气候变化领域集成服务门户(CCPortal): Materials and pathways of the organic carbon cycle through time

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DOI	10.1038/s41561-020-0563-8
	Materials and pathways of the organic carbon cycle through time
	Galvez M.E.; Fischer W.W.; Jaccard S.L.; Eglinton T.I.
发表日期	2020
ISSN	17520894
起始页码	535
结束页码	546
卷号	13 期号:8
英文摘要	The cycle of organic carbon through the atmosphere, oceans, continents and mantle reservoirs is a hallmark of Earth. Over geological time, chemical exchanges between those reservoirs have produced a diversity of reduced carbon materials that differ in their molecular structures and reactivity. This reactive complexity challenges the canonical dichotomy between the surface and deep, short-term and long-term organic carbon cycle. Old and refractory carbon materials are not confined to the lithosphere but are ubiquitous in the surface environment, and the lithosphere hosts various forms of reduced carbon that can be very reactive. The biological and geological pathways that drive the organic carbon cycle have changed through time; from a synthesis of these changes, it emerges that although a biosphere is required to produce organic carbon, mortality is required to ensure its export to the lithosphere, and graphitization is essential for its long-term stabilization in the solid Earth. Among the by-products of the organic carbon cycle are the accumulation of a massive lithospheric reservoir of organic carbon, the accumulation of dioxygen in the atmosphere and the rise of a terrestrial biosphere. Besides driving surface weathering reactions, free dioxygen has allowed the evolution of new metabolic pathways to produce and respire organic carbon. From the evolution of photosynthesis until the expansion of biomineralization in the Phanerozoic, inorganic controls on the organic carbon cycle have diversified, tightening the connection between the biosphere and geosphere. © 2020, Springer Nature Limited.
英文关键词	biomineralization; biosphere; canonical analysis; carbon cycle; complexity; lithosphere; mantle source; organic carbon; photosynthesis
语种	英语
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/206775
作者单位	Institute of Geochemistry and Petrology, Department of Earth Sciences, Swiss Federal Institute of Technology, Zurich, Switzerland; The Branco Weiss Fellowship – Society in Science, Swiss Federal Institute of Technology, Zurich, Switzerland; Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA, United States; Institute of Geological Science and Oeschger Center for Climate Change Research, University of Bern, Bern, Switzerland; Geological Institute, Department of Earth Sciences, Swiss Federal Institute of Technology, Zurich, Switzerland
推荐引用方式 GB/T 7714	Galvez M.E.,Fischer W.W.,Jaccard S.L.,et al. Materials and pathways of the organic carbon cycle through time[J],2020,13(8).
APA	Galvez M.E.,Fischer W.W.,Jaccard S.L.,&Eglinton T.I..(2020).Materials and pathways of the organic carbon cycle through time.Nature Geoscience,13(8).
MLA	Galvez M.E.,et al."Materials and pathways of the organic carbon cycle through time".Nature Geoscience 13.8(2020).