Phase Relations of Earth’s Core-Forming Materials

Crystals

Tetsuya Komabayashi¹ 

[1] School of GeoSciences and Centre for Science at Extreme Conditions, University of Edinburgh, Edinburgh EH9 3FE, UK;

关键词: phase relation;    Earth’s core;    iron alloys;    high-pressure;    high-temperature;    thermodynamics;   

DOI  :  10.3390/cryst11060581

来源: DOAJ

【 摘 要 】

Recent updates on phase relations of Earth’s core-forming materials, Fe alloys, as a function of pressure (P), temperature (T), and composition (X) are reviewed for the Fe, Fe-Ni, Fe-O, Fe-Si, Fe-S, Fe-C, Fe-H, Fe-Ni-Si, and Fe-Si-O systems. Thermodynamic models for these systems are highlighted where available, starting with 1 bar to high-P-T conditions. For the Fe and binary systems, the longitudinal wave velocity and density of liquid alloys are discussed and compared with the seismological observations on Earth’s outer core. This review may serve as a guide for future research on the planetary cores.

【 授权许可】

Unknown