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高温高压实验是探索地球深部奥秘的重要手段,金刚石压腔(Diamonnd Anvil Cell,DAC)作为一种静态超高压实验装置,目前能够达到的温压条件可以涵盖整个地球范围.近年来,随着实验技术的发展和实验装备的不断改进,DAC可以与多种物性测量方法相结合,在模拟地球深部温度和压力的条件下,原位获得有关地幔矿物的物性数据.本文首先介绍了金刚石压腔装置及其特点,然后重点阐述了近五年来DAC在典型地慢矿物物性研究方面取得的进展:(1)水在橄榄石、辉石中的结合方式及其影响;(2)组成成分变化对橄榄石、石榴子石、斯石英、钙钛矿等矿物物性的影响.文章最后对金刚石压腔装置的改进,特别是压砧的发展进行了探讨.
High-temperature and high-pressure experiment is an important method to explore the deep mystery of the earth. As a static high-pressure experimental device, the currently available temperature and pressure conditions can cover the entire earth’s sphere. In recent years, With the development of technology and continuous improvement of experimental equipment, DAC can be combined with a variety of physical measurement methods to obtain the physical properties of mantle minerals in situ under the conditions of simulated deep temperature and pressure in the earth.In this paper, firstly, And its features, and then highlights the recent progress DAC has made in the study of typical slow mineral properties in the past five years: (1) the way water binds in olivine and pyroxene, and its effects; (2) Stone, garnet, quartz, perovskite and other minerals.At last, the improvement of the diamond cavity device, especially the development of the anvil was discussed.