Citation: | LEI Dong, PAN Liangyun, CHEN Qiang, SUN Fuli, WANG Lisha, ZHOU Bo, YAO Yanhua, CHEN Yuanchun, CAO Haili, YIN Chao. 2025. Geological characteristics and potential of geothermal resources in the uplift mountain-type of Hainan Island. Geological Bulletin of China, 44(1): 77-90. doi: 10.12097/gbc.2023.03.041 |
Hainan Island is very rich in geothermal resources of the uplifted mountain−type, with 46 geothermal fields and hot springs discovered. Studying the geological background, geothermal geological characteristics, genesis, and resource potential is of great significance for understanding the occurrence regularity, exploration, and development of geothermal resources.
Based on comprehensive regional geological surveys, geophysics, hydrogeological, regional geological surveys and geothermal fields (hot springs) survey data, to carry out a comprehensive study on geothermal geology of the uplifted mountain−type geothermal resources in Hainan Island . a systematic analysis of geothermal geological elements, basically clear the geothermal geological characteristics, genetic model, and the potential of the resources, pointed out a favorable area for geothermal resource exploration and development.
Geothermal fields (hot springs) in the south−central uplifted mountainous−type of Hainan Island.are mainly located in the east−west and north−east near the deep−seated faults or the intersection of fractures, in the high value of the heat flow and high anomalies of constant temperature layer, broken by the fracture of the Mesozoic granite is the most important heat storage. Geothermal fields (hot springs) groundwater recharge are atmospheric precipitation, along the heat−controlled fractures and deep earth heat flow convection, heat absorption in the deep cycle process gradually formed geothermal fluid, in the fracture zone thermal storage for the enrichment of thermal mineral water body, in the cover of the weak drainage out of the surface is the formation of hot water springs. Hainan Island uplifted mountain−type geothermal resources, the total amount of recoverable thermal water of about 8.1×104 m3/d, the recoverable resources 26.17×108 kcal/d, equivalent to 126.81 MW, equivalent to the standard coal of 373.83 t/d, according to the temperature of the geothermal resources and the scale of classification, respectively, are divided into medium−temperature, low−temperature and medium−scale, small−scale geothermal resources.
The areas near or at the intersection of deep−seated faults in the southeast and northwest of Hainan Island, the high value area of geothermal heat flow, the exposed (or hidden) area of Mesozoic granite intrusion, and the areas with high surface water temperature are favorable areas for exploration and development of uplifted mountain−type geothermal resources.
[1] | Chao H X, Han X H, Yang Z H, et al. 2016. New exploration of geotectonic characteristics of Hainan Island[J]. Earth Science Frontier, 23(4): 200−211 (in Chinese with English abstract). |
[2] | Chen Y M. 2008. Present Situation of Geothermal Resource in Hainan Island and Suggestions for Development and Exploitation[J]. Scientific and Technological Management of Land and Resources, 25(6): 61−65 (in Chinese with English abstract). |
[3] | Gao F L, Yang X Q, Wu G A, et al. 2009. Characteristics of thermal springs and genesis of thermal underground waters in Hainan Island[J]. Journal of Jilin University (Earth Science Edition), 39(2): 281−287. |
[4] | Gao W, Guo Z H, Zhou J X, et al. 2020. High precision aeromagnetic characteristics and Curie depth analysis of the Hainan Island[J]. Acta Geologica Sinica, 94(11): 3249−3262 (in Chinese with English abstract). |
[5] | Hainan Geological Survey. 2017. Regional geology of Hainan Province[M]. Beijing: Geological Publishing House (in Chinese). |
[6] | Hu S B, He L J, Wang J Y. 2001. Compilation of heat flow data in The China Continental area (3rd edition)[J]. Chinese Journal of Geophysics, 44(5): 611−626 (in Chinese with English abstract). |
