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    刘伟朋, 贾小丰, 张子纯, 张秋霞, 马光伟, 杨骊, 李胜涛. 环首都山区温泉发育特征与开发利用前景[J]. 中国地质. DOI: 10.12029/gc20230708001
    引用本文: 刘伟朋, 贾小丰, 张子纯, 张秋霞, 马光伟, 杨骊, 李胜涛. 环首都山区温泉发育特征与开发利用前景[J]. 中国地质. DOI: 10.12029/gc20230708001
    LIU Weipeng, JIA Xiaofeng, ZHANG Zichun, ZHANG Qiuxia, MA Guangwei, YANG Li, LI Shengtao. Formation characteristics of hot springs and its development prospects in mountain areas around the capital of China[J]. GEOLOGY IN CHINA. DOI: 10.12029/gc20230708001
    Citation: LIU Weipeng, JIA Xiaofeng, ZHANG Zichun, ZHANG Qiuxia, MA Guangwei, YANG Li, LI Shengtao. Formation characteristics of hot springs and its development prospects in mountain areas around the capital of China[J]. GEOLOGY IN CHINA. DOI: 10.12029/gc20230708001

    环首都山区温泉发育特征与开发利用前景

    Formation characteristics of hot springs and its development prospects in mountain areas around the capital of China

    • 摘要:研究目的】环首都山区属于京津冀生态涵养区,包括集中连片特困区,温泉资源较丰富,但勘查开发程度较低,开展温泉分布规律和发育特征研究,对于山区地热资源的勘查开发具有一定的指导意义。【研究方法】本文在收集京津冀山区温泉和深部构造资料基础上,叠加分析,揭示了温泉分布与深部构造热背景的联系。结合补充调查、样品采集及综合研究,总结温泉发育特征,并深入探讨了温泉热源与成因,因地制宜提出研究区温泉开发利用前景。【研究结果】结果表明:温泉主要沿NE、EW向深大断裂呈带状或串珠状分布,研究区90%温泉分布在莫霍面深部构造变异带内。温泉温度与居里面埋深具有一定的相关性,燕山北部高温温泉区居里面埋深20 km左右,燕山与太行山交接带较高温温泉区居里面埋深22~24 km,太行山及燕山东南部低温温温泉区居里面埋深22~26 km;温泉热源主要来自地幔热或―低速-高导层‖,上地幔底辟体和深大断裂为深部热源的上涌提供了良好的通道;在区域尺度上,温泉出露温度与循环深度不存在直接对应关系,山间盆地沉积岩储层热储温度较低,温泉流量较大,最高可达约120 m3/h;变质岩热储温度一般大于100℃,流量较小。研究区温泉水普遍具有医疗开发利用价值,其中,燕山北部和山间盆地,具有较好的供暖潜力,承德七家-茅荆坝等地区可进一步向热电一体化方向发展。【结论】环首都山区温泉分布及发育特征受深部构造和区域地质结构影响明显,在燕山北部和山间盆地区具有较好的开发利用前景。

       

      Abstract: The paper is the result of geothermal geology survey engineering. ObjectiveThe mountainous areas surrounding the capital city belong to the ecological conservation area of Beijing-Tianjin-Hebei, including the contiguous areas of extreme poverty, and are rich in hot spring resources, but the degree of exploration and development is low. It is of certain guiding significance to carry out research on the distribution pattern and development characteristics of hot springs for the exploration and development of geothermal resources in mountainous areas. MethodsIn this paper, based on the collection of information on hot springs and deep tectonics in the mountainous areas of Beijing, Tianjin and Hebei, superimposed analysis reveals the connection between hot spring distribution and deep tectonic thermal background, and explores in depth the hot spring heat source and its formation. Combined with supplementary surveys, sample collection and comprehensive research, the development characteristics of hot springs were summarized, and prospects for hot spring development and utilization in the study area were proposed according to local conditions. ResultsThe results show that hot springs are mainly distributed along NE and EW deep major fractures in the form of bands or beads, 90% of the hot springs are distributed within the deep structural variation zone of the Moho surface in the study area. The temperature of hot springs has a certain negative correlation with the depth of dwelling, the depth of dwelling in the high hot spring area in the northern Yanshan being about 20km, the depth of dwelling in the relatively high hot spring area in the Yanshan-Taihang Mountains junction zone being about 22~24 km and the depth of dwelling in the low hot spring area in the southeast Yanshan being 22~26 km; the heat source of hot springs mainly comes from the mantle heat or "low-velocity-high-conductivity layer", and the upper mantle diapirs and deep large faults provide good channels for the upwelling of deep heat sources; On the regional scale, there is no direct correspondence between the hot spring outcrop temperature and the depth of circulation, and the thermal reservoir temperature of sedimentary rock reservoirs in the intermountain basin is low, with a large flow rate of hot springs, up to about 120 m3/h. The thermal reservoir temperature of metamorphic rocks is generally greater than 100℃, with a smaller flow rate. The hot spring water in the study area generally has medical development and utilization value, among which, the northern Yanshan and intermountain basins, have a better potential for space heating, and areas such as Qijia-Maojingba can be further developed in the direction of thermol-electric integration. ConclusionsThe distribution and development characteristics of hot springs in the mountains area around the capital city are influenced by the deep tectonic and regional geological structure. The northern Yanshan Mountains and intermountain basins have good development and utilization prospects.

       

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