Geochemical Analysis across the Geology Curriculum and in Related Courses in Chemistry and Environmental Studies

地质学课程以及化学和环境研究相关课程中的地球化学分析

• 批准号: 0087860
• 负责人: Timothy Allen
• 金额: $ 12.01万
• 依托单位: Keene State College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-06-15 至 2005-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0087860&HistoricalAwards=false
• 关键词: Geochemical; Analysis; across; Geology; Curriculum

Geology (42)While qualitative field-based observation remains fundamental to the science of Geology, a more complete understanding of the earth system and its processes, as well as related environmental problems, requires a multi-disciplinary approach including the collection, interpretation, and application of quantitative geochemical data. Students in Geology and Environmental Studies are able to undertake major and trace element analyses of, and explore compositional relationships in, solid rock, mineral, sediment and soil samples by using an automated Wavelength Dispersive X-Ray Fluorescence Spectrometer with element mapping and spot analysis capabilities, along with associated sample preparation equipment. Adapting exemplary models from Albion College, Dickinson College, Furman University, and Middle Tennessee State University, and from the literature, we are incorporating inquiry-based exercises using these analytical techniques into courses in Physical Geology, Mineralogy, Petrology, Environmental Geology, Geochemistry, and Chemical Analysis of the Environment. In so doing, we are (1) increasing the involvement of our students in the process of modern scientific investigation, with progressive preparation for independent and student-faculty cooperative research through Independent/Directed Study and the Environmental Studies Senior Seminar; and (2) enhancing student understanding of fundamental relationships between chemical composition, mineralogy, rock-type, tectonic setting, and global biogeochemical cycling. An important component of our project is site visits by a team of experienced external evaluators, providing information exchange and assistance in formative and summative evaluation.

虽然定性的实地观察仍然是地质科学的基础，但更全面地了解地球系统及其过程以及相关的环境问题，需要多学科的方法，包括收集，解释和应用定量地球化学数据。地质学和环境研究的学生能够进行主要和微量元素分析，并探索固体岩石，矿物，沉积物和土壤样品的成分关系，通过使用自动化波长色散X射线荧光光谱仪，具有元素绘图和现场分析能力，沿着相关的样品制备设备。适应典型的模型，从阿尔比恩学院，迪金森学院，弗曼大学，中田纳西州立大学，并从文献中，我们将调查为基础的练习，使用这些分析技术到课程中的物理地质学，矿物学，岩石学，环境地质学，地球化学和环境的化学分析。在这样做，我们是（1）增加我们的学生在现代科学调查的过程中的参与，通过独立/指导研究和环境研究高级研讨会独立和师生合作研究的逐步准备;和（2）提高化学成分，矿物学，岩石类型，构造环境和全球地球化学循环之间的基本关系的学生的理解。我们项目的一个重要组成部分是由一组经验丰富的外部评估人员进行实地访问，在形成性和总结性评估中提供信息交流和援助。