X-Ray Fluorescence Spectrometry :Inter-and Intra-Applications as Applied to the Geosciences and Social Sciences

地理和地质学系采用了多色散X射线荧光光谱仪来教授实验室课程。将这种光谱仪用于地球科学和社会科学课程，提高了质量控制分析（Price和Ellis，1996年）。 地球化学技术在本科地球科学课程改革中的应用为学生提供了探索地球物理过程与地理学、人类学和考古学重要人文要素之间关系的机会。 这些地球化学技术被设计和应用于解释性的问题解决练习，在学生自己感兴趣的学术领域，如文化传播，文化整合和文化生态。 MDXRF还用于加强地质学专业的实验室教学，并为需要地球化学数据的学生研究提供更多机会。 我们已经实施了这些学习技术，使用地球化学仪器，引入基于探究的解决问题的经验。学生能够了解地球物理过程对人类发展的影响，以及科学研究在理解地球与人类之间的物理关系方面的必要性。MDX 1000使用能量色散（艾德）和波长色散（WD）技术，将经典的WD和艾德技术与低成本分析相结合，可以在各种样品介质（包括液体、玻璃、颗粒、金属、纸和粉末。 学生准备样品并进行矿石成分，精炼和金属提取技术的XRF分析;基岩和土壤类型;并进行地球化学，岩石学和土壤科学的研究。

The Department of Geography and Geology has adapted a multi-dispersive x-ray fluorescence (MDXRF) spectrometer to teach laboratory-based courses. Adapting this spectrometer to courses in geosciences and social sciences has increased quality control analysis (Price and Ellis, 1996). The application of geochemical techniques in modifying undergraduate earth science curriculum has provided students with the opportunity to explore relationships between physical earth processes and important human elements of geography, anthropology and archeology. These geochemical techniques are designed and applied to investigatory problem-solving exercises in the students' own academic fields of interest in such areas as cultural diffusion, cultural integration, and cultural ecology. The MDXRF also is used to enhance laboratory instruction for geology majors and enhances opportunities for student research requiring geochemical data. We have implemented these learning techniques using geochemical instrumentation to introduce inquiry-based problem solving experiences. The students are able to develop an understanding about the affect of physical earth processes on human development and the necessity of scientific investigation in understanding physical earth-human relationships.The MDX 1000 uses both energy dispersive (ED) and wavelength dispersive (WD) techniques combining classical WD and ED techniques with low-cost analyses that can be conducted on a variety of sample mediums, including liquids, glasses, granules, metals, papers and powders. Students prepare samples and conduct XRF analyses of ore composition, refinement and metal extraction techniques; of bedrock and soil types; and conduct research in geochemistry, petrology, and soil science.