Acquisition and Upgrade of an Inductively Coupled Plasma Emission (ICP-ES) Laboratory of Geological, Oceanographic, and Environmental Chemical Research

9724282--这笔赠款通过重大研究仪器计划提供100,000美元，作为购买电感耦合等离子体发射光谱仪的部分费用，用于快速分析各种样品基质中的主要和微量元素浓度，包括天然水、沉积物、岩石和生物组织。将利用这一新仪器的分析能力的具体研究包括：利用海水和沉积物样本的主要元素和微量元素分析来推断海洋过去的状况(即初级生产力、生物矿物的保存、风成颗粒流向海底等)、在南极洲回收的用于物源的火山灰的地球化学研究、横跨北极山脉的年代对比和构造史研究、内华达山脉伸展区域基岩花岗岩的岩石学研究，以阐明地幔可能参与其形成。研究高应变片岩和片麻岩的主量元素和微量元素组成，以了解变质过程中的扩散传质，以及淡水藻类组织中重金属的生态毒理研究及其对光合作用的可能影响。该仪器将补充该地区几个机构(即哈佛大学、麻省理工学院、世界卫生组织、URI和布朗大学)最近购买的几台电感耦合等离子体质谱仪的分析能力，从而使北卡罗来纳大学的电感耦合等离子体质谱真正成为主要和微量元素地球化学的地区性设施。***

9724282 Murray This grant, made through the Major Research Instrumentation (MRI) Program, provides $100,000 as partial support of the costs of acquiring an inductively coupled plasma emission spectrometer (ICP-ES) for rapid analyses of major and trace element concentrations in a variety of sample matrices including natural waters, sediments, rocks and biological tissues. Specific studies that will take advantage of the analytic capabilities of this new instrument include utilize major element and trace element analyses of seawater and sediment samples to make inferences about past conditions in the oceans (i.e. primary productivity, preservation of biogenic minerals, eolian particle flux to the seafloor etc.), studies of the geochemistry of volcanic ashes recovered in Antarctica for use in provenance, chronologic correlation and tectonic history studies of the Transantarctic Mountains, petrologic studies of batholith granites in the Sierra Nevada extensional region to elucidate possible mantle involvement in their formation, studies of the major and trace element compositions of high strain schists and gneisses to understand diffusional mass transfer during metamorphism and ecotoxologic studies of heavy metals in freshwater alga tissues and their possible effects on photosynthesis. This instrument will complement the analytical capabilities of several ICP-MS instruments recently acquired at several institutions within this region (i.e. Harvard, MIT, WHOI, URI and Brown), thus making the BU ICP-ES a truly regional facility for major and trace element geochemistry. ***