西藏续迈地热田“热水河”深部热源通道及其成因  

Deep heat source channel of“hot river”in Xumai geothermal field,Tibet and its genetic mechanism

作　　者：李冬怀 程纪星[2] 万汉平[2] 谢迎春 郝伟林[2] LI Donghuai;CHENG Jixing;WAN Hanping;XIE Yingchun;HAO Weilin(China National Nuclear Power Co.,Ltd.,Lhasa 850012,China;Beijing Research Institute of Uranium Geology,Beijing 100029,China;CNNP Kunhua Energy Development Co.,Ltd.,Hangzhou 311113,China)

机构地区：[1]中核(西藏)实业发展有限公司,拉萨850012 [2]核工业北京地质研究院,北京100029 [3]中核坤华能源发展有限公司,杭州311113

出　　处：《世界地质》2022年第2期334-341,共8页World Geology

基　　金：中核集团集中研发项目(中核科发[2019]419号)。

摘　　要：在研究分析西藏续迈地热田深部地球物理探测成果基础上,以音频大地电磁测深(AMT)和大地电磁测深(MT)成果为依据,认为盆地东侧隐伏的深大构造是“热水河”的深部热源通道,由其将深部地热流体运移至浅部,并贮存于浅部破碎带和第四系内;而后,在地应力作用下热水沿次级断裂构造溢出地表,并与地表沼泽冷水混合,形成“热水河”。Based on the results of the deep geophysical exploration(i.e.,audio frequency magnetotelluric sounding and magnetotelluric sounding)in the Xumai geothermal field,the authors consider that the buried deep structure on the east side of the basin is the deep heat source channel of the“hot river”,by which the deep geothermal fluid was transported to the shallow part and stored in the shallow fracture zone and Quaternary strata.Then,the hot water overflowed the surface along the secondary fault structure and mixed with the cold water from the surface to form a“hot river”.

关 键 词：续迈地热田 热水河 深部热源通道 

分 类 号：P631[天文地球—地质矿产勘探] P314[天文地球—地质学]