Changes of deep Earth materials and high pressure materials under high pressures

本项目旨在研究深部地球物质和高压物质在高压下的变化。(1)激光烧蚀质谱学被发展起来用于小范围的痕量和轻元素分析。(2)元素碳和相关的金刚石材料的性质已经被作为硬质材料的工业利用进行了研究。(3)以地幔天成岩和金伯利岩浆为证据，研究了太古代地幔之下岩石圈地幔的性质。(4)研究了硅酸盐矿物的高压相变，阐明了俯冲带的地震活动和它们的转化过程之间的关系。这些研究是作为与纽约州立大学石溪分校的合作研究进行的。

This project aims to study changes of deep Earth materials and high pressure materials under high pressures.(1) Laser ablation mass spectometry has been developed to analyze trace and light elements in small area.(2) Properties of elemental carbon and related diamond materials have been studied for its industrial utilization as the hard material.(3) Nature of lithospheric mantle beneath the archean mantle has been investigated by using mantle zenolith and kimberlite magma as a prove.(4) High pressure phase transition in silicate minerals has been studied to clarify relationships between seismicity of the subduction zone and their transformation process. These studies have been made as a cooperative research with State University of New York at Stony Brook.