摘要
本文采用空间有限元和时间有限差分法模拟了渤中盆地区域的演化历史和地下热结构,并分别计算了渤中上地幔的热隆起与浅部的沉积层对渤中盆地内部温度场的影响。文中得到的计算结果较好地解释了渤中盆地地区热流正异常的观测事实,据此,对渤中盆地在形成过程中产生的热应力与地震孕震力源的关系也进行了一些探讨。
By using the method of finite element, we have simulated the evolution and the thermal structure of the central Bohai basin area and computed the temperature field and the heat flow distribution resulting from the uplifted upper mantle and the sedimentary layer respectively in the area.The result shown in this paper is quite consistent with the observations of heat flow distribution in the Bohai and Tangshan areas. And in the later part of this paper, there is a datailed discussion on the relation between the cause of earthquakes and thermal stress produced by the uplifted upper mantle and the sedimentary layer in the Central Bohai basin area.
出处
《地震地质》
EI
CSCD
北大核心
1991年第3期283-288,共6页
Seismology and Geology
基金
地震科学联合基金
关键词
热流
地热
热隆起
渤中盆地
地震
Heat flow, Thermal transfer, Thermal uplift, Sedimentary layer, Finite element, Central Bohgi basin
