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.

这是对先前研究的继续支持。 由NSF拨款资助8408168和修正案，涉及使用 透射电子显微镜研究局部区域的结构 以及矿物中的化学无序。 具体研究包括：高- 伊利石/蒙皂石的分辨率成像，以确定 在合成的钙钛矿中的缺陷的嵌入和排序， 更高的压力，堆叠顺序和无序的石墨， 含铁地层中富铁硅酸盐之间的相互关系， 锰氧化物和硅酸盐系列，具有金的性质 产于硫化物矿物中。 对这些区域的详细观察 可以提供宿主的化学和物理特性数据 矿物，并可以深入了解其起源和历史。