Revitalization of X-Ray Diffractometer for Improved Undergraduate Instruction and Research in Mineralogy and Petrology

X 射线衍射仪的复兴促进矿物学和岩石学本科教学和研究的改进

• 批准号: 9952345
• 负责人: Jonathan Mies
• 金额: $ 4.26万
• 依托单位: University of Tennessee Chattanooga
• 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: 2000-01-15 至 2001-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9952345&HistoricalAwards=false
• 关键词: Revitalization; Ray; Diffractometer; Improved; Undergraduate

Geology (42) With an upgraded X-Ray Diffractometer, equipped with computer-controlled goniometer, digital data operations, and modern safety devices, we have adapted exercises that provide opportunities for students with experience on modern analytical equipment. The experience has increased student understanding of mineralogy and petrology with this more thorough treatment of X-ray crystallography throughout the geology curriculum and provides advanced undergraduate students with greater research opportunities. A one-hour companion course for Mineralogy (GEOL 241) implements substantive use of the revitalized XRD. Interdisciplinary student teams composed of geology majors, education majors, and environmental science majors work through exercises that are adapted from those developed with NSF support (CSI-8750682, USE-9151040, USE-9151549, USE-9251951) by faculty at Alfred University, Carleton College, Indiana University-Purdue University, and Smith College. This provides students with experience in simple phase identification, determining relations between lattice dimensions and crystal chemistry, unit-cell refinement, and characterization of clay minerals. Student use of the XRD in Petrology (GEOL 242), Sedimentary Rocks and Stratigraphy (GEOL 303), Senior Seminar (GEOL 490), and Geologic Field Experience (GEOL 496) has promoted an appreciation of the instrument as a research tool. This project has improved pre-college teachers' content knowledge of minerals and rocks as well as their pedagogical skills. The interdisciplinary approach has ensured interaction between students with different backgrounds and exposed them to the problem-solving approaches used in the sciences.

地质学(42)通过升级的X射线衍射仪，配备计算机控制的测角仪、数字数据操作和现代安全设备，我们调整了练习，为学生提供体验现代分析设备的机会。通过在整个地质学课程中对X射线结晶学进行更全面的处理，该经验增加了学生对矿物学和岩石学的理解，并为高级本科生提供了更多的研究机会。一小时的矿物学配套课程(Geol241)充分利用了重新恢复活力的X射线衍射仪。由地质学专业、教育学专业和环境科学专业的学生组成的跨学科学生团队通过练习进行工作，这些练习是由阿尔弗雷德大学、卡尔顿学院、印第安纳大学-普渡大学和史密斯学院的教职员工根据国家科学基金会支持下开发的练习(CSI-8750682，USE-9151040，USE-9151549，USE-9251951)进行修改的。这为学生提供了简单的物相识别、确定晶格尺寸和晶体化学之间的关系、单胞精炼和粘土矿物表征的经验。学生在岩石学(Geol242)、沉积岩和地层学(Geol303)、高级研讨会(Geol490)和地质实地体验(Geol496)中使用X射线衍射仪，促进了对该仪器作为研究工具的欣赏。该项目提高了大学前教师对矿物和岩石的内容知识和教学技能。跨学科的方法确保了不同背景的学生之间的互动，并使他们接触到科学中使用的解决问题的方法。