彬长矿区白垩系地下水水质变化特征

彬长矿区白垩系洛河组、环河组地下水水质在横向上和纵向上的都具有明显的变化规律。由于环河组岩层中含有石膏层,导致SO42-含量增高,水质较洛河组差;洛河组在补给区水质较排泄区好,虽然未来矿区工农业用水的方向可以是本区内洛河组承压裂隙—孔隙水,但由于本区洛河组地下水补给条件较差,地下水以静储量为主,故此水源地可供开采量有限。

Water Quality Change Features of Ground Water in Cretaceous System of Binchang Mining Area

Water quality of ground water in Luohe formation and Huanhe formation of Cretaceous system of Binchang mining area have clear change law along horizontal and vertical directions. In the rocks of Huanhe formation, there are gypsum bed, thereby lead content of SO42- increased, and the water quality much poor than Luohe formation. In the Luohe formation,the water quality of recharge area is better than in the drain area. Although the water supply direction of industry and agriculture in the future mining area may be confined fracture- pore water of Luohe formation in the area,but because of the recharge conditions of ground water of Luohe formation in the area much poor, and the ground water mainly static reserve, so that recoveralbe reserves in the water source district may be limited.