Cation and Anion Ordering in Calcium Phosphate Apatites

磷酸钙磷灰石中的阳离子和阴离子排序

• 批准号: 8916305
• 负责人: John Hughes
• 金额: --
• 依托单位: Miami University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-12-01 至 1993-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8916305&HistoricalAwards=false
• 关键词: Cation; Anion; Ordering; Calcium; Phosphate

The calcium phosphate apatites are found in igneous, metamorphic, and sedimentary rocks. Interest among geologists in these minerals has increased in recent years, especially as indicators of geologic environment. Recent investigations by the P.I.'s indicate that many aspects of the crystal structures of natural apatites are not well understood. The studies proposed are intended to elucidate the crystal structures of natural apatites. They will emphasize naturally-occurring apatites, whose chemistry falls within ranges of interest to geologists, and the resultant data will complement that already available in the published literature. The proposed research should be important to geologists who use thermodynamics, partitioning, diffusion and annealing properties of apatite minerals to gain insight into geologic processes.

磷酸钙磷灰石存在于火成岩、变质岩和沉积岩中。 近年来，地质学家对这些矿物的兴趣有所增加，特别是作为地质环境的指标。 P.I. 最近的研究表明，天然磷灰石晶体结构的许多方面尚不清楚。 所提出的研究旨在阐明天然磷灰石的晶体结构。 他们将重点关注天然存在的磷灰石，其化学性质属于地质学家感兴趣的范围，所得数据将补充已发表文献中已有的数据。 拟议的研究对于利用磷灰石矿物的热力学、分配、扩散和退火特性来深入了解地质过程的地质学家来说应该很重要。