气候变化领域集成服务门户(CCPortal): Global warming leads to Early Triassic nutrient stress across northern Pangea

CCPortal

DOI	10.1130/B32036.1
	Global warming leads to Early Triassic nutrient stress across northern Pangea
	Grasby S.E.; Knies J.; Beauchamp B.; Bond D.P.G.; Wignall P.; Sun Y.
发表日期	2020
ISSN	167606
起始页码	943
结束页码	954
卷号	132 期号:2021-05-06
英文摘要	The largest extinction in Earth history, in the latest Permian, was followed throughout most of the Early Triassic by a prolonged period of ecologic recovery. What factors delayed biotic recovery are still under debate and partly revolve around impacts of global warming on primary marine productivity. We examined N isotope records from the Festningen section on Spitsbergen, Arctic Norway, to examine changes in nutrient availability through the Early to Middle Triassic along the northern margin of Pangea. Our results show progressive decline in N availability throughout the Griesbachian, leading to severe nutrient limitations through the remainder of the Early Triassic, until returning to a highly productive continental margin in Middle Triassic time. These results are consistent with other studies from northern and western Pangea and thus show regional nutrient limitations occurred in what should have been the main zone of marine primary productivity. Such nutrient limitation likely stressed primary production and consequently contributed to prolonged marine recovery. We suggest this was driven by high ocean temperatures depressing the marine nutricline. © 2019 Geological Society of America.
语种	英语
来源期刊	Bulletin of the Geological Society of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/184790
作者单位	Geological Survey of Canada, 3303 33 Street NW, Calgary, AB T2L 2A7, Canada; Department of Geoscience, University of Calgary, 2500 University Drive NW, Calgary, AB T2N 1N4, Canada; Geological Survey of Norway, Trondheim, 7491, Norway; Centre for Arctic Gas Hydrate, Environment and Climate, Department of Geology, University of Tromsø, The Arctic University of Norway, Tromsø, 9037, Norway; Department of Geography, Environment and Earth Sciences, University of Hull, Hull, HU6 7RX, United Kingdom; School of Earth Sciences, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, United Kingdom; GeoZentrum Nordbayern, Universität Erlangen-Nürnberg, Schlossgarten 5, Erlangen, 91054, Germany
推荐引用方式 GB/T 7714	Grasby S.E.,Knies J.,Beauchamp B.,et al. Global warming leads to Early Triassic nutrient stress across northern Pangea[J],2020,132(2021-05-06).
APA	Grasby S.E.,Knies J.,Beauchamp B.,Bond D.P.G.,Wignall P.,&Sun Y..(2020).Global warming leads to Early Triassic nutrient stress across northern Pangea.Bulletin of the Geological Society of America,132(2021-05-06).
MLA	Grasby S.E.,et al."Global warming leads to Early Triassic nutrient stress across northern Pangea".Bulletin of the Geological Society of America 132.2021-05-06(2020).