[7] | Jiang G Z, Gao P, Rao S, et al. 2016. Compilation of heat flow data in the continental area of China (4th edition)[J]. Chinese Journal of Geophysics, 59(8): 2892−2910 (in Chinese with English abstract). |
[8] | Lin W J, Gan H N, Wang G L, et al. 2016. Occurrence prospect of HDR and target site selection study in Southeastern of China[J]. Acta Geologica Sinica, 90(8): 2043−2058 (in Chinese with English abstract). |
[9] | Wu X J, Zhang Q, Chen C L, et al. 2015. The application of comprehensive electrical prospecting to exploration of thermal mineral water in Wuzhishan area[J]. Chinese Journal of Engineering Geophysics, 12(3): 348−353 (in Chinese with English abstract). |
[10] | Xia B D, Shi G Y, Fang Z, et al. 1991. The Late Palaeozoic rifting in Hainan Island, China[J]. Acta Geologica Sinica, 65(2): 103−115 (in Chinese with English abstract). |
[11] | Xu D. 2017. Hydrogeochemistry of geothermal field of Long Mu Bay, Hainan Province[D]. Master Thesis of East China University of Technology: 1−65(in Chinese with English abstract). |
[12] | Yang F, Ruan M, Zhang D Q, et al. 2018. Study on the geochemical characteristics of hot mineral water isotope in Haipo district, Sanya City, Hainan Province[J]. Ground water, 40(4): 15−17 (in Chinese with English abstract). |
[13] | Yang X M, Liu C N, Yang Z Z. 2004. The application of three−dimensional resistivity view to disclosing structural form of the Nantian geothermal field[J]. Geophysical & Geochemical Exploration, 28(1): 62−64 (in Chinese with English abstract). |
[14] | Zhang Y. 2019. A study of the characteristics and formation of the hot springs in Hainan Island[D]. Master Thesis of China University of Geosciences (Beijing) : 1−56(in Chinese with English abstract). |
[15] | Zhang Y L. 2019. Analysis of geothermal geological conditions in the area of Liudongying of Huairen sag in Datong Basin[J]. Underground Water, 41(5): 15−17(in Chinese with English abstract). |
[16] | Zhao T. 2016. Characteristics and evaluation of geothermal resources in Hainan Province [D]. Master Thesis of Guilin University of Technology: 1−79(in Chinese with English abstract). |
[17] | 晁会霞, 韩孝辉, 杨志华, 等. 2016. 对海南岛大地构造特征的新探索[J]. 地学前缘, 23(4): 200−211. |
[18] | 陈颖民. 2008. 海南岛地热资源现状及勘查开发利用建议[J]. 国土资源科技管理, 25(6): 61−65. doi: 10.3969/j.issn.1009-4210.2008.06.013 |
[19] | 高芳蕾, 杨小强, 吴国爱, 等. 2009. 海南岛温泉特征与地下热水成因[J]. 吉林大学学报(地球科学版), 39(2): 281−287. |
[20] | 高维, 郭志宏, 周坚鑫, 等. 2020. 海南岛高精度航磁特征与居里等温面深度分析[J]. 地质学报, 94(11): 3249−3262. doi: 10.3969/j.issn.0001-5717.2020.11.006 |
[21] | 海南省地质调查院. 2017. 中国区域地质志·海南志[M]. 北京: 地质出版社. |
[22] | 胡圣标, 何丽娟, 汪集旸. 2001. 中国大陆地区大地热流数据汇编(第三版)[J]. 地球物理学报, 44(5): 611−626. doi: 10.3321/j.issn:0001-5733.2001.05.005 |
[23] | 姜光政, 高堋, 饶松, 等. 2016. 中国大陆地区大地热流数据汇编(第四版)[J]. 地球物理学报, 59(8): 2892−2910. |
[24] | 蔺文静, 甘浩男, 王贵玲, 等. 2016. 我国东南沿海干热岩赋存前景及与靶区选址研究[J]. 地质学报, 90(8): 2043−2058. |
[25] | 吴小洁, 张前, 陈长亮, 等. 2015. 综合电法勘探在五指山地区找热矿水中的应用[J]. 工程地球物理学报, 12(3): 348−353. |
[26] | 夏邦栋, 施光宇, 方中, 等. 1991. 海南岛晚古生代裂谷作用[J]. 地质学报, 65(2): 103−115. |
[27] | 徐单. 2017. 海南省龙沐湾地热田的水文地球化学研究[D]. 华东理工大学硕士学位论文: 1−65. |
[28] | 杨峰, 阮明, 张东强, 等. 2018. 海南省三亚市海坡地区热矿水同位素地球化学特征研究[J]. 地下水, 40(4): 15−17. |
[29] | 杨兴沐, 刘川宁, 杨忠政. 2004. 三维电阻率视图揭示南田地热田构造形态[J]. 物探与化探, 28(1): 62−64. |
[30] | 张颖. 2019. 海南岛温泉特征及成因研究[D]. 中国地质大学(北京)硕士学位论文: 1−56. |
[31] | 张玉良. 2019. 大同盆地怀仁凹陷柳东营一带地热地质条件分析[J]. 地下水, 41(5): 15−17. |
[32] | 赵童. 2016. 海南省地热资源特征及评价[D]. 桂林理工大学硕士学位论文: 1−79. |
[33] | 中华人民共和国国家质量监督检验检疫总局, 中国国家标准化管理委员会. 2011. 地热资源地质勘查规范(GB/T11615—2010)[S]. 北京: 中国标准出版社. |
Distribution map of fault system, regional tectonic units and geothermal fields (hot springs) in Hainan Island
Contour map of constant temperature in Hainan Island
Contour map of heat flow in Hainan Island
Piper diagram of hydrochemical types in typical geothermal fields in Hainan Island
Geothermal geological map (a) and genetic model ideograph of Guantang geothermal field (b)