山东国土资源2025，Vol.41Issue(7)：19-25,7.DOI:10.12128/j.issn.1672-6979.2025.07.003
临沂方城盆地白垩纪潜火山岩蓄水构造富水特征分析
Analysis on Water Rich Characteristics of Cretaceous Subvolcanic Rocks in Fangcheng Basin in Linyi City
摘要
Abstract
Through hydrogeological investigation,geological drilling,pumping tests,hydrochemical analy-sis and other methods,a comprehensive study has been conducted on the enrichment law and hydrochemi-cal characteristics of groundwater in Cretaceous volcanic rocks in Fangcheng basin in Linyi city.It is found that volcanic rocks in Fangcheng basin and the surrounding volcanic debris rocks constitute a vein type vol-canic rock water storage structure with water supply significance.The water storage structure of Qianhu-oshan rock has moderate water richness,with a unit water inflow of 18.7～310.7 m3/(d·m)for drilling.The total dissolved solids in groundwater are generally less than 1 g/L.The hydrochemical types are main-ly HCO3-Ca type,HCO3-Ca·Mg type,HCO3·Cl-Ca type,and HCO3·Cl-Ca·Mg type.The water quality is good,and it can be used as one of the target aquifers for drought resistant well drilling in areas with poor water in volcanic rocks.This discovery is of great significance for solving the problem of centralized water supply sources for rural areas in Yimeng Mountain volcanic rock poor water area.关键词
白垩纪/潜火山岩/蓄水构造/富水性/方城盆地/临沂市Key words
Cretaceous/subvolcanic rock/water-storing structures/rich water/Fangcheng basin/Linyi city分类
天文与地球科学引用本文复制引用
纪汶龙,徐建国,王玮,徐华,刘春华,刘治政,刘华峰,张卓,刘中业..临沂方城盆地白垩纪潜火山岩蓄水构造富水特征分析[J].山东国土资源,2025,41(7):19-25,7.基金项目
山东省1∶5万区域水文地质调查(临沂市幅、半程幅、方城幅、大朱保幅、薛庄幅)(鲁勘字[2013]46号) （临沂市幅、半程幅、方城幅、大朱保幅、薛庄幅）
