摘要
利用ＹＪ－３０００ｔ压力机的弹性波速度测量装置在２．０ＧＰａ、室温至１１６０℃条件下就位测量了湖北大冶陈贵安山岩的纵波速度，并在相应条件下获取了实验产物．对其观察表明，对应着岩石弹性波速度的变化，实验样品已经发生了相变．讨论了岩石相变与其弹性波速度之间的关系，初步认为在２．０ＧＰａ和高温下。
Compressional wave velocity ( v p) in an andesite sample, collected from Daye County, Hubei Province, was measured at 2.0GPa and at the room temperature to 1160℃ using a multi_anvil pressure apparatus called the YJ_3000t press. The run products were gained under the same pressure at different temperatures. The observation of the thin sections of the run products shows that the phase transformation corresponding to the variation of v p occurred in the experimental samples of andesite. Therefore, the correlation between the change in v p and that in phase transformation suggests the following initial conclusion that the rock phase transformation (including solid_solid phase transformation and partial melting) at 2.0GPa is the major cause of the change in v p of andesite. In this sense, the experimental data presented here are important to the understanding of the geological process in the interior of the earth.
出处
《地球科学（中国地质大学学报）》
EI
CAS
CSCD
北大核心
1999年第3期261-264,共4页
Earth Science-Journal of China University of Geosciences
基金
国家自然科学基金
关键词
高温
高压
纵波速度
相变
安山岩
high temperature and high pressure, compressional wave velocity, phase transformation, andesite.
