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高压下矿物物性物态的变化,历来是研究地球内部动力学和建立地球成分模式必须涉及的重要问题。从五十年代金刚石压腔装置问世以来,特别是近十年间,随着实验技术的不断改进,高温高压下矿物物性和物态的观测已取得了可喜的成果,为研究地球深部提供了宝贵的资料。本讲着重介绍高压下某些矿物的结构相变、晶场光谱、电学性质、布里渊散射等方面的研究成果,并且对其研究意义作简单的讨论。
The change of physical properties under high pressure has always been an important issue that must be studied in studying the dynamics of the Earth’s interior and establishing the Earth’s compositional modes. Since the advent of the diamond cavity device in the 1950s, especially with the continuous improvement of experimental techniques, observational observations of mineral properties and states under high temperature and high pressure have yielded gratifying results, especially for the study of the Earth’s deeps data. This talk focuses on the research results of structural phase transitions, crystal field spectra, electrical properties, Brillouin scattering of some minerals under high pressure, and briefly discusses the significance of the study.