| High Pressure-Differential Thermal Analysis and Ultrasonic Wave Amplitude Analysis of Ice-Water Equilibrium at 1.5-5.0GPa |
| |
| 摘 要： | Water is the most active component in all geological systems.It has an important effect on the physical properties of minerals and melts.It also plays a key role in the evolution of the Earth.Accurate thermodynamics data on water are currently confined to pressures below 1.0GPa and temperatures below 900℃.Presented in this paper are new data available on the P-T properties of water at pressures up to 5.0GPa,develoged from differential thermal analysis and ultrasonic wave amplitude analysis.It has been found that there may exist another ternary point at 3.0GPa and that ultrasonic wave amplitude change of ice-water transition shows two inflection points above 2.0GPa, consistent with the two peaks of differential thermal curves above 2.0GPa .It may be a new phenomenon which needs further study.
|
| 关 键 词： | 高压作用 冰水平衡 超声波分析 高温 地球体系 p-t轨迹 |
High pressure-differential thermal analysis and ultrasonic wave amplitude analysis of ice-water equilibrium at 1.5–5.0 GPa |
| |
| Authors: | Xu Yousheng Zheng Haifei Xie Hongsen Zhang Yueming Xu Huigang Guo Jie |
| |
| Institution: | (1) Department of Geology, Peking University, 100871 Beijing;(2) Earth’s Interior Materials laboratory, Institute of Geochemistry, Chinese Academy of Sciences, 550002 Guiyang |
| |
| Abstract: | Water is the most active component in all geological systems. It has an important effect on the physical properties of minerals
and melts. It also plays a key role in the evolution of the Earth. Accurate thermodynamics data on water are currently confined
to pressures below 1.0 GPa and temperatures below 900°C. Presented in this paper are new data available on theP-T properties of water at pressures up to 5.0 GPa, developed from differential thermal analysis and ultrasonic wave amplitude
analysis. It has been found that there may exist another ternary point at 3.0 GPa and that ultrasonic wave amplitude change
of ice-water transition shows two inflection points above 2.0 GPa, consistent with the two peaks of differential thermal curves
above 2.0 GPa. It may be a new phenomenon which needs further study.
The project was jointly supported by the National Natural Science Foundation of China and the Dean Foundation of CAS. |
| |
| Keywords: | high pressure ice-water equilibrium differential thermal analysis ultrasonic wave amplitude analysis |
| 本文献已被 维普 SpringerLink 等数据库收录！ |
