Technical Support for M.I.T. Mass Spectrometer Facility

小行星9406305 该奖项提供部分资金，用于支助一名技术员，该技术员被分配到马萨诸塞州理工学院地球、大气和行星科学系的固体源和气体源质谱实验室。 这些实验室正在从事需要全职技术援助的研究和研究生教育项目。目前的基础研究项目侧重于使用放射性测年技术来解释大规模构造过程和地球历史。 克雷格 该奖项提供了75%的资金，用于购买一个显微镜系统，用于传输和反射光，用于稀有气体同位素实验室，斯克里普斯海洋学研究所在加州，圣地亚哥大学。该大学致力于提供收购所需的剩余资金。 显微镜系统主要用于研究从地幔中挤出的玄武岩样品中捕获的流体，玻璃和结晶包裹体的研究人员。在提取稀有气体（氩、氦和钕）进行同位素分析之前，需要使用显微镜来定位和识别这些小包裹体。斯克里普斯海洋研究所的研究人员正在利用从地幔中携带的稀有气体的同位素含量来了解地幔的地球化学演化。 ***

9406305 Hodges This award provides partial funding for the support of a technician assigned to the solid-source and gas-source mass spectrometry laboratories in the Department of Earth, Atmospheric and Planetary Sciences at the Massachusetts Institute of Technology. The laboratories are engaged in ongoing programs of research and graduate education that require full-time technical assistance. Current basic research projects focus on the use of radiometric dating techniques to interpret large-scale tectonic processes and Earth history. *** 9405805 Craig This award provides 75% of the funds required for the acquisition of a microscope system for use with transmitted and reflected light to be used in the rare gas isotope laboratory, Scripps Institution of Oceanography at the University of California, San Diego. The University is committed to providing the remaining funds necessary for the acquisition. The microscope system is mainly to be used by researchers working with fluid, glass, and crystalline inclusions trapped in samples of basaltic rocks that have been extruded from the Earth's mantle. The microscope is needed for the location and identification of these small inclusions prior to extraction of the rare gases (argon, helium, and neodymium) for isotopic analysis. The researchers at the Scripps Institution of Oceanography are using the isotopic content of the rare gases brought up from the mantle to understand the geochemical evolution of the mantle. ***