Geophysical Equipment for an Undergraduate Laboratory in Shallow Subsurface Exploration

科尔盖特大学（Colgate University）在地球物理学课程中开设了一门“动手”实验课程，重点关注浅层地下环境。随着地下水短缺和地下水污染变得越来越普遍，这种调查变得越来越重要。本课程是对高级地球物理学课程的修改，该课程正在进行修改，以便实验室将重点放在最适用于浅层地下的技术上：重力、地震学和地球电阻率。实验分为三个模块，每个模块处理一种技术。每个部分的第一周致力于测量技术和数据简化。接下来的两周致力于在Chenango河谷的一段内收集数据，这是一个冰川掩埋的山谷，含有大约500英尺的沙子和砾石。每个部分的最后一周致力于利用二维技术和个人电脑对地下进行建模。每年，该课程都会使用这三种技术来调查山谷的一部分。随着时间的推移，随着一组学生将他们的成果与过去几年的成果相结合，人们将对硅谷有一个更大的了解。学生也被鼓励在高级研究项目中使用这些设备。这所大学将提供等额的资金来配合这笔奖金。

Colgate University is teaching a "hands-on" laboratory in the course in geophysics which focuses on the shallow subsurface environment. Such investigations are becoming more crucial as groundwater shortages and groundwater pollution become more common. The course is a modification of the senior-level geophysics course which is being changed so that the lab focuses on those techniques which are most applicable to the shallow subsurface: gravity, seismology, and earth resistivity. The labs are structured in 3 modules, each dealing with with one of the techniques. The first week of each segment is devoted to measurement techniques and data reduction. The following 2 weeks are devoted to data collection within a segment of the Chenango River Valley, a glacially buried valley containing approximately 500 feet of sand and gravel. The final week of each segment is devoted to modelling the subsurface using two-dimensional techniques and personal computers. Each year, the course will investigate a segment of the valley using all three techniques. Over the years, a larger picture of the valley will be acquired as one group of students merges their results with those of years past. Students are also encouraged to utilize the equipment in senior research projects. The university is matching the award with an equal amount of funds.