气候变化领域集成服务门户(CCPortal): The kaolinite shuttle links the Great Oxidation and Lomagundi events

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DOI	10.1038/s41467-021-23304-8
	The kaolinite shuttle links the Great Oxidation and Lomagundi events
	Hao W.; Mänd K.; Li Y.; Alessi D.S.; Somelar P.; Moussavou M.; Romashkin A.E.; Lepland A.; Kirsimäe K.; Planavsky N.J.; Konhauser K.O.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	The ~2.22–2.06 Ga Lomagundi Event was the longest positive carbon isotope excursion in Earth’s history and is commonly interpreted to reflect perturbations in continental weathering and the phosphorous cycle. Previous models have focused on mechanisms of increasing phosphorous solubilization during weathering without focusing on transport to the oceans and its dispersion in seawater. Building from new experimental results, here we report kaolinite readily absorbs phosphorous under acidic freshwater conditions, but quantitatively releases phosphorous under seawater conditions where it becomes bioavailable to phytoplankton. The strong likelihood of high weathering intensities and associated high kaolinite content in post-Great-Oxidation-Event paleosols suggests there would have been enhanced phosphorus shuttling from the continents into marine environments. A kaolinite phosphorous shuttle introduces the potential for nonlinearity in the fluxes of phosphorous to the oceans with increases in chemical weathering intensity. © 2021, The Author(s).
语种	英语
scopus关键词	aluminum hydroxide; aluminum oxide; aluminum silicate; ferric hydroxide; ferric oxide; fresh water; kaolin; phosphorus; sea water; acidity; carbon isotope; chemical weathering; kaolin; marine environment; oxidation; paleosol; phosphorite; phosphorus cycle; solubilization; adsorption; Article; bacterial growth; dispersion; nonhuman; nonlinear system; oxidation; phytoplankton; river; sea; solubilization; Synechococcus; weathering; X ray diffraction
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/251443
作者单位	Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, Canada; Department of Geology, University of Tartu, Tartu, Estonia; Department of Geology, University of Science and Technology of Masuku, Franceville, Gabon; Institute of Geology, Karelian Science Centre, Petrozavodsk, Russian Federation; CAGE—Centre for Arctic Gas Hydrate, Environment and Climate, Department of Geosciences, UiT The Arctic University of Norway, Tromsø, Norway; Geological Survey of Norway (NGU), Trondheim, Norway; The Department of Earth and Planetary Sciences, Yale University, New Haven, CT, United States
推荐引用方式 GB/T 7714	Hao W.,Mänd K.,Li Y.,et al. The kaolinite shuttle links the Great Oxidation and Lomagundi events[J],2021,12(1).
APA	Hao W..,Mänd K..,Li Y..,Alessi D.S..,Somelar P..,...&Konhauser K.O..(2021).The kaolinite shuttle links the Great Oxidation and Lomagundi events.Nature Communications,12(1).
MLA	Hao W.,et al."The kaolinite shuttle links the Great Oxidation and Lomagundi events".Nature Communications 12.1(2021).