کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4706816 1353029 2006 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental partitioning of uranium between liquid iron sulfide and liquid silicate: Implications for radioactivity in the Earth’s core
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات ژئوشیمی و پترولوژی
پیش نمایش صفحه اول مقاله
Experimental partitioning of uranium between liquid iron sulfide and liquid silicate: Implications for radioactivity in the Earth’s core
چکیده انگلیسی

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.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Geochimica et Cosmochimica Acta - Volume 70, Issue 6, 15 March 2006, Pages 1537–1547
نویسندگان
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