DOI: 10.1016/j.epsl.2019.115987
论文题名: High water solubility of ringwoodite at mantle transition zone temperature
作者: Fei H. ; Katsura T.
刊名: Earth and Planetary Science Letters
ISSN: 0012821X
出版年: 2020
卷: 531 语种: 英语
中文关键词: H2O solubility
; mantle transition zone
; ringwoodite
英文关键词: Iron
; Reservoirs (water)
; Silica
; Bearing systems
; Earth's interior
; High water
; Laboratory experiments
; Mantle transition zone
; Natural waters
; Ringwoodite
; Solubility
英文摘要: The mantle transition zone, a potential water reservoir in the Earth's interior, is suggested to contain more than 1 wt.% of H2O, at least locally, by the natural water-rich ringwoodite inclusion (Pearson et al., 2014) and the mineral viscosity (Fei et al., 2017). It is against the low H2O solubility of ringwoodite (<0.3 wt.%) at mantle transition zone temperature based on laboratory experiments (Ohtani et al., 2000). We revisited the H2O solubility in ringwoodite at 1600-2000 K, showing that both iron-free and iron-bearing ringwoodite can store about 0.8-1.2 wt.% of H2O under mantle transition zone conditions. Temperature has a relatively small effect on the H2O solubility in iron-bearing system, but much larger in iron-free one. The high H2O solubility of ringwoodite is compatible with the water-rich mantle transition zone. The relatively low values reported previously is probably due to insufficient H2O source or unbuffered by SiO2. © 2019 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/164957
Appears in Collections: 气候变化与战略
There are no files associated with this item.
作者单位: Bayerisches Geoinstitut, University of Bayreuth, Bayreuth, D95440, Germany; Center for High Pressure Science and Technology Advanced Research, Beijing, 100094, China
Recommended Citation:
Fei H.,Katsura T.. High water solubility of ringwoodite at mantle transition zone temperature[J]. Earth and Planetary Science Letters,2020-01-01,531