岩浆岩地区富水性分级与蓄水构造研究

Study on Water Abundance Classification and Groundwater Storage Structure in Magmatic Area

摘要:

在以往水文地质编图中，岩浆岩地区地下水富水性等级划分较为笼统，不利于找水定井工作。该文利用已开展的1∶5万水文地质调查工作，分析了颜庄幅、赵格庄幅相关基础数据资料，总结了地下水的富集规律，考虑地形地貌、岩性、构造等影响因素，以小流域单元为思路进行富水性划分，将岩浆岩区富水性等级划分为＜10m3/d，10～50m3/d，50～300m3/d，＞300m3/d 4个等级。分析了断裂型、岩脉型、不同期次岩体接触带型和复合型4种主要蓄水构造富水机理，为下一步水文地质编图及找水定井工作提供一定参考依据。

Abstract:

In the former hydrogeological mapping work, water rich classification of groundwater in the magmatic areas is more general. It is not conducive to water exploration and well location. In this paper, based on hydrogeology survey with the scale of 1∶50000, basic data of Yanzhuang and Zhaogezhuang have been analyzed, and enrichment regulation of groundwater has been summarized. The topography, lithology and geologic structures are taken as influence factors, the water abundance are divided into four classes by using small watersheds, they are less than 10m3/d, 10～50m3/d, 50～300m3/d and more than 300m3/d. In addition, groundwater enrichment mechanisms of main groundwater storage structures, such as fracture types, dyke types and contact zone types of different stages of rock mass have been analyzed. It will provide some references for further hydrogeological mapping and well logging work.