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DOI	10.1016/j.epsl.2021.116755
	Independent hydrogen incorporation in wadsleyite from oxygen fugacity and non-dissociation of H2O in the reducing mantle transition zone
	Druzhbin D.; Fei H.; Katsura T.
发表日期	2021
ISSN	0012821X
卷号	557
英文摘要	The mantle transition zone is considered as a potential water reservoir in the Earth's interior because of the high H2O solubility in wadsleyite and ringwoodite. However, this scenario is based on experiments performed under relatively oxidized conditions. In order to constrain the H2O solubility in minerals in the reducing (close to iron-wüstite buffer) mantle transition zone, here we systematically measured the water content in wadsleyite at 17 GPa and 1673 K, as a function of oxygen fugacity in the range of Hf-HfO2, Mo-MoO2, Re-ReO2, and Pt-PtO2 buffer conditions. The results suggest that the oxygen fugacity has no meaningful effect on H2O solubility in wadsleyite. Wadsleyite in the mantle transition zone can store as much as ∼1.0 wt.% H2O in spite of the reducing conditions. The dissociation of H2O into H2 and O2 is negligible, namely, there should be negligible molecular H2 in the mantle transition zone. © 2021 Elsevier B.V.
关键词	mantle transition zone oxygen fugacity wadsleyite water solubility
英文关键词	Dissociation; Hafnium oxides; Hydrogen; Molybdenum oxide; Oxygen; Reservoirs (water); Rhenium compounds; Solubility; Earth's interior; Hydrogen incorporation; Mantle transition zone; Oxygen fugacity; Reducing conditions; Ringwoodite; Wadsleyite; Platinum compounds; fugacity; hydrogen; mantle; oxygen; solubility; transition zone; wadsleyite; water content
语种	英语
来源期刊	Earth and Planetary Science Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/203075
作者单位	Bayerisches Geoinstitut, Universität Bayreuth, Bayreuth, D95440, Germany; Center for High Pressure Science and Technology Advanced Research, Beijing, 100097, China
推荐引用方式 GB/T 7714	Druzhbin D.,Fei H.,Katsura T.. Independent hydrogen incorporation in wadsleyite from oxygen fugacity and non-dissociation of H2O in the reducing mantle transition zone[J],2021,557.
APA	Druzhbin D.,Fei H.,&Katsura T..(2021).Independent hydrogen incorporation in wadsleyite from oxygen fugacity and non-dissociation of H2O in the reducing mantle transition zone.Earth and Planetary Science Letters,557.
MLA	Druzhbin D.,et al."Independent hydrogen incorporation in wadsleyite from oxygen fugacity and non-dissociation of H2O in the reducing mantle transition zone".Earth and Planetary Science Letters 557(2021).