| タイトル | High pressure-temperature electrical conductivity of magnesiowustite as a function of iron oxide concentration |
| 著者（英） | Jeanloz, Raymond; Li, Xiaoyuan |
| 著者所属（英） | California Univ. |
| 発行日 | 1990-12-10 |
| 言語 | eng |
| 内容記述 | The electrical conductivity of (Mg, Fe)O magnesiowustite containing 9 and 27.5 mol pct FeO has been measured at simultaneously high pressures (30-32 GPa) and temperatures using a diamond anvil cell heated with a continuous wave Nd:YAG laser and an external resistance heater. The conductivity depends strongly on the FeO concentration at both ambient and high pressures. At the pressures and temperatures of about 30 GPa and 2000 K, conditions expected in the lower mantle, the magnesiowustite containing 27.5 percent FeO is 3 orders of magnitude more conductive than that containing 9 percent FeO. The activation energy of magnesiowustite decreases with increasing iron concentration from 0.38 (+ or - 0.09) eV at 9 percent FeO to 0.29 (+ or - 0.05) eV at 27.5 percent FeO. |
| NASA分類 | GEOPHYSICS |
| レポートNO | 91A18606 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/351293 |
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