Tools for Teaching Undergraduate Geophysics in the Field and Laboratory

小行星9351877 对于地质学本科生来说，勘探物理学是抽象而困难的。 正在编制一门地球物理方法的新课程，在实地讲授，针对适合大学生研究的地方问题。 该课程正在纳入五个系统：1）便携式12通道地震仪，2）用于磁化率，总场和垂直梯度测量的磁性设备，3）用于近地表电导率测绘的电磁感应系统，4）将我们的重力工作扩展到周围山脉的全球定位系统，及5）一部通用MS/DOS电脑，并备有绘图软件，方便分析及显示数据。 在课程中还使用了电阻率设备、重力仪、现场计算机以及建模和解释软件。 所有的设备也被用于高级论文研究，重力、磁力和地震设备被整合到实验室，用于地质学导论的荣誉课程。 水物理学方法课程的重点是对米苏拉含水层进行水化学特征描述，这是米苏拉饮用水的唯一来源。含水层由克拉克福克河补充，该河是美国最大的环保署超级基金网站。 重要的地下水和地球化学研究集中在污染物、水质和水丰度问题上。地球物理学研究对这项研究大有助益;地质学上对含水层知之甚少。 这种情况提供了一个很好的自然实验室，以获得对公众重要的数据，并为长期研究项目提供足够的范围，并在专业文献中传播。

9351877 Sheriff For undergraduate geology students exploration geophysics can be abstract and difficult. A new course in geophysical methods, taught in the field and directed towards local problems suitable for undergraduate research, is being developed. Five systems are being incorporated into the course: 1) a portable 12 channel seismograph, 2) magnetic equipment for susceptibility, total field and vertical gradient measurements, 3) an electromagnetic induction system for near surface conductivity mapping, 4) a global positioning system to extend our gravity work into the surrounding mountains, and 5) a generic MS/DOS computer with graphics software to facilitate data analysis and presentation. Electrical resistivity equipment, a gravimeter, a field computer, and modeling and interpretation software also are being used in the course. All of the equipment also is being used for senior thesis research, and the gravity, magnetic and seismic equipment is being integrated into labs for the honors course in introductory geology. The focus of the geophysics methods course is to geophysically characterize the Missoula aquifer which is the sole source of Missoula's drinking water. The aquifer is recharged by the Clark Fork River which drains the nation's largest collection of EPA superfund sites. Significant ground water and geochemical research has focussed on contaminant, water quality, and water abundance problems. Geophysical studies are greatly benefitting this research; geophysically the aquifer is poorly known. This situation is providing an excellent natural laboratory for obtaining data that is publicly important and of ample scope for a long term research project and for dissemination in the professional literature.