CSAMT在贵州省大林硫铁矿山水文地质勘查中的综合应用  

Comprehensive Application of CSAMT in Hydrogeological Exploration of Dalin Iron and Sulfur Mine in Guizhou Province

作　　者：牛浩 周绍辉 杜贤军 NIU Hao;ZHOU Shaohui;DU Xianjun(The 5th Prospecting Team,Shandong Bureau of Coal Geology,Jinan 250100,China)

机构地区：[1]山东省煤田地质局第五勘探队,山东济南250100

出　　处：《四川有色金属》2024年第3期9-12,共4页Sichuan Nonferrous Metals

摘　　要：二叠系上统吴家坪组是矿区硫铁矿层的主要赋矿层位,同时也是地下水的储水地层,为了使硫铁矿生产安全得到保证,借助CSAMT物探手段对矿区的地下水进行勘查。通过勘查矿区赋矿层位茅口组顶界面岩层富水区分为东、中、西三个区块,其中东区岩溶裂隙较发育,岩石相对破碎,视电阻率明显较周围低,为富水区,面积最大。综合评价矿区水文地质属于由裂隙形成的岩溶裂隙发育,富水性相对较强,地下水受上部含水层垂向补给,并通过裂隙向茅口灰岩深部径流排泄到湘江。The Upper Permian Wujiaping Formation is the main ore-bearing stratum of the pyrite layer in the mining area,and it is also the groundwater storage stratum.In order to ensure the safety of the pyrite production,the groundwater of the mining area is explored by means of CSAMT geophysical exploration.The water-rich area at the top interface of Maokou Formation can be divided into three blocks in the east,middle and west,among which the eastern region is the largest water-rich area with more developed karst fractures,relatively broken rocks and significantly lower apparent resistivity.Comprehensive evaluation of the hydrogeology of the mining area belongs to the development of karst fractures formed by fissures,relatively strong water-rich,groundwater by the upper aquifer vertical recharge,and through the fissures deep runoff to the Xiangjiang River.

关 键 词：CSAMT法 水文地质 大林硫铁矿 贵州省 

分 类 号：P618[天文地球—矿床学] P631[天文地球—地质学] P641.7