【摘要】 本文阐述了地热场在冀中—下辽河拗陷和临清拗陷及东邻地区呈现为高值,汾谓断陷带也较高,在渤中拗陷和郯庐断裂带更高;在燕山—太行山隆起区却呈现为低值,周口拗陷和鲁西隆起区也较低;燕山山前地带介于二者之间;华北大地热流划分8个区域取平均值为1.55HFU。提出华北四个区域的地壳、上地幔热结构,分区计算沉积岩层、花岗岩质层和玄武岩质层底部的温度和热流值;并用四个地区的平均热流值推导出该区的岩石圈厚度和底部温度。分析了地热场与地质及其它地球物理场的关系;重点探讨了地球内热与地震孕育和发生的内在联系。更多还原

【Abstract】 This paper describes the characteristics of the geothermal field in North China: high value at the Jizhong-Xialiaohe depression and Linqing depression as well as their east neighboring region, and also high value at the Fenwei fault depression zone, and the highest value at thhe middle Bohai depression and the Tanlu fault zone, low value at the Yanshan - Taihangshan uplifting region, also lower value at the Zhoukou depression and Luxi uplifting region, an in-between value at the fore area of Yanshan mountain. The value of geothermal heat flow in with Chian averaged over the divided eight regions is 1. 55HFU.The thermal structure of crust and upper mantle at the four regions in North China has been suggested . The temperature and heat flow values at the bottom part of sedimentary, granitoids and basalt layers have been estimated respectively for the four regions. The lithosphere thickness and bottom temperature of this region have been derived by making use of the averaged heat flow of the four regions。An analysis has been made on the relations between the geothermal field and the geology and other geophysical field. The emphasized discussion is on the internal relations between the earth’ s inside heat and the prepartory process and occurrence of an earthquake。更多还原