Technician Support for a new multi-collector ICP-MS facility for Terrestrial and Marine Geochemical Research

0841797鲁宾在这项提案中，私人投资机构要求获得30万美元的技术员支持，以支付新雇用的全职电感耦合等离子体质谱仪设施技术员的部分工资。这名技术人员将为通过GEO/EAR和GEO/OCE基金购买的新的ICPMS提供支持。这名技术人员将履行几项关键职责。他/她显然将在保持仪器运行和良好维护方面发挥重要作用。此外，该技术员将负责学生的培训和整合。另一项主要责任(也是雇用博士级别申请者的驱动力)是方法开发。该仪器将被并入一个多用户设施，并将是一种开放使用并在成本充值模式下工作的仪器。这一请求是对邀请的回应，因为新雇用的人将通过大学提供部分资金，在拟议的赠款期限之后，将通过UH、充值和赠款支持全额提供资金。PI在NSF-EAR和OCE项目中拥有强大的研究足迹。新的MC-ICP-MS与EAR-IF赠款相关。总体研究工作围绕U系列、铅、钕和锶同位素测量S进行，用于火山学、地幔地球化学、环境科学和海洋研究。其应用包括用于将火山条件与喷发类型联系起来的U系列测量，用于阐明生物成因沉积物地质年代学的231PA同位素稀释分析，用于重建夏威夷和其他区域海平面历史并确定弹药污染物生物地球化学的U系列测量，以及用于替代岩石年龄和水-岩石交换过程的热液中的Ra同位素测量。新的MC-ICPMS将允许锶、钕、铅和Hf同位素分析作为地球历史的替代物--然而，要将现有的TIMS方法转换为更灵敏的激光消融和湿化学电感耦合等离子体质谱分析，还需要做大量的开发工作。这些同位素将作为物源示踪剂，用于阐明矿床、风化作用和古气候学。增加Os同位素有助于阐明远洋碳酸盐和硅质岩的层序。其他工作将包括追踪玄武岩熔岩挥发和凝聚过程中的火山和人为同位素--Se、Cd、Tl、Te、锌和铜同位素分馏将作为分析指标。最后，镁同位素分析将被用来更好地了解海洋镁在热液系统中的循环。新的分析能力将在教职员工、学生和外部用户之间实现额外的协同效应。新技术人员将协助培训新用户？这样才能造就明天？地学家S。该设施将支持多样化的研究人员和学生群体。*

0841797RubinIn this proposal, the PIs request $300K for technician support to cover partial salary for a new hire full-time ICP-MS facility technician. This technician will support a new ICP-MS purchased through GEO/EAR and GEO/OCE funds. The technician will serve several key duties. He/She will obviously have a major roll in keeping the instrument running and well maintained. In addition, the technician will be responsible for student training and integration. Another major responsibility (and a driver for hiring a PhD-level applicant) is in method development. The instrument will be incorporated into a multi-user facility and will be an open-access and work under a cost recharge model. This request is responsive to the solicitation in that the new hire will be partially-funded through the University and after the term of the proposed grant, will be fully funded through UH, recharge and grant support. The PIs have a strong research footprint in NSF-EAR and OCE projects. The new MC-ICP-MS was associated with a EAR-IF grant. General research efforts revolve around U-series, Pb, Nd, and Sr isotope measurement s for volcanology, mantle geochemistry, environmental science and marine research. Applications include U-series measurements to link volcanic conditions to eruption style, development of 231Pa isotope dilution analysis to elucidate biogenic sediment geochronology, U-series measurements to reconstruct Hawaiian and other regional sea level histories and determine munitions contaminant biogeochemistry, and Ra isotope measurements in hydrothermal fluids in order to proxy rock ages and water-rock exchange processes. The new MC-ICP-MS will allow Sr, Nd, Pb and Hf isotope analyses as Earth history proxies - however, much development work is needed to convert existing TIMS methodologies to more sensitive laser ablation and wet-chemical ICP-MS analyses. These isotopes will serve as provenance tracers and be used to elucidate deposits, weathering and paleoclimatology. Adding Os isotopes will help elucidate pelagic carbonate and chert sequences. Additional efforts will involve tracking volcanic and anthropogenic isotopes during basaltic lava volatilization and condensation - Se, Cd, Tl, Te, Zn and Cu isotope fractionation will serve as the analytical proxy. Finally, Mg isotope analysis will be used to better understand oceanic Mg cycling through hydrothermal systems. The new analytical capabilities will allow additional synergies amongst faculty, students and outside users. The new technician will assist in training new users ? thus helping to produce tomorrow?s geoscientists. The facility will support a diverse researcher and student population.***