Statistical Thermodynamic Model for the Distribution of Crustal Heat Sources
Statistical Thermodynamic Model for the Distribution of Crustal Heat Sources
复制标题
地壳热源分布统计热力学模型
作者：
D. Turcotte;E. R. Oxburgh
观测到的大陆地区地表热通量与地表岩石中的放射性热释放的线性相关符合热源浓度与深度的指数关系。我们认为，这种深度依赖关系可以解释为引力场中生热元素的平衡分布。预测了被区分的元素组合的反射平均质量范围，似乎钾、铀和钍在与其他元素的离子络合物中向上扩散。类似的考虑也应适用于地壳和地幔中其他元素的分布。
The observed linear correlation of surface heat flux in continental regions with the radioactive heat release in the surface rocks is consistent with an exponential depth dependence of the concentration of the heat sources. We suggest that this depth dependence can be explained as an equilibrium distribution of the heat-producing elements in a gravitational field. The eflective mean mass range of the elemental assemblies being differentiated is predicted, and it appears that potassium, uranium, and thorium diffuse upward in ionic complexes with other elements. Similar considerations should apply to the distribution of other elements in the crust and mantle.