In this paper, the mathematical equations of two-dimensional thermal density flow in channel are developed and the finite layer numerical model is established.

推导二维渠道温差异重流的数学方程，并建立了有限层带数值计算模型。

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Results show that the thermal effect of plate motion driven mantle flow and its contribution to the observed heat flow is greater than that due to internal density anomaly (tomography based).

结果表明，与地幔内部密度异常产生的热效应相比，运动的板块及其激发的地幔流动在全球地表观测热流的产生和分布特征上起着更为重要的作用。

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The principle of determining thermal conductive factor of original formation through microdifference temperature is conservation of energy(equal density of geothermal heat flow).

利用微差井温确定原始地层的导热系数，基于能量守衡（地热流密度相等）这一原理。

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