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

用于入门地质学、地下水地质学和环境地球物理学的探究型综合实验室的地球物理和 GPS 设备

• 批准号: 9551251
• 负责人: H. Robert Burger
• 金额: $ 2.84万
• 依托单位: Smith College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-07-01 至 1997-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9551251&HistoricalAwards=false
• 关键词: Geophysical; GPS; Equipment; Inquiry; Oriented

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.

地质系正在全面改造地质学入门实验室，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、面向调查的、实地经验，解决相互关联的地方地质问题，并强调需要采取多学科办法。 这些实验室侧重于当地的地质和环境问题，因为当地的供水依赖于封闭的含水层。 农业杀虫剂和工业废物对这一水域的污染程度不同。 购买具有改进的数据采集和数字数据传输能力的现代化设备，使其能够在课程实验室中解决有意义的问题，即使是在入门级。 介绍性地质实验室包括折射地震勘测，以确定含水层厚度;电阻率勘测，以继续监测沥滤液羽流;磁力梯度计勘测，以寻找潜在的污染源;测量观测威尔斯的水位，以绘制电位面;确定含水层的渗透性和储存性，以评估地下水运动速度。 地下水地质学和环境生物物理学联合实验室补充了这一努力，从而在初步经验的基础上更进一步。 其他活动包括绘制沉积物地层图的地震反射剖面图和评估可能的羽流迁移路径的高级地下水分析。 GPS信息与所有课程的所有现场数据一起可以添加到一个广泛的GIS数据库中，用于制作和评估学生评估的衍生地图。