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

这笔拨款通过主要研究仪器（MRI）计划获得，提供10万美元作为购买电感耦合等离子体发射光谱仪（ICP-ES）的部分费用支持，用于快速分析包括自然水，沉积物，岩石和生物组织在内的各种样品基质中的主要和微量元素浓度。将利用这台新仪器的分析能力的具体研究包括利用对海水和沉积物样品的主要元素和微量元素分析来推断海洋过去的情况（即初级生产力、生物矿物的保存、风成颗粒到海底的通量等），研究在南极洲回收的火山灰的地球化学以用于物源，横贯南极山脉的年代学对比和构造史研究；内华达山脉伸展区岩基花岗岩的岩石学研究，以阐明地幔可能参与其形成；高应变片岩和片麻岩的主要和微量元素组成研究，以了解变质作用过程中的扩散传质；淡水藻类组织中重金属的生态毒理学研究及其对光合作用的可能影响。该仪器将补充最近在该地区的几个机构（即哈佛大学、麻省理工学院、WHOI、URI和布朗大学）获得的几台ICP-MS仪器的分析能力，从而使BU ICP-ES成为一个真正的主要和微量元素地球化学区域设施。＊＊＊

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. ***