Experimental partitioning of uranium between liquid iron sulfide and liquid silicate: Implications for radioactivity in the Earth's core

Kevin T. Wheeler, David Walker, Yingwei Fei, William G. Minarik, William F. McDonough

研究成果: Article査読

43 被引用数 (Scopus)

抄録

Measurable uranium (U) is found in metal sulfide liquids in equilibrium with molten silicate at conditions appropriate for a planetary magma ocean: 1-10 GPa, 1750-2100 °C, 0-28 wt% S, and fO2 2 log units below IW. However, the transfer of U from metal sulfide to silicate under our experimental conditions is so complete that insufficient U would remain so as to be of any importance to the core's heat budget. U content in the sulfide phase increases strongly with S content but shows no significant variability with either pressure or temperature. Maximum DUsulfide/silicate is 0.001 while most values are considerably lower.

本文言語English
ページ(範囲)1537-1547
ページ数11
ジャーナルGeochimica et Cosmochimica Acta
70
6
DOI
出版ステータスPublished - 2006 3月 15
外部発表はい

ASJC Scopus subject areas

  • 地球化学および岩石学

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