The Iron Invariance: Implications for Thermal Convection in Earth’s Core

These data are measured electrical resistivity of solid and liquid iron from 14 to 24 GPa. Our data show that the electrical resistivity along the pressure-dependent melting boundary of iron is constant and are used to extrapolate the electrical resistivity, thermal conductivity and heat flow under the Earth's core conditions. These results provide strong support for thermal convection as a geodynamo energy source.

本数据集测定了14至24吉帕斯卡（GPa）压力范围内固态与液态铁的电阻率。研究结果表明，铁在压力依赖熔融边界处的电阻率恒定不变；本数据集还被用于外推地球核部环境下的电阻率、热导率与热流值。上述结果为热对流作为地球发电机的能量来源提供了强有力的支撑。