Lipid biomarkers in Lake Wudalianchi record abrupt environmental changes from the volcanic eruption in 1776

doi:10.1016/j.orggeochem.2021.104349

	Lipid biomarkers in Lake Wudalianchi record abrupt environmental changes from the volcanic eruption in 1776
	Yao, Yuan 3,4,5; Huang, Yongsong 3; Zhao, Jiaju 4; Wang, Li 2; Cheng, Hai 1,4,5
刊名	ORGANIC GEOCHEMISTRY
	2022-02-01
卷号	164 页码:10
关键词	Lipid biomarkers Volcanic eruption Alkenones GDGTs Methane cycling Volcanic lakes
ISSN号	0146-6380
DOI	10.1016/j.orggeochem.2021.104349
通讯作者	Yao, Yuan(yaoyuan@xjtu.edu.cn) ; Huang, Yongsong(yongsong_huang@brown.edu)
英文摘要	Volcanic eruptions can cause abrupt changes in surrounding environments, but detailed sediment records of such changes are rare. The very high sediment accumulation rate in Lake Wudalianchi, a volcanic-dammed freshwater lake in northeastern China, provides an excellent opportunity for reconstructing volcanic-induced environmental change. Here we use multiple lipid biomarkers to reconstruct changes in aquatic ecosystems, hydrology, and methane cycling before and after a regional explosive volcanic eruption in 1776. Our results indicate that the Wudalianchi catchment was a shallow organic-rich marsh environment with abundant aquatic emergent macrophytes and an intense microbial methane cycle before the volcanic eruption. Following the volcanic eruption, the marsh was rapidly transformed into an oligohaline lake environment due to river channel damming by lava. Associated with the abrupt environmental change, we observe corresponding changes of cyclisation ratios of branched glycerol dialkyl glycerol tetraethers or brGDGTs (CBT and CBT ' indices), and the inferred pH displays an abrupt increase of -1.3. Group 1 alkenones emerge abruptly after the eruption when the inferred pH exceeds 8. Our results provide the first high-resolution reconstruction of environmental change induced by volcanic eruption and demonstrate the high efficacy of the lipid biomarkers in recording aquatic and terrestrial changes.
资助项目	National Natural Science Foundation of China[42073070] ; National Natural Science Foundation of China[41888101] ; National Natural Science Foundation of China[41702187] ; U.S. National Science Foundation[EAR-1122749] ; U.S. National Science Foundation[PLR-1503846] ; U.S. National Science Foundation[EAR-1502455] ; U.S. National Science Foundation[EAR-1762431] ; Fundamental Research Funds for the Central Universities ; Swiss Federal Institue of Technology
WOS关键词	DIALKYL GLYCEROL TETRAETHERS ; TEMPERATURE CALIBRATION ; WATER ; METHANE ; DISTRIBUTIONS ; PH ; ALKENONES ; BRGDGTS ; PALEOTEMPERATURE ; TRACERS
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000759650900004
资助机构	National Natural Science Foundation of China ; U.S. National Science Foundation ; Fundamental Research Funds for the Central Universities ; Swiss Federal Institue of Technology
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/17508]
专题	地球环境研究所_古环境研究室
通讯作者	Yao, Yuan; Huang, Yongsong
作者单位	1.Chinese Acad Geol Sci, Inst Karst Geol, Key Lab Karst Dynam, Minist Land & Resources, Guilin 541004, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China 3.Brown Univ, Dept Earth Environm & Planetary Sci, Providence, RI 02912 USA 4.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 5.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian 710054, Peoples R China
推荐引用方式 GB/T 7714	Yao, Yuan,Huang, Yongsong,Zhao, Jiaju,et al. Lipid biomarkers in Lake Wudalianchi record abrupt environmental changes from the volcanic eruption in 1776[J]. ORGANIC GEOCHEMISTRY,2022,164:10.
APA	Yao, Yuan,Huang, Yongsong,Zhao, Jiaju,Wang, Li,&Cheng, Hai.(2022).Lipid biomarkers in Lake Wudalianchi record abrupt environmental changes from the volcanic eruption in 1776.ORGANIC GEOCHEMISTRY,164,10.
MLA	Yao, Yuan,et al."Lipid biomarkers in Lake Wudalianchi record abrupt environmental changes from the volcanic eruption in 1776".ORGANIC GEOCHEMISTRY 164(2022):10.