Acquisition of an Isotope Ratio Mass Spectrometer for Geochemical, Biogeochemical and Petrological Research

这项主要研究仪器（MRI）拨款为购买稳定同位素比质谱仪（SIRMS）提供部分支持，该质谱仪配备了用于碳酸盐和水分析以及气相色谱的专用入口系统。该设施将支持北伊利诺伊大学在三个领域的研究和教学：(a)水、碳酸盐和硅酸盐地球化学，(b)生物地球化学和(c)地球微生物学。该设施将容纳各种各样的用户，并将提供快速，简单，自动化的样品分析。包括Paul Loubere， Melissa Lenczewski和Gene Perry在内的NIU教师将使用sims进行硅酸盐，碳酸盐，天然水，有机物和特定有机分子的稳定同位素研究。要解决的研究领域包括矿物平衡；北美洲、中美洲和南极洲岩石的岩石成因；矿物沉淀与成岩作用；海洋碳循环；热带海洋在气候变化中的作用；高纬度地区冰川作用的时间和原因；通过火山弧的元素通量；地下水地球化学，包括人为化合物的降解；以及地理生物学的主题。该设施也将使其他中西部地区机构的科学家受益，包括伊利诺伊州立大学、南伊利诺伊州和芝加哥菲尔德自然历史博物馆。该设施将增加许多这些机构的广泛研究人员及其学生之间的合作。* * *

0321004LoubereThis Major Research Instrumentation (MRI) grant provides partial support for the purchase of an stable isotope ratio mass spectrometer (SIRMS) equipped with specialized inlet systems for carbonate and water analysis and for gas chromatography. This facility will support research and instruction at Northern Illinois University in three areas: (a) aqueous, carbonate and silicate geochemistry, (b) biogeochemistry and (c) geomicrobiology. The facility will accommodate a wide variety of users and will provide rapid, easy, automated sample analyses. NIU faculty including Paul Loubere, Melissa Lenczewski and Gene Perry will use the SIRMS for stable isotopic studies of silicates, carbonates, natural waters, organic matter and specific organic molecules. Research areas to be addressed include mineral equilibria; petrogenesis of rocks from North America, Central America and Antarctica; mineral precipitation and diagenesis; the marine carbon cycle; the role of tropical oceans in climate change; timing and causes of glaciation at high latitudes; the elemental fluxes through volcanic arcs; groundwater geochemistry including the degradation of anthropogenic compounds; and topics in geobiology. The facility will also benefit scientists at other regional mid-west institutions including Illinois State, Southern Illinois and The Field Museum of Natural History in Chicago. The facility will increase collaborations among a broad range of researchers and their students at a number of these institutions. ***