SGER: Ultramicrotomy for Petrographic Thin Sections

SGER：岩相薄片超薄切片术

• 批准号: 0071152
• 负责人: Cheryl Young
• 金额: $ 2.48万
• 依托单位: Florida Agricultural and Mechanical University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-04-01 至 2001-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0071152&HistoricalAwards=false
• 关键词: SGER; Ultramicrotomy; Petrographic; Thin; Sections

Ultramicrotomy for Petrographic Thin SectionsCheryl Young: EAR-0071152This project will address the need for standardized sample preparation of rock specimens for study by transmission electron microscopy (TEM); presently there is no universal method of sample preparation. Ultramicrotomy (UM) is widely used for sectioning biological materials and a similar procedure may be applied to geological thin sections. There are several advantages in being able to thin section petrographic slides. Two of these concern preservation of overall particle structure and uniformity of specimen thickness. The former makes it possible to examine textural properties of grain boundaries and interfaces with minimal disturbance to their microstructures and petrography. Using methods of UM it is possible to section a single 10-mm particle into 200 slices with almost complete preservation of internal microstructure in three dimensions. This project will result in the development of ultramictomy methods capable of producing ultrathin sections from petrographic slides. This will broaden the use the use of TEM in petrologic studies.

岩相薄切片超薄切片谢丽尔·杨（Cheryl Young）：EAR-0071152该项目将解决用于透射电子显微镜（TEM）研究的岩石标本标准化样品制备的需求；目前还没有通用的样品制备方法。 超薄切片术 (UM) 广泛用于生物材料切片，类似的程序可应用于地质薄片。 能够对岩相切片进行薄片化有几个优点。 其中两个涉及整体颗粒结构的保存和样品厚度的均匀性。 前者可以在对其微观结构和岩相学干扰最小的情况下检查晶界和界面的纹理特性。 使用 UM 方法可以将单个 10 毫米颗粒切成 200 个切片，并且在三个维度上几乎完全保留内部微观结构。 该项目将开发能够从岩相切片中产生超薄切片的超切片方法。 这将扩大 TEM 在岩石学研究中的应用。