Characterization of Earth Materials

地球材料的表征

• 批准号: 9809752
• 负责人: David Mogk
• 金额: $ 3.42万
• 依托单位: Montana State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-10-01 至 1999-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9809752&HistoricalAwards=false
• 关键词: Characterization; Earth; Materials

MOGK 9809752 Educational modules will be developed which demonstrate the characterization of Earth materials using a variety of modern analytical techniques. Each module will simulate authentic research experiences through presentation of a hierarchy of research-related questions and integrated datasets of images and analytical results will be accessed by students to develop their own tests and interpretations. Each module will include information on the geologic context, capabilities and limitations of analytical techniques, research-related questions, images that range in scale from mesoscopic to atomic embedded analytical results (e.g. X-ray diffraction data, compositional and chemical data, etc.), and links to similar projects that have been reported in the literature. The modules will promote discovery-based learning as students will focus their own observations and choose appropriate tests. Earth materials that will be presented in these modules will include samples from common rock types and soils (representing a variety of Earth processes), materials of interest to industry (e.g., mineral and energy exploration; environmental remediation), and exciting new fields of investigation such as geomicrobiology and the surface chemistry of minerals. The analytical instruments that will be used are housed in the Imaging and Chemical Analysis Laboratory at Montana State University, and include scanning electron microscope equipped with back-scattered electron detector, cathodoluminescence detector with spectrometer, energy dispersive spectrometer, and cryo-preparation stage; X-ray powder diffraction; Auger Electron Spectrometer; X-ray photoelectron spectrometer; Time-of-flight Secondary Ion Mass Spectrometer; and Atomic Force Microscopes. All images and spectra will be digitized and distributed through the WWW. Development of the multi-media educational modules will be done with the assistance of the Burns Telecommunications Center at Montana State University.

MOGK 9809752 将开发教育模块，利用各种现代分析技术演示地球物质的特性。 每个模块将通过呈现与研究相关的问题的层次结构来模拟真实的研究体验，学生将访问图像和分析结果的综合数据集，以开发自己的测试和解释。 每个模块将包括地质背景信息、分析技术的能力和局限性、研究相关问题、从介观到原子嵌入分析结果的图像 (e.g. X射线衍射数据、组成和化学数据等），并链接到文献中报道的类似项目。 这些单元将促进基于发现的学习，因为学生将集中自己的观察，并选择适当的测试。 在这些模块中介绍的地球材料将包括来自常见岩石类型和土壤的样品（代表各种地球过程），工业感兴趣的材料（例如，矿产和能源勘探;环境修复），和令人兴奋的新的研究领域，如地质微生物学和矿物表面化学。 将使用的分析仪器位于蒙大拿州立大学的成像和化学分析实验室，包括配备背散射电子检测器的扫描电子显微镜、阴极发光检测器和光谱仪、能量色散光谱仪和低温制备台; X射线粉末衍射仪;俄歇电子光谱仪; X射线光电子光谱仪;飞行时间二次离子质谱仪;和原子力显微镜 所有的图像和光谱将被数字化，并通过万维网分发。 多媒体教育模块的开发将在伯恩斯电信公司的协助下完成 蒙大拿州立大学中心。