气候变化领域集成服务门户(CCPortal): Volcanically driven lacustrine ecosystem changes during the Carnian Pluvial Episode (Late Triassic)

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DOI	10.1073/pnas.2109895118
	Volcanically driven lacustrine ecosystem changes during the Carnian Pluvial Episode (Late Triassic)
	Lu J.; Zhang P.; Corso J.D.; Yang M.; Wignall P.B.; Greene S.E.; Shao L.; Lyu D.; Hilton J.
发表日期	2021
ISSN	0027-8424
卷号	118 期号:40
英文摘要	The Late Triassic Carnian Pluvial Episode (CPE) saw a dramatic increase in global humidity and temperature that has been linked to the large-scale volcanism of the Wrangellia large igneous province. The climatic changes coincide with a major biological turnover on land that included the ascent of the dinosaurs and the origin of modern conifers. However, linking the disparate cause and effects of the CPE has yet to be achieved because of the lack of a detailed terrestrial record of these events. Here, we present a multidisciplinary record of volcanism and environmental change from an expanded Carnian lake succession of the Jiyuan Basin, North China. New U–Pb zircon dating, high-resolution chemostratigraphy, and palynological and sedimentological data reveal that terrestrial conditions in the region were in remarkable lockstep with the large-scale volcanism. Using the sedimentary mercury record as a proxy for eruptions reveals four discrete episodes during the CPE interval (ca. 234.0 to 232.4 Ma). Each eruptive phase correlated with large, negative C isotope excursions and major climatic changes to more humid conditions (marked by increased importance of hygrophytic plants), lake expansion, and eutrophication. Our results show that large igneous province eruptions can occur in multiple, discrete pulses, rather than showing a simple acme-and-decline history, and demonstrate their powerful ability to alter the global C cycle, cause climate change, and drive macro-evolution, at least in the Triassic. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Carnian Pluvial Episode; Climate change; Large igneous province; Triassic; Volcanism
语种	英语
scopus关键词	carbon 13; lead; mercury; uranium; zirconium; Article; carbon cycle; China; climate change; ecosystem; environmental change; eutrophication; evolution; humidity; hydrophyte; lake; nonhuman; plant; river basin; sediment; Triassic; volcano
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/238356
作者单位	State Key Laboratory of Coal Resources and Safe Mining, College of Geoscience and Surveying Engineering, China University of Mining and Technology, Beijing, 100083, China; State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, China; Research Institute of Petroleum Exploration and Development, PetroChina, Beijing, 100083, China; School of Earth and Environment, University of Leeds, Leeds, LS2 9JT, United Kingdom; School of Geography, Earth, and Environmental Sciences, University of Birmingham, Birmingham, B15 2TT, United Kingdom; Key Laboratory of Oil and Gas Reservoir, China National Petroleum Corporation, Beijing, 100083, China
推荐引用方式 GB/T 7714	Lu J.,Zhang P.,Corso J.D.,et al. Volcanically driven lacustrine ecosystem changes during the Carnian Pluvial Episode (Late Triassic)[J],2021,118(40).
APA	Lu J..,Zhang P..,Corso J.D..,Yang M..,Wignall P.B..,...&Hilton J..(2021).Volcanically driven lacustrine ecosystem changes during the Carnian Pluvial Episode (Late Triassic).Proceedings of the National Academy of Sciences of the United States of America,118(40).
MLA	Lu J.,et al."Volcanically driven lacustrine ecosystem changes during the Carnian Pluvial Episode (Late Triassic)".Proceedings of the National Academy of Sciences of the United States of America 118.40(2021).