Integrating Environmental Geosciences and Geophysics Instruction by Means of Seismic Refraction and Reflection Capabilities

该项目围绕购买24道地震仪、垂直和水平地震检波器、地震检波器电缆和地震折射解释软件(广义倒数法)展开。通过这些项目，可以在水文地质学教学中引入地球物理成分，以确定含水层的特征和进行盆地分析，并在地球物理教学中引入环境/水文地质成分。一个有两种类型的本科生参与的大型项目，允许各方在实验设计、数据收集、整理和解释方面获得实践经验。利用课堂间的联合实地考察和联合作业课程，每个学生都可以了解项目的范围。第一个项目是在松山俱乐部(Pine Mountain Club)进行的，这是一个位于洛杉矶北部半干旱山区的乡村度假社区，代表着可以完成的目标。该社区位于圣安德烈亚斯断层的痕迹上，从断层泥中生产出稀缺的水供应。该项目不仅侧重于额外供水的标准勘探技术，而且还侧重于描述含水层及其周围的片状基岩的特征。外围项目包括山体滑坡调查。地震反射、折射和横波研究正在与现有的重力、磁力和探地雷达研究以及常规水文地质调查(含水层测试和水化学)一起进行。

This project centers around the purchase of a 24-channel seismic unit, vertical and horizontal geophones, geophone cable, and seismic refraction interpretation software (generalized reciprocal method). These items make possible the introduction of a geophysical component into hydrogeology instruction for aquifer characterization and basin analysis and the introduction of an environmental/hydrogeological component into geophysics instruction. A large project, in which both types of undergraduate student participate, allows all parties to obtain hands-on experience in the design of experiments, data collection, reduction, and interpretation. The use of joint field trips between classes and joint work sessions allow each student to see the scope of the project. The first project, representative of what could be accomplished, is being performed at Pine Mountain Club, a rural resort community in the semi-arid mountainous region north of Los Angeles. The community lies in the trace of the San Andreas fault and produces its scanty water supply from fault gouge. The project not only focuses on standard exploration techniques for additional water supplies, but also on characterization of the aquifer and its enclosing schistose bedrock. Peripheral projects include landslide investigations. Seismic reflection, refraction, and shear wave studies are being undertaken in conjunction with already-available gravity, magnetic, and ground penetrating radar studies and conventional hydrogeological investigations (aquifer testing and water chemistry).