A Stable Isotope Ratio Mass Spectrometer (SIRMS) for Carbonate-Based Paleoceanographic Studies at Brown University

OCE 99- 86757 Prell奖是用于购买一台稳定同位素比质谱仪（SIRMS），该质谱仪将致力于测量沉积物碳酸盐样品的氧和碳同位素，重点是测量来自大洋钻探计划（ODP）和其他沉积物岩心的样品，以解决古海洋学和古气候问题。 这台仪器是需要取代一个过时的，14岁的仪器，是有限的吞吐量和样本量的要求，越来越不足以支持一个活跃的和不断增长的（在规模和研究方向）在布朗大学地球系统历史组的需求。 将要购买的SIRMS装置可能是Finnegan MAT 252或Micromass Optima，确切型号将在稍后确定。 这两种装置都将配备自动取样装置，用于在线制备和分析海洋碳酸盐沉积物中的二氧化碳。

OCE 99-86757PrellAward is for acquisition of a stable isotope ratio mass spectrometer (SIRMS) that will be dedicated to measuring oxygen and carbon isotopes of sediment carbonate samples, with a focus on measuring samples from Ocean Drilling Program (ODP) and other sediment cores that address paleoceanography and paleoclimate problems. This instrument is needed to replace an obsolete, 14-year-old instrument that is limited in throughput and sample size requirements, and increasingly inadequate to support the needs of an active and growing (in both size and research directions) Earth Systems History group at Brown University. The SIRMS unit to be acquired will likely be either a Finnegan MAT252 or a Micromass Optima, with the exact model to be determined later. Either device would be fitted with an auomated sampling device for on-line preparation and analysis of CO2 derived from marine carbonate sediments.***