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物探与化探  2022, Vol. 46 Issue (6): 1388-1395    DOI: 10.11720/wtyht.2022.0032
  地质调查·资源勘查 本期目录 | 过刊浏览 | 高级检索 |
相山铀矿田热结构特征与成矿关系——以邹家山矿床为例
银涌兵1,2(), 李海英3, 卢腾1,2, 韩飘平1,2, 孔德旭1,2, 万环环1,2, 庞文静1,2, 吴志春4
1.江西省地质局 核地质大队,江西 鹰潭 335001
2.江西省能源矿产地质调查研究院,江西 南昌330100
3.江西省地质调查勘查院 矿产勘查所,江西 南昌 330038
4.东华理工大学,江西 南昌330000
Relationships between thermal structure characteristics and mineralization of the Xiangshan uranium ore field:A case study of the Zoujiashan deposit
YIN Yong-Bing1,2(), LI Hai-Ying3, LU Teng1,2, HAN Piao-Ping1,2, KONG De-Xu1,2, WAN Huan-Huan1,2, PANG Wen-Jing1,2, WU Zhi-Chun4
1. Nuclear Geology Brigade of Jiangxi Geological Bureau, Yingtan 335001, China
2. Jiangxi Energy and Mineral Geological Survey and Research Institute, Nanchang 330100, China
3. Mineral Exploration Institute of Jiangxi Geological Survey and Exploration Institute, Nanchang 330038, China
4. East China University of Technology, Nanchang 330000, China
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摘要 

相山矿田是我国最大的火山岩型铀矿田,区内铀矿资源丰富,地热地质条件较好,但区内热结构及成矿特征研究程度较低。为有效解决这一问题,以矿田西部邹家山超大型铀矿床为典型区,综合地热地质、地温测井、地球物理勘探、探采对比、取样测试等成果,系统研究了矿田热结构特征,建立了热结构模型,分析了成热与成矿的关系。结果表明:研究区热结构属“热幔冷壳”型,符合中国东部地区热结构特征,较高的地壳热流与铀源体及铀矿体密切相关,放射性核素衰变产热是地壳热流主要来源;热异常受断裂构造控制明显,热源与铀源具有较强一致性,地温梯度异常是区内找矿标志之一,4 ℃/100 m为矿床定位标志,地温梯度变化幅度可作富大矿体的定位标志。本次研究为该区地热地质及成矿地质研究提供了有效技术支撑。
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银涌兵
李海英
卢腾
韩飘平
孔德旭
万环环
庞文静
吴志春
关键词 ： 相山铀矿田,  邹家山,  热结构,  成矿关系    
Abstract：

The Xiangshan ore field is the largest volcanogenic uranium ore field in China with abundant uranium resources and favorable geothermal geological conditions. However, few studies have been conducted on its thermal structure and mineralization characteristics,In order to solve this problem effectively. Taking the Zoujiashan super-large uranium deposit in the west of the ore field as a typical area, this study systematically investigated the thermal structure characteristics of the ore field, established the thermal structure model, and analyzed the relationships between heat generation and mineralization. The results are as follows. The thermal structure in the study area is of the hot-mantle and cold-crust type, which is in line with the characteristics of thermal structures in eastern China. The higher crustal heat flow in the area is closely related to the uranium source and uranium ore bodies, and the decay heat generation of radionuclides is the main source of the crustal heat flow. The thermal anomalies in the area are obviously controlled by faults, and the heat source is highly consistent with the uranium source. The geothermal gradient anomalies are one of the prospecting criteria of the area. Moreover, 4 ℃/100 m is the positioning marker of deposits, and the variation amplitude of geothermal gradients can be used as the positioning marker of rich and large ore bodies. This study provides effective technical support for the study of geothermal geology and metallogenic geology in this area.
Key words： Xiangshan uranium ore field    Zoujiashan    thermal structure    mineralization relationship
收稿日期: 2022-01-26      修回日期: 2022-04-15      出版日期: 2022-12-20
ZTFLH:  P631  
基金资助:江西省地质局科技创新基金项目(赣核地科201993-6);江西省地质局发展引导资金项目(2020YDZ01);中国铀业有限公司—东华理工大学核资源与环境国家重点实验室联合创新基金(NRE2021-08);江西省技术创新引导类计划(20212AEI91008)
作者简介: 银涌兵(1985-),男,四川绵阳人,高级工程师,主要从事地球物理相关工作。Email:ntyybice@163.com
引用本文:   
银涌兵, 李海英, 卢腾, 韩飘平, 孔德旭, 万环环, 庞文静, 吴志春. 相山铀矿田热结构特征与成矿关系——以邹家山矿床为例[J]. 物探与化探, 2022, 46(6): 1388-1395.
YIN Yong-Bing, LI Hai-Ying, LU Teng, HAN Piao-Ping, KONG De-Xu, WAN Huan-Huan, PANG Wen-Jing, WU Zhi-Chun. Relationships between thermal structure characteristics and mineralization of the Xiangshan uranium ore field:A case study of the Zoujiashan deposit. Geophysical and Geochemical Exploration, 2022, 46(6): 1388-1395.
链接本文:  
https://www.wutanyuhuatan.com/CN/10.11720/wtyht.2022.0032      或      https://www.wutanyuhuatan.com/CN/Y2022/V46/I6/1388
Fig.1  相山矿田地质背景及大地热流分布
序号 地层代号 深度范围/m 地温梯度/
(℃·km-1)		 热导率/
(W·m-1·K-1)		 实测热流值/
(mW·m-2)		 校正热流值/
(mW·m-2)		 资料来源
1 K1e2 100~260 20.17±0.8 3.25±0.2 65.6 — 周文斌等,1992[9]
2 K1d2 280~370 22.00±1.7 3.23±0.1 71.2 67.6
3 K1e2 100~300 26.84±1.1 3.02 101.0 83.5
4 K1e2 320~430 25.90±1.7 3.02 78.0 68.7
5 K1e2 440~940 32.20±1.4 3.14±0.2 101.0 81.0
Table 1  相山矿田大地热流统计
Fig.2  邹家山矿床地温梯度平面等值线
结构层 顶界面深度/km 底界面深度/km Di/km Vp/(km·s-1) Ai/(μW·m-3) qi/(mW·m-2) 热流值/(mW·m-2)
地表 — — — — — — 83.50(q0)
上地壳 0 0.89 0.89 — 4.39 3.91 79.59
0.89 1.46 0.57 — 3.68 2.10 77.49
1.46 6.12 4.66 — 1.51 7.04 70.45
中地壳 6.12 10.83 4.71 5.92 1.32 6.22 64.23
10.83 13.89 3.06 6.07 0.88 2.69 61.54
13.89 16.69 2.80 6.09 0.83 2.32 59.22
16.69 22.74 6.05 6.10 0.81 4.90 54.32
下地壳 22.74 33.00 10.26 6.21 0.60 6.16 48.16
Table 2  研究区岩石圈热结构计算结果
Fig.3  矿床生热率模型及热结构特征
Fig.4  研究区地温与矿体平面投影
Fig.5  研究区地温与矿体关系剖面
1—下白垩统鹅湖岭组碎斑熔岩;2—下白垩统打鼓顶组流纹英安岩;3—断裂构造;4—地层界线;5—工业矿体;6—地温等值线(℃);7—蚀变带范围;8—钻孔
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