相山矿田低温热水及其与铀矿化关系  

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

作　　者：邵飞[1] 

机构地区：[1]中国地质大学研究生院

出　　处：《地球科学（中国地质大学学报）》2005年第2期206-210,240,共6页Earth Science-Journal of China University of Geosciences

基　　金：国防科工委"八五"期间科技攻关项目(No.49-5.1).

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.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.

关 键 词：低温热水 水文地球化学 同位素 铀矿化 水-岩作用 

分 类 号：P611[天文地球—矿床学]