Composition of the core, I. Solubility of oxygen in molten iron at high temperatures

E. Ohtani, A. E. Ringwood

研究成果: Article査読

54 被引用数 (Scopus)

抄録

Experiments on the solubility of FeO in molten iron have been carried out at temperatures between 2100 and 2550°C. The results show that liquid FeO is extensively soluble in molten iron at 2500°C and indicate that they probably become completely miscible above 2800°C. Liquid iron in equilibrium with crystalline magnesiowüstite (Mg0.8Fe0.2)O which is believed to be an important mineral in the lower mantle, would dissolve about 14 mol.% of FeO at 2500°C and 40 mol.% of FeO at 2800°C. The geochemical implications of these results are discussed. It is concluded that the outer core probably contains a large amount of dissolved FeO and that oxygen is probably the principal light element in the outer core.

本文言語English
ページ(範囲)85-93
ページ数9
ジャーナルEarth and Planetary Science Letters
71
1
DOI
出版ステータスPublished - 1984 11月

ASJC Scopus subject areas

  • 地球物理学
  • 地球化学および岩石学
  • 地球惑星科学(その他)
  • 宇宙惑星科学

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