【摘要】 利用地温梯度资料，编制了甘宁青地区地温梯度分布图，估算了居里温度面。本区地温梯度平均变化范围２０～３５℃／ｋｍ ，居里温度面的深度约为１６～２８ ｋｍ 。讨论了居里温度面与地震的关系，得出各地区之间地壳温度场的差异所产生的应力，可能是地震发生的一个重要原因更多还原

【Abstract】 A compilation of geothermal gradient map was ob tained by using some related data of geothermal gradient and the Curie isotherma l surfaces were calculated.The geothermal gradients in different regions changed from 20℃/km to 35℃/km in the investigated area,and the depths of these isothe rmal surfaces in different regions changed from 16km to 28km below sea level.A d iscussion was made on the relationship between the isothermal surface and the oc currence of earthquakes.It was found that the stress due to the difference of te mperatures between two adjacent regions was very important for earthquake occurr ences.更多还原