiversity declined rapidly with the end of volcanism, which suggests that the marine ecological crisis was related to a series of disruptions in biogeochemical cycles in the post-volcanic period.
资助项目	National Natural Science Foundation of China[41872151] ; National Natural Science Foundation of China[41772001] ; National Natural Science Foundation of China[41872035] ; China Hunan Provincial Science and Technology Department[2017XK2029] ; Innovation-Driven Project of Central South University[2020zzts186] ; State Key Laboratory of Palaeobiology and Stratigraphy (Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences)[213120] ; Natural Science Foundation of Hunan Province[2021JJ30816]
WOS关键词	LARGE IGNEOUS PROVINCES ; BOUNDARY SECTIONS ; FRAMBOIDAL PYRITE ; MASS EXTINCTIONS ; CO2 EMISSIONS ; ANOXIC EVENT ; ASH ; TRANSITION ; OXIDATION ; SEDIMENTS
WOS研究方向	Geology
语种	英语
出版者	GEOLOGICAL SOC AMER, INC
WOS记录号	WOS:001096648300005
资助机构	National Natural Science Foundation of China ; China Hunan Provincial Science and Technology Department ; Innovation-Driven Project of Central South University ; State Key Laboratory of Palaeobiology and Stratigraphy (Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences) ; Natural Science Foundation of Hunan Province
内容类型	期刊论文
源URL	[http://ir.nigpas.ac.cn/handle/332004/43200]
专题	中国科学院南京地质古生物研究所
通讯作者	Tan, Jingqiang; Wang, Wenhui
作者单位	1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China 2.China Univ Geosci, State Key Lab Geol Processes & Mineral Resources, Wuhan 430074, Peoples R China 3.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China 4.Cent South Univ, Sch Geosci & Infophys, Key Lab Metallogen Predict Nonferrous Met & Geol, Minist Educ, Changsha 410083, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yong,Tan, Jingqiang,Wang, Wenhui,et al. The influence of Late Ordovician volcanism on the marine environment based on high-resolution mercury data from South China[J]. GEOLOGICAL SOCIETY OF AMERICA BULLETIN,2023,135(3-4):787-798.
APA	Wang, Yong.,Tan, Jingqiang.,Wang, Wenhui.,Zhou, Lian.,Tang, Peng.,...&Dick, Jeffrey.(2023).The influence of Late Ordovician volcanism on the marine environment based on high-resolution mercury data from South China.GEOLOGICAL SOCIETY OF AMERICA BULLETIN,135(3-4),787-798.
MLA	Wang, Yong,et al."The influence of Late Ordovician volcanism on the marine environment based on high-resolution mercury data from South China".GEOLOGICAL SOCIETY OF AMERICA BULLETIN 135.3-4(2023):787-798.