Upgrade of UCSC Mineral Physics Laboratory

该合同将允许对加州大学圣克鲁斯分校矿物物理实验室的现有设备进行升级。该设备不仅将为广大研究生和本科生提供最先进的培训场所，还将确保遵守高级激光安全协议。加州大学伯克利分校的矿物物理实验室在培训在地球材料高压光谱学方面拥有专业知识的学术界和工业界的学生方面有着悠久的历史，此次升级将允许使用更多用户友好型和安全友好型设备继续进行这项培训。除了对UCSC压力测量系统进行安全升级外，还将获得一台新的拉曼光谱仪，它将用具有更高空间分辨率、极大改进的检测技术以及现代仪器控制和数据收集软件的仪器取代功能较弱且过时的18年旧仪器。此次升级所带来的研究涉及的问题包括：地球深部的水和碳的储存能力，以及地球深部与地表环境之间如何发生与地球形成有关的水和碳的交换？S海洋；高压下熔体和流体的结构和物理性质，其影响范围从俯冲相关过程产生的爆炸性火山事件，到地球附近可能存在部分熔融的带？S可能代表根？地幔边界？深度衍生的火山上升流。该设备也将用于非高压物质的表征，包括探测细粒考古样品，以及流体包裹体和古生物学研究。本质上，它还将作为快速和精细的矿物和流体表征的工具，从而深入了解各种现象，如古代陶瓷的烧成温度，在不同地质环境中产生的石化程度(和类型)，以及矿物宿主中捕获的成矿流体的组成。

This award will permit the upgrading of existing equipment in the mineral physics laboratory at UC Santa Cruz. This equipment will not only provide a state-of-the-art training ground for a broad group of graduate and undergraduate students, but will also ensure adherence to high-level laser safety protocols. The mineral physics laboratory at UCSC has an extended history of training students for placement in academia and industry who have expertise in the high-pressure spectroscopy of Earth materials, and this upgrade will allow this training to continue with more user- and safety-friendly equipment. In addition to safety upgrades of the UCSC pressure-measurement system, a new Raman spectrometer will be acquired that will replace a marginally functional and obsolete 18-year old apparatus with an instrument that has higher spatial resolutions, vastly improved detection technology, and modern instrument-control and data-collection software. The issues addressed by the research enabled by this upgrade include: the water and carbon storage capacity of the deep Earth, and how exchange of water and carbon takes place between the deep Earth and the surface environment, with relevance to the formation of Earth?s oceans; the structure and physical properties of melts and fluids at high pressures, with implications for issues ranging from explosive volcanic events generated via subduction-related processes, to the possible presence of partially melted zones near Earth?s core-mantle boundary that may represent the ?roots? of deeply-derived volcanic upwellings. This apparatus will be deployed for non-high pressure materials-characterization as well, including probing fine-grained archeological samples, and fluid inclusion and paleontologic studies. In essence, it will also function as a tool for rapid and fine-scale mineral and fluid characterization that will yield insights into phenomena as diverse as the firing temperatures of ancient ceramics, the degree (and type) of fossilization produced in different geologic environments, and the compositions of ore-forming fluids trapped in mineral hosts.