气候变化领域集成服务门户(CCPortal): Methanogenesis sustained by sulfide weathering during the Great Oxidation Event

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DOI	10.1038/s41561-019-0320-z
	Methanogenesis sustained by sulfide weathering during the Great Oxidation Event
	Wang S.-J.; Rudnick R.L.; Gaschnig R.M.; Wang H.; Wasylenki L.E.
发表日期	2019
ISSN	17520894
卷号	12 期号:4
英文摘要	The Great Oxidation Event following the end of the Archaean eon (~2.4 Ga) was a profound turning point in the history of Earth and life, but the relative importance of various contributing factors remains an intriguing puzzle. Controls on methane flux to the atmosphere were of particular consequence; too much methane would have inhibited a persistent rise of O2, but too little may have plunged Earth into severe and prolonged ice ages. Here, we document a shift in the weathering reactions controlling the ocean-bound flux of nickel—an essential micronutrient for the organisms that produced methane in Precambrian oceans—by applying Ni stable isotope analysis to Mesoarchaean and Palaeoproterozoic glacial sediments. Although Ni flux to the ocean dropped dramatically as Ni content of the continental crust decreased, the onset of sulfide weathering delivered a small, but vital, flux of Ni to the oceans, sustaining sufficient methane production to prevent a permanent icehouse, while allowing O2 to rise. © 2019, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
scopus关键词	Archean; continental crust; early Earth; isotopic composition; methane; nickel; oxidation; Precambrian; Precambrian-Cambrian boundary; stable isotope; sulfide; trace element
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/124696
作者单位	State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Beijing, China; Department of Earth Science, University of California, Santa Barbara, CA, United States; Earth Research Institute, University of California, Santa Barbara, CA, United States; Department of Geology, University of Maryland, College Park, MD, United States; Department of Environmental, Earth and Atmospheric Sciences, University of Massachusetts Lowell, Lowell, MA, United States; State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China; School of Earth and Sustainability, Northern Arizona University, Flagstaff, AZ, United States; Department of Chemistry and Biochemistry, Northern Arizona University, Flagstaff, AZ, United States
推荐引用方式 GB/T 7714	Wang S.-J.,Rudnick R.L.,Gaschnig R.M.,et al. Methanogenesis sustained by sulfide weathering during the Great Oxidation Event[J],2019,12(4).
APA	Wang S.-J.,Rudnick R.L.,Gaschnig R.M.,Wang H.,&Wasylenki L.E..(2019).Methanogenesis sustained by sulfide weathering during the Great Oxidation Event.Nature Geoscience,12(4).
MLA	Wang S.-J.,et al."Methanogenesis sustained by sulfide weathering during the Great Oxidation Event".Nature Geoscience 12.4(2019).