基于地质年代与热流关系的中国陆区热流分布  

Heat Flow Distribution in the Continental Area of China Based on the Relationship between Geologic Age and Heat Flow

作　　者：王亚茹 蔺文静[2,3] 朱传庆 刘峰[2,3] 习宇飞[2,3] Wang Yaru;Lin Wenjing;Zhu Chuanqing;Liu Feng;Xi Yufei(College of Geosciences,China University of Petroleum,Beijing 102249,China;Institute of Hydrogeology and Environment Geology,Shijiazhuang 050061,China;Technology Innovation Center of Geothermal&Hot Dry Rock Exploitation and Development,Shijiazhuang 050061,China;State Key Laboratory of Petroleum Resources and Prospecting,China University of Petroleum,Beijing 102249,China)

机构地区：[1]中国石油大学地球科学学院,北京102249 [2]中国地质科学院水文地质环境地质研究所,河北石家庄050061 [3]自然资源部地热与干热岩勘察开发技术创新中心,河北石家庄050061 [4]中国石油大学油气资源与探测国家重点实验室,北京102249

出　　处：《地球科学》2025年第2期763-781,共19页Earth Science

基　　金：国家自然科学基金面上项目(No.41874100);重点研发计划项目(No.2018YFA0404104);全国大地热流值测量与靶区优选(No.DD20190128);全国地热资源调查与区划(No.DD20221676)。

摘　　要：大地热流是表征地球内部热状态传输到表层的重要参数,大地热流分布是地热研究中的基础工作.我国陆区大地热流数据质量差异大且空间分布不均匀,对大地热流的科学预测是开展大地热流及相关研究的重要基础.在地质年代与热流关系的基础上,采用地理信息系统(GIS)技术,利用中国陆区数字地质图定义不同地质区域的热流值,对热流离散性较大的地质年代结合构造分区统计赋值,使热流预测更符合我国构造−热背景.热流预测采用1°×1°等经度网格将热流的影响范围约束在网格单元中.我国陆区的大地热流预测平均值为63.54 mW/m^(2),中值为62.32 mW/m^(2),热流分布离散性较小.预测结果接近我国构造−热背景,为热流数据空白区的热流值预测提供科学依据.Terrestrial heat flow is an important parameter to characterize the heat transfer from the earth′s interior to the surface.The distribution of terrestrial heat flow is the basic work in geothermal research.The data quality of terrestrial heat flow varies greatly and the spatial distribution of heat flow data in China is uneven.The scientific prediction of continental heat flow is an essential basis for the development of continental heat flow and related research.Based on the relationship between geologic age and heat flow,this paper uses geographic information system(GIS)technology to define heat flow values in different geological regions by using digital geological map of the Chinacontinentalarea,and assigns statistical values to geologic age with large heat flow dispersion combined with tectonic subdivision,so that heat flow prediction is more in line with Chinese tectonic-thermal background.Heat flow prediction is based on 1×1 degree equal longitude grid to restrict the influence range of heat flow in grid cell.The predicted mean value of terrestrial heat flow in China continental area is 63.54 mW/m^(2),and the median value is 62.32 mW/m^(2),with small discreteness of heat flow distribution.The prediction results in this paper are close to the tectonic-thermal background in China,which provides a scientific basis for the prediction of heat flow in the blank area of heat flow data.

关 键 词：大地热流 地质年代 构造分区 热流预测 GIS 

分 类 号：P314[天文地球—固体地球物理学]