Solid State Geochemistry: High-Resolution Transmission Electron Microscopy of Minerals

固态地球化学：矿物的高分辨率透射电子显微镜

• 批准号: 8708529
• 负责人: Peter Buseck
• 金额: $ 65.44万
• 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: 1988
• 资助国家: 美国
• 起止时间: 1988-04-01 至 1993-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8708529&HistoricalAwards=false
• 关键词: Solid; State; Geochemistry; Resolution; Transmission

This represents a continuation of support for research previously funded by NSF grant EAR 8408168 and amendments, involving the use of transmission electron microscopy to study local regions of structural and chemical disorder in minerals. Specific studies include: high- resolution imaging of illite/smectite to determine details of intercalations and ordering, of defects in perovskite synthesised at high pressures, of stacking sequences and disorder in graphite, of interralationships among iron-rich silicates in iron formations, of series of manganese oxides and silicates, and of the nature of gold occurrence in sulfide minerals. Detailed observation of such regions can provide data on chemical and physical properties of the host minerals and can give insights into their origin and history.

这代表了对先前由 NSF 拨款 EAR 8408168 和修正案资助的研究的继续支持，其中涉及使用透射电子显微镜来研究矿物中结构和化学无序的局部区域。 具体研究包括：伊利石/蒙脱石的高分辨率成像，以确定插层和排序的细节、高压合成的钙钛矿中的缺陷、石墨中的堆积顺序和无序、铁地层中富铁硅酸盐之间的相互关系、系列锰氧化物和硅酸盐的研究，以及硫化物矿物中金矿的性质。 对这些区域的详细观察可以提供有关宿主矿物的化学和物理性质的数据，并可以深入了解它们的起源和历史。