北祁连西段白尖铁矿床水文地质特征及矿坑涌水量预测  

Analysis of Hydrogeological Characteristics and Prediction of Pit Water Inflow of Baijian Iron Deposit in the Western Section of North Qilian Mountains

作　　者：董万平 孙继省 冉德甫 

机构地区：[1]甘肃省有色地质调查院 [2]甘肃省有色金属地质勘查局

出　　处：《现代矿业》2018年第1期79-84,共6页Modern Mining

基　　金：甘肃省地质勘查基金项目(编号:甘国土资发[2009]143号)

摘　　要：白尖铁矿床位于北祁连西段铁多金属成矿带内的镜铁山铁矿床外围,区域性构造线呈NW—SE向展布,矿区出露的岩性以长城系桦树沟组含铁浅变质岩为主。矿区气候为大陆性高寒半干旱气候,多风少雨,冬季寒冷。区内水系发育,地表水和地下水的补给、径流和排泄条件较简单。通过对矿床水文地质特征的分析,讨论了矿区地表水动态特征、地下水类型和特征以及矿床充水因素,并对矿区供水水源进行了初步评价。在此基础上,采用水文地质比拟法预测了矿坑涌水量,为矿区建设规划提供了可靠依据。Baijian Iron Deposit is located in the periphery of Jingtieshan Iron Deposit,which is distributed in the important polymetallic metallogenic belt in the western section of North Qilian Mountains.The regional tectonic trend is northwest to southeast. The lithology occurred in the mining area is mainly for iron-bearing shallow metamorphic rock of Huashugou Formaiton of Changcheng System. The climate of the mining area is continental high cold and semi-arid climate,which characterized by less rain,windiness and cold winter. Water system is well developed in the mining area,the recharge,runoffed and discharged conditions of surface water and groundwater are simple. Trough the analysis of hydrogeological characteristics of the mining area,the dynamic characteristics of surface water,types and characteristics of groundwater,and water filling factors of the deposit are studied in depth,besides that,the water supply source of the mining area is evaluated preliminary. Based on the above analysis results,the pit water inflow of the mining area is predicted by adopting hydro-geological comparison method,so as to provide some reliable reference for the construction design of the mining area.

关 键 词：北祁连西段 水文地质特征 水文地质评价 供水水源 水文地质比拟法 矿坑涌水量 

分 类 号：P641.463[天文地球—地质矿产勘探] TD742[天文地球—地质学]