相山矿田低温热水及其与铀矿化关系

邵飞

相山矿田低温热水及其与铀矿化关系

邵飞^{1, 2,}

1.
中国地质大学研究生院，湖北武汉 430074
2.
核工业270研究所，江西南昌 330200

基金项目:

国防科工委“八五”期间科技攻关项目 49-5·1

详细信息

作者简介:
:邵飞(1963 -), 男, 高级工程师, 在读博士研究生, 从事铀矿地质勘查及科研工作. E-mail: S f270@163.

中图分类号: P611
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出版历程
- 收稿日期: 2004-07-15
- 刊出日期: 2005-03-25

Low-Temperature Hot-Water in Xiangshan Orefield and Its Relation with Uranium Mineralization

SHAO Fei^{1, 2
,}

1.
Graduate School, China University of Geosciences, Wuhan 430074, China
2.
No. 270 Institute of CN NC, Nanchang 330200, China

摘要

摘要: 从矿田现代温热水入手, 运用水文地球化学、同位素水文地质等手段, 结合地热基础理论与方法, 剖析了典型矿床地温特征, 对温热水的补给源、热源进行了研究; 结合铀成矿机理分析, 探讨了热水与铀成矿作用的关系.认为相山矿田温热水属隆起断裂型热水, 大气降水为温热水的主要补给源, 地下水深循环及放射性生热为温热水获得热量的主要途径, 热水活动对铀成矿作出了重要贡献, 铀源主要来自水-岩作用, 形成了受基底构造和火山盖层构造联合控制的地温高场、温热水及铀矿化于一体的空间组合.
- 低温热水 /
- 水文地球化学 /
- 同位素 /
- 铀矿化 /
- 水-岩作用
Abstract: Xiangshan uranium orefield is one of the largest volcanic rock type hydrothermal uranium orefield in China. Beginning with modern warm hot-water in the orefield, and applying hydrogeochemistry and isotopic hydrogeology, this paper (analyzes) the geothermal characteristics of typical deposits, studies supply and heat sources of warm hot-water, and discusses the relation between hot-water and uranium mineralization according to the mechanism of uranium metallogenesis. The warm hot-water in Xiangshan orefield is hot-water of uplift fault type, meteoric water is the major supply source of warm hot- (water); deep circulation of groundwater and radioactive heat are the main channels for warm hot-water to obtain heat energy; hot-water activity made an important contribution to uranium metallogenesis; the uranium source mainly comes from water-rock interaction; a space unit is formed on integration with geothermal high field, warm hot-water and uranium mineralization which are controlled by base tectonics and volcano cover structure.
- low-temperature hot-water /
- hydrogeochemistry /
- isotope /
- uranium mineralization /
- water-rock interaction

HTML全文

图 1 相山火山盆地

1.砂砾岩; 2.鹅湖岭组碎斑熔岩; 3.打鼓顶组流纹英安岩; 4.打鼓顶组砂岩、砂砾岩; 5.次斑状花岗岩; 6.花岗岩; 7.安源组砂砾岩、砂岩; 8.浅变质岩; 9.断裂; 10.火山塌陷构造; 11.火山层间离张构造; 12.火山口; 13.大型铀矿床; 14.中小型铀矿床

Fig. 1. Volcanic basin in Xiangshan

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图 2 相山矿田6122矿床31线井温剖面示意

1.鹅湖岭组碎斑熔岩; 2.鹅湖岭组晶屑玻屑凝灰岩; 3.打鼓顶组流纹英安岩; 4.含水的断裂及裂隙构造; 5.等温线(℃); 6.钻孔

Fig. 2. Schematic map of logging temperature in line 31 cross section of No. 6122 deposit in Xiangshan orefield

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图 3 相山矿田温热水的氢、氧同位素组成

Fig. 3. Istope formation of hydrogen and oxygen in warm hot-water in Xiangshan orefield

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表 1 相山矿田若干铀矿床地温梯度值

Table 1. Geothermic gradie nt of several ur anium deposits in Xiangshan orefield

表 2 温热水的铀同位素比值

Table 2. Ratio of uranium isotope in warm hot-water

表 3 相山矿田GDCC矿床蚀变岩石的微量元素（据黄志章等，1999）

Table 3. Content of trace elements in altered rock of No.6122 deposit in Xiangshan orefield wB/10^-6

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