Geophysical and GPS Equipment for Inquiry-Oriented, Integrated Laboratories in Introductory Geology, GroundwaterGeology and Environmental Geophysics

地质系正在彻底改造入门地质学实验室，并协调地下水地质学和环境地球物理学实验室，以提供一系列综合的、以探究为导向的、以实地为基础的经验，解决相互关联的、当地的地质问题，并强调需要多学科方法。这些实验室的重点是当地的地质和环境问题，该地区的供水依赖于承压含水层。这些水受到农业农药和工业废物的不同程度的污染。购买具有改进的数据采集和数字数据传输能力的现代设备，可以在课程实验室中承担有意义的问题，甚至在入门级。介绍性地质学实验室包括用于确定含水层厚度的折射地震调查，用于继续监测渗滤液柱的电阻率调查，用于寻找潜在污染源的旧工业场所的磁梯度调查，用于测量观测井中的水位以绘制潜在表面，以及用于评估地下水移动速率的含水层透水性和储存性的测定。地下水地质学和环境地球物理学的联合实验室补充了这项工作，从而建立在介绍性经验的基础上。其他活动包括地震反射剖面，绘制沉积物地层学和先进的地下水分析，以评估可能的羽流迁移路径。GPS信息以及所有课程的所有现场数据可以添加到一个广泛的GIS数据库中，用于制作和评估衍生地图，供学生评估。

The geology department is completely revamping laboratories in introductory geology and coordinating laboratories in groundwater geology and environmental geophysics to provide a series of integrated, inquiry-oriented, field-based experiences addressing interrelated, local geological problems and stressing the need for multidisciplinary approaches. These laboratories focus on the geology and environmental problems of the local area, which depends on a confined aquifer for its water supply. Contamination of this water by agricultural pesticides and industrial waste has occurred to varying degrees. Purchase of modern equipment with improved data acquisition and digital data-transfer capabilities makes it possible to undertake meaningful problems during course laboratories, even at the introductory level. Introductory geology laboratories include a refraction seismic survey to define aquifer thickness, a resistivity survey to continue monitoring a leachate plume, a magnetic gradiometer survey of old industrial sites to search for potential contamination sources, measurement of water levels in observation wells to map the potentiometric surface, and determination of aquifer transmissivity and storativity to assess groundwater movement rates. Combined laboratories in groundwater geology and environmental geophysics complement this effort, thereby building on the introductory experience. Additional activities include seismic reflection profiling to map sediment stratigraphy and advanced groundwater analysis to assess possible plume migration paths. GPS information together with all field data from all courses can be added to an extensive GIS database for production and evaluation of derivative maps that students evaluate.