碰撞造山带地壳上地幔热结构研究——以东南沿海地区石城—惠安剖面为例

THERMAL STRUCTURE ANALYSIS OF CRUST AND UPPER MANTLE IN A COLLISION OROGENIC BELT——TAKE THE SHICHENG-HUIAN SECTION IN THE COASTAL AREA, SE CHINA ASAN EXAMPLE

由于碰撞造山带具有的地壳结构的复杂性,必须采用新的研究方法来分析其热结构。本文以东南沿海地区为例,根据地震波速与生热率之间的相关性,分析了碰撞造山带的地壳上地幔热结构特征。取得了地壳中的生热率分布状态。在此基础上,讨论了岩石圈热状态与构造发展历史的关系,并进一步揭示了东南沿海地区碰撞造山带的构造热演化历史。

Because a collision orogenic belt has a complicated crustal structure, new methods have to be adopted for thermal state analysis. According to the relationship between the seismic velocity and heat generation of rocks, this paper studies the thermal structure of crust and upper mantle of a collision orogenic belt in the coastal area, SE China. The relationship between lithospherical thermal state and geotectonic evolution is also discussed. At last the author reconstructs the geothermal evolution history of the collision orogenic belt in the coastal area, SE China.