特集：「軽元素を含む地球惑星物質の高圧挙動」
マントル深部における水を含む鉱物の高圧挙動
キーワード:
multi-anvil apparatus,
diamond anvil cell,
deep water cycle,
hydrous phase,
nominally anhydrous minerals
2025 年 35 巻 3 号 p. 118-126
詳細
2025 年 35 巻 3 号 p. 118-126
It is important to determine the stability of water-bearing minerals at high pressure and high temperature in order to accurately understand the water transport processes in the Earth’s deep mantle. In this article, previous experimental studies and our recent works on the stability of water-bearing minerals under high pressures and high temperatures, were reviewed. We clarified the high-temperature phase relations of hydrous aluminosilicates and the stability of hydrous SiO2 stishovite by experimental techniques using multi-anvil apparatus. Based on these results, deep water transportation into the lower mantle were discussed.
