司家营铁矿矿井水水岩作用分析  

Analysis of mine water rock interaction in Sijiaying Iron Mine

作　　者：田硕 康振兴 TIAN Shuo;KANG Zhen-xing(School of Mining Engineering,North China University of Technology,Hebei 063000,China;ShougangLuannanMacheng Mining Co.,Ltd.,Hebei 063000,China)

机构地区：[1]华北理工大学矿业工程学院,河北唐山063210 [2]首钢滦南马城矿业有限责任公司,河北唐山063210

出　　处：《地下水》2022年第2期10-11,85,共3页Ground water

基　　金：河北省自然科学基金:“沉积变质型铁矿床水水文地球化学特征及水源判别模式研究”(D2017209229)。

摘　　要：为明确司家营铁矿在开采条件下第四系水补给,水-岩作用的演化方式。通过对围岩矿相学分析,明确主要矿物为磁铁矿、赤铁矿、黄铁矿、石英、斜长石、黑云母、角闪石和蚀变的黏土矿物。通过水岩浸泡实验,发现起主导的水岩作用为脱碳酸作用、氧化作用和硅酸盐岩矿物的水解作用。根据水化学模拟定量分析了每种矿物的转移量。为今后准确把握矿区地下水的演化,合理的开采利用地下水提供了理论依据。In order to clarify the evolution mode of Quaternary water recharge and water rock interaction under mining conditions of Sijiaying Iron Mine.Through the mineralogical analysis of surrounding rock,it is clear that the main minerals are magnetite,hematite,pyrite,quartz,plagioclase,biotite,amphibole and altered clay minerals.Through the water rock immersion experiment,it is found that the dominant water rock processes are decarbonization,oxidation and hydrolysis of silicate rock minerals.The transfer amount of each mineral is analyzed quantitatively according to hydrochemical simulation.It provides a theoretical basis for accurately grasping the evolution of groundwater in the mining area and reasonably exploiting and utilizing groundwater in the future.

关 键 词：沉积变质铁矿 水岩作用 水化学特征 水-岩实验 

分 类 号：P641.463[天文地球—地质矿产勘探]