【摘要】 古老盆地大都经历了多期构造运动，而每次构造运动中大地构造条件的变化，必然引起古大地热流的变化。针对多构造期古老盆地这一特点，在大地热流反演方法的基础上，提出了另一种处理方法多段线性古热流模型，以期用相对简单的方式来表征复杂地质情况下的古热流变化特征。利用该模型对冀中坳陷北部中—上元古界古热流演化进行了分析，所建立的模型符合该区大地构造演化特点。更多还原

【Abstract】 Most sedimentary basins had undergone a series of tectonic events, which could have a siginificant influence on the change of the paleo geothermal flux of the basins. This paper presents a multiple linear intervals model for geothermal history of the sedimentary basins which had undergone several different tectonic stages. In each stage, the heat flux varies linearly with geological time. The application of the model shows that this method is of good consistent with the polycycle tectonic features, and can be used for the evaluation of the Proterozoic and Paleozoic basins in the northern China.更多还原