摘要
三山岛断裂带与焦家断裂带,是胶东西北部著名的金矿成矿带。近年来,在两条断裂带的深部相继发现了多个特大型金矿床,矿床水文地质条件研究程度较高,但对深部水文地质参数认识较单一。为了更加深入地了解断裂带深部水文地质参数特征,通过全面梳理断裂带深部水文地质参数,并进行厚度加权平均计算与对比分析,认为区域上渗透系数整体较小,断裂带上盘渗透系数较下盘小,三山岛断裂带渗透系数整体较焦家断裂带小。渗透系数随深度在浅部变化大,在深部变化小,并随深度加深,进一步减小趋于0。应用厚度加权平均计算的渗透系数可以提高涌水量预测的精度。
The Sanshan Island fault zone and the Jiaojia fault zone are the famous gold ore belts in the northwest of the Jiaodong area. In recent years,several super-large gold deposits have been discovered successively in the deep part of the two fault zones. The hydrogeological conditions of the deposits have been studied to a high degree,but the understanding of deep hydrogeological parameters is relatively simple. In order to understand more deeply the characteristics of the deep hydrogeological parameters of the fault zone,comprehensively combing the deep hydrogeological parameters of the fault zone,and calculating and comparing the thickness-weighted average,it is believed that the overall permeability coefficient is smaller in the region,and the permeability coefficient of the upper wall of the fault zone is lower. In Panxiao,the permeability coefficient of the Sanshan Island fault zone is smaller than that of the Jiaojia fault zone. The permeability coefficient varies greatly with depth in the shallow part,changes little in the deep part,and deepens with depth,and further decreases toward zero. The calculation of the permeability coefficient using the thickness-weighted average can improve the accuracy of the inflow prediction.
作者
刘诗鹏
LIU Shi - peng(Shandong gold geological and mineral exploration Co. , Ltd. Laizhou 261400, China)
出处
《地下水》
2018年第2期18-21,共4页
Ground water
关键词
水文地质参数
深部
对比分析
三山岛断裂带
焦家断裂带
hydrogeological parameters
deep
comparative analysis
Sanshan island fault zone
Jiaojia fault zone
