中国大陆地区大地热流数据汇编(第四版)  

Compilation of heat flow data in the continental area of China(4^(th) edition)

作　　者：姜光政 高堋 饶松[3] 张林友[1,2] 唐晓音[4] 黄方[5] 赵平[6] 庞忠和[1] 何丽娟[1] 胡圣标[1] 汪集旸[1] 

机构地区：[1]中国科学院地质与地球物理研究所岩石圈演化国家重点实验室,北京100029 [2]中国科学院大学,北京100049 [3]长江大学油气资源与勘探技术教育部重点实验室,武汉430100 [4]西安交通大学,西安710049 [5]中国地震局地球物理研究所,北京100081 [6]中国科学院青藏高原研究所,北京100101

出　　处：《地球物理学报》2016年第8期2892-2910,共19页Chinese Journal of Geophysics

基　　金：863项目"干热岩热能开发与综合利用关键技术研究"(2012AA052801)子课题;中国石化集团新星石油有限责任公司"全国干热岩资源潜力评价与示范靶区研究"(ZC0607-0007)课题资助

摘　　要：大地热流是表征地球内部热状态的重要参数,也是进行岩石圈热结构、地球动力学研究和区域地热资源潜力评价的必要参数.大地热流的测量和数据汇编是地热学研究的一项重要的基础性工作,目前我国已经分三版公开发表中国大陆地区大地热流数据862个,本文在第三版热流数据汇编的基础上,共计收集整理公开发表的热流数据345个,并在空白区开展了大地热流数据补充性测量,获得大地热流数据23个.本文将2001年以来新增的368个数据及第三版热流数据构建成中国大陆地区大地热流数据汇编(第四版).截止目前已汇编我国大陆地区热流数据1230个,其中A、B、C和D类数据分别占49.3%、34.2%、12.6%和3.9%,较第三版热流数据A类数据比重增加了2.9%.基于现有汇编数据更新了中国大陆地区大地热流测点图并进行了统计分析.相较于第三版汇编数据,热流测量空白区面积已显著减小,热流测点覆盖率低和平面分布不均一的缺陷得到改善,本次汇编填补了西藏阿里、贵州省、广西省以及吉林省的热流测量空白区.新版热流数据统计表明,中国大陆地区(含渤海海域)热流值范围为23~319mW·m^(-2),平均值61.5±13.9mW·m^(-2);除去受地下水活动影响强烈的D类数据,热流值范围30~140mW·m^(-2),平均值60.4±12.3mW·m^(-2).本次大地热流数据汇编结果显示,我国大陆地区热流分布格局总体仍表现为:东高、中低,西南高、西北低.在西太平洋板块俯冲远程效应影响下,中国东部表现为一个高热流带,自东南沿海向东北方向一直延伸到东北地区的松辽盆地、长白山一带;受控于新生代欧亚板块和印度板块碰撞影响,青藏高原高热流区主要集中在雅鲁藏布江缝合带和南北向展布的裂谷带,总体热流值向北逐渐降低,并伴随局部的高热流区,如东北缘的共和盆地;中部地区新生代以来构造活动相对微弱,为中-低热流背景.Terrestrial heat flow provides a direct surface indication of the thermal state within the Earth. It is a crucial parameter to reveal the lithospheric thermal structure, geodynamic processes and to evaluate the potential of geothermal resources. Measurements and compilations of heat flow data are considered as a fundamental work for geothermal study. Heat flow data in continental China have been published in three editions and the total number has reached 862 in 2001. Since then, no more compilation has been accomplished in the last 15 years. Upon the 3rd edition, 368 new heat flow data have been compiled in this paper as the 4th edition. We gathered 345 newly published data during 2002 to 2016, together with 23 newly measured heat flow values in the blank areas e.g. the hinter land of the Tibetan Plateau, Changbai Mountain etc. In this updated heat flow data set （4th edition）, the total number of data has reached 1230 and the data categories for A, B, C and D account for 49.3%、34.2%、12.6% and 3.9%, respectively. The heat flow values range from 30 to 140 mW·m^-2 with a mean of 60.4±12.3 mW·m^-2 excluded the data for category D. Based on the new data base, we updated the geographic distribution of heat flow sites in the continental area of China, which manifests significantly improvement on the coverage and the inhomogeneity of heat flows patial distribution. The overall heat flow pattern of in the continental area of China is featured as ＂high＂ in the eastern and southwestern areas while ＂low＂ in the central and northwestern parts.Affected by the far-field effect of the westward subduction of the pacific plate, the eastern high heat flow province extends from southeastern China to Songliao Basin and Changbai Mountain. Mainly controlled by the collision between the India Plate and the Eurasia Plate, the southwestern high heat flow province shows a belt distribution in the Yarlung-Zangbo Suture Zone in E-W direction and rift zones in S-N direction, meanwhile the values decreased from the south to

关 键 词：大地热流 数据汇编 热流测量 中国大陆 

分 类 号：P314[天文地球—固体地球物理学]