Acquisition of Equipment for Integrated Environmental Research and Education in Recent Sediments and Surface Processes

这项拨款通过主要研究仪器（MRI）计划提供106,166美元，作为购买设备的部分费用的支持，用于佛蒙特大学地表和环境地质学的综合研究。具体来说，将要购买的设备将包括一个实时动态全球定位系统接收机和手持式GPS现场装置、一个碳/氮分析仪和整个核心磁化率系统。该设备将有利于这些年轻的研究人员和他们的学生对各种有趣的和具有环境意义的研究的分析需求，包括景观演化研究，依赖于利用宇宙成因核素对暴露表面进行AMS测年，研究新英格兰河流阶地的构造和冰川后均衡倾斜，记录历史湖泊水位变化和沿海湿地海侵，以响应海平面上升。研究沿海湿地的碳动态，评估森林生态系统和水生食物网中的氮转化。GPS设备将有助于仔细记录样本的地理位置，以供随后的暴露年龄测定，并将提供湖泊和湿地海岸线随时间变化的准确描绘。C/N分析仪是表征湖泊和沼泽沉积物所必需的，并将补充共同pi Andrea Lini在沿海，湖泊和森林生态系统营养动态研究中的稳定同位素调查。最后，磁化率系统将在比尔曼的构造、均衡和地貌研究中对地层控制具有不可估量的价值，因为它将有助于各个地层的对比。＊＊＊

9724190 Bierman This grant, made through the Major Research Instrumentation (MRI) Program, provides $106,166 as partial support of the costs of acquiring equipment to be used in integrated studies of surficial and environmental geology at the University of Vermont. Specifically, the equipment to be purchased will include a real-time kinematic global positioning system receiver and hand-held GPS field unit, a carbon/nitrogen analyzer and a whole core magnetic susceptibility system. This equipment will benefit the analytical needs of these young researchers and their students for a variety of interesting and environmentally significant studies including, landscape evolution research that relies on AMS dating of exposed surfaces using cosmogenic nuclides, studies of tectonic and post-glacial isostatic tilting in New England fluvial terraces, documenting historical lake level changes and coastal wetland transgression in response to rising sea level, investigating the carbon dynamics of coastal wetlands, and assessing nitrogen transformations in forested ecosystems and through aquatic food webs. The GPS equipment will help to carefully document the geographic location of samples for subsequent exposure age dating and will provide accurate delineation of changes in lake and wetland shorelines through time. The C/N analyzer is necessary for characterization of lake and marsh sediments and will complement the stable isotopic investigations of co-PI Andrea Lini in studies of nutrient dynamics in coastal, lacustrine and forest ecosystems. Finally, the magnetic susceptibility system will be invaluable for stratigraphic control in the tectonic, isostatic and geomorphologic studies of Bierman as it will aid in the correlation of individual strata. ***