Abstract: A mantle temperature profile is presented, which was obtained by solving the global energy balance equations. A sharp temperature increase across the mid-mantle transition zone inhibits a simple downward-extrapolation from the near surface data. However, this problem is solved in the context of studying the cooling process of the Earth. As the present-day value, the temperature at the base of the mantle was obtained to be 2 940K. At the mid-mantle transition zone, the temperature became 2 040 K with a sharp change of 310 K across the mid-boundary layer. At the base of the surface boundary layer it was obtained as 1 610 K.

Key words: Mantle temperature, Thermal history, Energy balance equation

摘要： 通过求解全球能量平衡方程,得到地幔温度剖面。中地幔过渡带有一个温度突然增加,因此不能根据近地表数据向下做简单的外推。这个问题可以通过研究地球的冷却过程解决。目前地幔底部的温度值是2940K,中地幔过渡带温度为2040K,穿过这个带有一个310K的突变。上部边界层底部的温度为1610K。

关键词: 地幔温度, 热历史, 能量平衡方程