Technical Support for University of California, Riverside Technophysics Laboratory

为加州大学河滨分校技术物理实验室提供技术支持

• 批准号: 9731383
• 负责人: Harry Green
• 金额: $ 7.26万
• 依托单位: University of California-Riverside
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-03-01 至 2000-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9731383&HistoricalAwards=false
• 关键词: Technical; Support; University; California; Riverside

9731383 Green This grant provides partial salary support for a technician at the UC-Riverside Tectonophysics laboratory. This is a Phase II grant for technical support under the EAR/IF program. The technician is essentially a machinist who provides the necessary high precision fabrication of parts for continued development of Dr. Green's modified multianvil device used in studies of the deformation mechanics of deep mantle phases. This innovative and unique high pressure multianvil device introduces shear stresses on samples contained in a NaCl confining media, thereby reducing piston frictional effects and resultant spatial temperature variations within the sample volume. Experimental results using this device with germanate and titanate analogues of deep mantle silicates has resulted in Green's hypothesis that deep-focus earthquakes within subduction zones are the result of a phase change from olivine to a spinel polymorph. Work in the arena of high-pressure phase change initiation of faulting continues with synthetic silicates and improvements in the engineering design of Green's modified multianvil device. These experiments hold considerable promise for our understanding of deep earthquake mechanics. ***

9731383 Green这笔赠款为UC-Riverside Tectonophysics实验室的技术人员提供了部分工资支持。这是在EAR/IF计划下获得技术支持的II期赠款。 该技术人员本质上是一名机械师，他提供了必要的高精度制造零件，以持续开发格林博士的改良的多轴化装置，用于研究深幔阶段变形力学的研究。 这种创新且独特的高压多安维尔设备对NaCl限制介质中包含的样品引入了剪切应力，从而减少了活塞摩擦效应和样品体积中的空间温度变化。 使用该装置与德国酯和深幔硅酸盐的钛酸盐类似物的实验结果导致了格林的假设，即俯冲带内的深焦点地震是从橄榄石到尖晶石多晶型物发生相变的结果。 断层启动的高压相变启动的舞台上的工作继续进行了合成的硅酸盐，并改进了格林改良的多安维尔设备的工程设计。 这些实验对我们对深层地震力学的理解具有很大的希望。 ***