江西省地热资源赋存特征及潜力评价  

Occurrence features of geothermal resources and geothermal potential assessment of Jiangxi Province

作　　者：王安东[1,2] 孙占学[1,3] 蔺文静[4] 杨旎 叶海龙 童珏 王运 WANG Andong;SUN Zhanxue;LINWenjing;YANG Ni;YE Hailong;TONG Jue;WANG Yun(State Key Laboratory of Nuclear Resources and Environment,East China University of Technology,Nanchang 330013,Jiangxi,China;College of Earth Sciences,East China University of Technology,Nanchang 330013,Jiangxi,China;School of Water Resources&Environmental Engineering,East China University of Technology,Nanchang 330013,Jiangxi,China;Institute of Hydrogeology and Environmental Geology,Chinese Academy of Geological Sciences,Shijiazhuang 050061,Hebei,China;JiangxiInstitute of Survey and Design,Nanchang 330095,Jiangxi,China;Group 901,Jiangxi Provincial Bureau of Geology,Pingxiang 337000,Jiangxi,China)

机构地区：[1]东华理工大学核资源与环境国家重点实验室,江西南昌330013 [2]东华理工大学地球科学学院,江西南昌330013 [3]东华理工大学水资源与环境工程学院,江西南昌330013 [4]中国地质科学院水文地质环境地质研究所,河北石家庄050061 [5]江西省勘察设计研究院,江西南昌330095 [6]江西省地质局九〇一地质大队,江西萍乡337000

出　　处：《中国地质》2023年第6期1646-1654,共9页Geology in China

基　　金：国家重点研发计划项目(2018YFA0404104);国家自然科学基金项目(41763005);核资源与环境国家重点实验室自主基金(Z1912);中国地质调查局项目“全国大地热流值测量与靶区优选”(DD20190128);江西省科技厅重点研发计划项目(20203BBG72W011);东华理工大学研究生创新基金(YC2021-S610)联合资助。

摘　　要：【研究目的】江西省地热资源丰富,具有较好的地热资源开发利用潜力。【研究方法】本文介绍了江西省地热资源分布特征、地热成因类型、地热水化学特征,并评估了各设区市的地热资源潜力。【研究结果】江西省地热资源主要可分为隆起山地循环对流型和沉积盆地型两种类型,其中隆起山地循环对流型占95%以上。隆起山地循环对流型地热系统主要分布在九连山、武功山、九岭山和罗霄山脉一带,主要受控于周围的断裂构造尤其是深大断裂构造,通常出露在两大断裂交汇的位置。【结论】江西省地热资源分布基本与地温梯度、大地热流和深部温度格局特征相吻合,地热流体水化学类型以HCO_(3)-Na型为主,矿物度较低,以淡水为主,地热流体主要来源于大气降水。地热资源潜力评价结果显示赣州和宜春地热资源最为丰富,地热资源量均超过45000×10^(10)kJ。This paper is the result of geothermal geological survey engineering.[Objective]Jiangxi Province,located in the Eastern China,is very rich in geothermal resources and possesses excellent potential for geothermal resources development and utilization.[Methods]In the present study,the distribution features,type and hydrogeochemistry characteristics of geothermal resources and geothermal potential assessment of every city in Jiangxi Province is presented.[Results]The geothermal resources of Jiangxi Province can be divided into circulation type hydrothermal system in the uplifted mountainous area and sedimentation basin type,of which the former has a high proportion of 95%.Circulation type hydrothermal system in the uplifted mountainous area is mainly distributed in Jiulianshan Mountain,Jiulingshan Mountain,Wugongshan Mountain and Luoxiaoshan Mountain Range,which is controlled by the deep faults surrounding the mountain.[Conclusions]The distribution features of geothermal resources in Jiangxi Province is in agreement with the distribution features of geothermal gradient,surface heat flow and deep temperature field,and hydrogeochemistry type is dominated by HCO_(3)-Na type with relatively lower mineralization degree and salinity and is mainly sourced from precipitate water.The results of geothermal potential assessment suggest that Ganzhou and Yichun Cities possess the most abundant geothermal resources with each abundance being larger than 45000×10^(10) kJ.

关 键 词：地热资源 赋存特征 潜力评价 隆起山地循环对流型地热 地热地质调查工程 江西省 

分 类 号：P314[天文地球—固体地球物理学]