Acquisition of a CHN Elemental Analyzer, Particle Size Analyzer, and KappaBridge to investigate the origin of rhythmites in the Finger Lakes of New York

0420576 curtin主要研究仪器（MRI）拨款将用于购买一台自动元素分析仪；自动电子粒度分析仪；以及霍巴特和威廉史密斯学院地球科学系和环境研究项目的旋转卡帕布里奇。这些仪器将主要用于调查记录在纽约州芬格湖全新世层状沉积物中的气候和环境变化证据。使用这些仪器，可以对厘米尺度的薄片进行高分辨率的古气候和古环境研究，因为它们是计算机控制的、自动化的，可以使用小样本量进行分析，同时保持高水平的精度、准确性和样品吞吐量。具体而言，元素分析仪将用于表征总有机质并区分有机质的来源。粒度分析仪和kappbridge将协同使用来推断泥沙运移的动力学。这些仪器将支持一个持续的项目，该项目致力于开发一个模型来解释全新世气候变化如何影响全新世期间芬格湖的湖泊循环动态和整体水文平衡。这些仪器也将有助于为HWS的本科生提供一个设备齐全的学习环境，以围绕湖泊和环境研究

0420576CurtinFunds from this Major Research Instrumentation (MRI) grant will be used to acquire an automated elemental analyzer; an automated electronic particle size analyzer; and a spinner KappaBridge for the Geoscience Department and Environmental Studies Program at Hobart & William Smith Colleges (HWS). These instruments will be used primarily to investigate evidence of climate and environmental change archived in Holocene laminated sediments in the Finger Lakes of New York State. High-resolution paleoclimate and paleoenvironmental research on cm-scale laminations will be made possible using these instruments because they are computer-controlled, automated, and can use small sample volumes for analysis while maintaining a high level of precision, accuracy, and sample throughput. Specifically, the elemental analyzer will be used to characterize the total organic matter and differentiate the source of organic matter to the lakes. The particle size analyzer and KappaBridge will be used in concert to infer the dynamics of sediment transport. These instruments will support a continuing project that strives to develop a model to explain how Holocene climate change impacted the dynamics of lake circulation and the overall hydrological balance in the Finger Lakes during the Holocene. These instruments will also help provide a well-equipped learning environment for undergraduate students at HWS that revolves around lake and environmental research.***