大洋中脊的形成过程

本文从热传导方程出发,得到了大洋中脊下岩石层温度分布的分析表达式及数值计算结果。结果表明,软流层上涌流动所提供的热源可以使大洋中脊下岩石层逐步融化;岩石层的相对移动速度对大洋中脊岩石层温度场及融化深度影响较大。

THE FORMATIVE PROCESS OF MID-OCEAN RIDGE

By use of the heat conduction equation in a moving medium, the analytical solution of the temperature distribution and heat flow distribution and its computational results are obtained in this paper. The computational results indicate that the upwelling flow in the asthenosphere supplies the heat energy which can make the lithosphere under the mid-ocean ridge to melt gradually; the speed of the lithosphere relative to the asthenosphere affects greatly the temperature field, the heat flow and the melting depth at the mid-ocean ridge.