Acquisition of a Laser Probe Rare Gas Mass Spectrometry System for Research in the Earth Sciences

9724189希尔顿这笔赠款是通过重大研究仪器方案提供的，提供277,718美元，用于支付以下费用：购买配备紫外线和红外激光探头的稀有气体质谱仪、相关气体提取管道的内部制造，以及为斯克里普斯海洋研究所稀有气体同位素地球化学实验室的一名实验室技术员提供半职支持。建立这一最先进的设施将能够对地质材料进行高空间分辨率的微量采样，并随后对速率气体同位素组成进行高灵敏度分析，以解决地壳与地幔对热点和弧形火山的贡献、用于暴露年龄测定的地下岩石中宇宙成因核素(即21Ne)的产生率以及根据对可能保存在元古代岩石矿物流体包裹体中的气体的20Ne/22Ne比率的分析而对地球古代大气进行研究的情况。***

9724189 Hilton This grant, made through the Major Research Instrumentation (MRI) Program, provides $277,718 as partial support of the costs of acquiring a rare gas mass spectrometer equipped with UV and IR laser probes, in-house manufacture of the associated gas extraction lines and half-time support for a lab technician for the noble gas isotope geochemistry laboratory at Scripps Institution of Oceanography. Establishment of this state-of-the-art facility will allow high spatial resolution micro-sampling of geologic materials and subsequent high sensitivity analyses of rate gas isotopic compositions in order to resolve such issues as crustal versus mantle contributions to hotspot and arc volcanics, production rates of cosmogenic nuclides (i.e. 21Ne) in subaerial rocks for use in exposure-age dating and studies of the Earth's ancient atmosphere based on analyses of the 20Ne/22Ne ratio of gases that may be preserved in mineral fluid inclusions in Proterozoic rocks. ***