蔚县盆地地热成因分析  

Analysis on Geothermal Genesis of Yuxian Basin

作　　者：周江 ZHOU Jiang(No. 4 Geological Team of Hebei Coalfield Geological Bureau, Xuanhua, Hebei,075100)

机构地区：[1]河北省煤田地质局第四地质队

出　　处：《煤炭科技》2019年第5期6-10,共5页Coal Science & Technology Magazine

摘　　要：蔚县盆地地处天山—阴山纬向构造体系与南北向构造带的交汇处,是华北陆块北缘中生代以来强烈的地壳变动与地质演化造就而成的内陆山间断陷盆地,断裂构造发育,部分断裂为地下水深循环提供对流通道和保存空间。近年来,沿盆地南部边缘的蔚县南山山前一带,成功揭露地热水(出水温度>40℃),进一步证实蔚县南山断层(蔚县—延庆断裂西段)是控热断裂,与其他断裂构造一起,影响盆地地层布局与地下热流活动方向,对地下热资源的形成起主导作用。Yuxian Basin is situated at the intersection of Tianshan-Yinshan latitudinal structural system and North-South structural belt. It is an inland mountain fault basin formed by strong crustal movement and geological evolution since Mesozoic in the northern margin of North China block. The fault structure is well developed, and some faults provide circulation channels and preservation space for deep groundwater circulation. In recent years, geothermal water (>40℃)has been successfully exposed along the front of Nanshan Mountain in Yuxian County along the southern margin of the basin, which further proves that Nanshan fault in Yuxian County (west section of Yuxian-Yanqing fault) is a heat-controlling fault. Along with other fault structures, it affects the distribution of the basin strata and the direction of underground heat flow activity, and plays a leading role on the underground heat resources.

关 键 词：华北陆块 蔚县盆地 纬向构造体系 断裂 成热成因 成热模型 

分 类 号：P314[天文地球—固体地球物理学]