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根据磷灰石裂变径迹和镜质体反射率(R。)动力学模型模拟了准噶尔盆地腹部莫索湾、陆南和盆地南缘等地区的地温演化历史。研究结果表明,尽管准噶尔盆地现今的地温较低,但由于受构造运动的影响,各地质历史时期的地温演化不同,盆地的古地温较现今地温高。特别是在古生代和三叠纪,地温梯度很高。古生代的地温梯度平均大于38℃/km,中生代三叠纪的地温梯度仍很高,为34.6-41℃/km.侏罗纪的地温梯度变化较大,这可能与该时期的构造运动频繁有密切关系。白垩纪以后盆地的地温梯度演化基本不变,与现今相当。
Based on the apatite fission track and vitrinite reflectance (R.) dynamics model, the evolution history of geothermal temperature in Mosul Bay, southern Luon and southern margin of Junggar basin was simulated. The results show that although the present geothermal temperature is low in Junggar Basin, the geothermal temperature evolution in different geological history periods is different due to the tectonic movement, and the ancient geothermal temperature in the basin is higher than that of today. Especially in the Paleozoic and Triassic, geothermal gradient is high. The Paleozoic geothermal gradient averaged over 38 ℃ / km, and the Mesozoic Triassic geothermal gradient was still very high at 34.6-41 ℃ / km. The Jurassic geothermal gradient changed a lot, which may be closely related to the tectonic movement during this period. After the Cretaceous, the evolution of the geothermal gradient in the basin remained basically unchanged.