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DOI	10.1038/s41561-022-01009-x
	Persistent late permian to early triassic warmth linked to enhanced reverse weathering
	Cao, Cheng; Bataille, Clement P.; Song, Haijun; Saltzman, Matthew R.; Cramer, Kate Tierney; Wu, Huaichun; Korte, Christoph; Zhang, Zhaofeng; Liu, Xiao-Ming
发表日期	2022
ISSN	1752-0894
EISSN	1752-0908
起始页码	832
结束页码	+
卷号	15 期号:10 页码:11
英文摘要	In the Precambrian, reverse weathering-a process consuming oceanic silica, metal cations and alkalinity to form marine clays-was a key control of the long-term carbon cycle. However, the appearance of marine silicifiers decreased the importance of this process in regulating climate in the Phanerozoic eon. Here, we present seawater lithium and strontium isotope records derived from bulk carbonates and fossil brachiopods spanning the Permian to Early Triassic, an interval of pronounced climatic fluctuations and widespread extinctions. We show that the lithium isotope composition of seawater remained constant for most of the Permian until a sharp decrease in the Late Permian (similar to 254 Myr ago) with low seawater Li isotope values (similar to 10 parts per thousand) persisting throughout the Early Triassic. Based on box modelling, changes in chemical weathering and hydrothermal fluxes are unable to explain the abrupt decline in seawater Li isotopes. Rather, increased lithium output fluxes through enhanced reverse weathering are required to produce the low Li isotope values of the Late Permian and Early Triassic (253-247 Myr ago). Increased reverse weathering rates could explain the failure of chemical weathering to draw down atmospheric CO2 levels during the Early Triassic, leading to protracted biotic recovery from the Permian-Triassic mass extinction.
学科领域	Geosciences, Multidisciplinary
语种	英语
WOS研究方向	Geology
WOS记录号	WOS:000865214900009
来源期刊	NATURE GEOSCIENCE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/272602
作者单位	University of North Carolina; University of North Carolina Chapel Hill; Nanjing University; University of Ottawa; China University of Geosciences; University System of Ohio; Ohio State University; University of Iowa; China University of Geosciences; China University of Geosciences; University of Copenhagen; Chengdu University of Technology
推荐引用方式 GB/T 7714	Cao, Cheng,Bataille, Clement P.,Song, Haijun,et al. Persistent late permian to early triassic warmth linked to enhanced reverse weathering[J],2022,15(10):11.
APA	Cao, Cheng.,Bataille, Clement P..,Song, Haijun.,Saltzman, Matthew R..,Cramer, Kate Tierney.,...&Liu, Xiao-Ming.(2022).Persistent late permian to early triassic warmth linked to enhanced reverse weathering.NATURE GEOSCIENCE,15(10),11.
MLA	Cao, Cheng,et al."Persistent late permian to early triassic warmth linked to enhanced reverse weathering".NATURE GEOSCIENCE 15.10(2022):11.