Hydrous High Pressure Minerals and Glasses

含水高压矿物和玻璃

• 批准号: 8916004
• 负责人: Paul McMillan
• 金额: $ 24万
• 依托单位: Arizona State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-02-15 至 1993-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8916004&HistoricalAwards=false
• 关键词: Hydrous; Pressure; Minerals; Glasses

This study will continue work begun on a previous grant on the vibrational properties of silicate minerals and related systems. Infrared and Raman spectroscopy will be used, coupled with solid state nuclear magnetic resonance (NMR) spectroscopy and ab initio molecular orbital calculations, to study the structures and thermodynamic properties of high pressure hydrated silicate minerals, the mechanism and composition dependence of water solubility in aluminosilicate melts, and pressure-dependent coordination changes of Si and Al in aluminosilicate melts and glasses. This will further the understanding of and the capability of modelling of a broad range of earth materials.

这项研究将继续开展先前资助的关于硅酸盐矿物和相关系统振动特性的工作。 将利用红外光谱和拉曼光谱，结合固态核磁共振（NMR）光谱和从头算分子轨道计算，研究高压水合硅酸盐矿物的结构和热力学性质、铝硅酸盐熔体中水溶性的机理和成分依赖性以及硅铝酸盐中Si和Al的压力依赖性配位变化 融化和玻璃。 这将进一步加深对各种地球材料的理解和建模能力。