高圧下における鉱物-マグマ間の元素分配
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- 鈴木 敏弘
- 学習院大学理学部化学科
書誌事項
- タイトル別名
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- Element Partitioning between Minerals and Magma under High Pressure
抄録
Element partitioning between minerals and silicate melt has been investigated at pressures 1-17 GPa, by using 6-8 type multi anvil high pressure apparatus. The observed partition coefficients, D, were plotted on partition coefficient-ionic radius (PC-IR) diagram. In the case of olivine/silicate melt system, Partition coefficient of most of the elements gradually decreased with increasing pressure. However, DAI increased with increase in pressure, and this result may be suggesting that DAI may depend on the composition of coexisting silicate melt. The D-profile appeared in PC-IR diagram of magnesiowustite and anhydrous phase-B shows a peak at around 60-70 pm. Although small differences were found among the D-profile of majorite, Fe-rich garnet and Ca-rich garnet, their D-profies resemble each other, and the fundamental characteristic of D-profile must be the same among these garnets. Partition coefficients of large sized ions, such as Ca and La, were large in merwinite and Ca-perovskite. A peak of D-profile was expected at around 90-100 pm in these minerals, and large sized ions must be incorporated in these minerals.
収録刊行物
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- 火山
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火山 42 (Special), S259-S266, 1997
特定非営利活動法人 日本火山学会
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詳細情報 詳細情報について
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- CRID
- 1390282679280605440
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- NII論文ID
- 110003041118
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- ISSN
- 21897182
- 04534360
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可