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| 基金项目：南昌市水文地质与优质地下水资源开发利用重点实验室科研基金项目“基于电性结构模型的岩石圈温度场模拟研究”（20232C23） |
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| 摘要： |
| 开展超深层地温场特征研究对认识深部热源属性和温泉成因机制具有重要的科学意义。以漳州盆地及其邻区为例，基于地壳二维地震分层结构，通过分层模拟技术，运用稳态热传导方程，揭示该地区的地壳温度场特征。结果表明：区内地壳温度为22～1 300 ℃，局部存在莫霍面及上地幔隆起；温泉形成机制具有双重控制特征，其热源既源自地下水长期运移过程中广域花岗质围岩的热交换作用，也受莫霍面局部隆起、提供深大断裂带活动的耦合控制。这种构造-热耦合过程通过增强壳幔热流交换效率、提供深部热物质上涌通道，明显影响地热系统的空间展布与热储特征；从干热岩开发的角度看，干热岩勘探深度需＞5 km。研究成果可为该区域及类似地区深部地热资源的勘查与可持续开发利用提供参考。 |
| 关键词：超深层 稳态热传导 数值模拟 地温场 漳州盆地及其邻区 |
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| Abstract: |
| Understanding the characteristics of the ultra-deep geothermal field in the Zhangzhou Basin and its adjacent areas holds great scientific significance for interpreting deep heat sources and the genetic mechanisms of local hot springs. Using a two-dimensional seismic crustal structural model, this study reveals the crustal temperature distribution through a layered simulation technique based on the steady-state heat conduction equation. The results show crustal temperatures ranging from 22 to 1 300 ℃, with localized Moho uplifts. The formation mechanism of hot springs in the study area is dually controlled: their thermal energy originates from heat exchange between long-term, deeply circulating groundwater and the extensive granitic wall rocks, and is simultaneously influenced by the coupled effects of localized Moho uplifts and deep-seated fault activity. This tectono-thermal coupling process significantly affects the spatial distribution of the geothermal system and its reservoir characteristics by enhancing the efficiency of crust-mantle heat flow and providing conduits for the upwelling of deep thermal materials. From the perspective of hot dry rock (HDR) exploration, the drilling depth for HDR must exceed 5 km. The results can serve as a reference for the exploration and sustainable development of deep geothermal resources in this region and in analogous areas. |
| Keywords:ultra-deep layer steady-state heat conduction numerical simulation geothermal field Zhangzhou Basin and its adjacent areas |
| 邱修权,叶海龙,武超峰,等.漳州盆地及其邻区超深层地温场特征[J].地质学刊,2026,50(2):182-188 |
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