Instrumentation for the Study of Sedimentary Processes and Stratigraphy in Lakes and Nearshore Marine Environments in an Undergraduate Geology Curriculum

记录CTD、声学海底剖面系统和磁化率系统正被用于分析湖泊和近岸海洋环境的沉积过程和地层。该设备的增加使沉积学、冰川学和第四纪地质学课程、目前的两门实地课程和师生研究中的实地和实验室练习得以发展。CTD装置被用于监测现代沉积物运输和沉积的控制，如水柱中的盐度、温度和氧气。声学海底剖面仪是一种“回声探测”系统，用于获得湖泊或海洋盆地横断面沉积物填充的详细连续记录。磁化率系统正被用来确定从湖泊和海洋盆地中回收的沉积物岩心的磁地层学，这将随后为盆地内岩心的对比提供一种手段。新设备通过向学生介绍提供沉积过程和沉积环境详细信息的现代沉积学和地层学技术，极大地加强了我们现有的环境和古环境研究项目。＊＊＊

9351733 Retelle A recording CTD, an acoustic sub-bottom profiling system, and a magnetic susceptibility system are being used in the analysis of sedimentary processes and stratigraphy in lacustrine and nearshore marine environments. The addition of this equipment is allowing for development of field and lab exercises in courses in Sedimentology, Glacial, and Quaternary Geology, in two current field courses, and in faculty-student research. The CTD unit is being used to monitor controls on modern sediment transport and deposition such as salinity, temperature, and oxygen in the water column. The acoustic sub- bottom profiler is an "echo-sounding" system that is being used to obtain detailed continuous records of sediment fill in transects across the lake or marine basins. The magnetic susceptibility system is being used to determine the magnetostratigraphy of sediment cores recovered from the lakes and marine basins which will subsequently provide a means for correlation of cores within the basin. The new equipment is greatly strengthening our existing program of environmental and paleoenvironmental studies by introducing students to modern sedimentological and stratigraphical techniques that provide detailed information on sedimentary processes and depositional environments. ***