Of the various kinds of prospecting work , the hydrogeologic work should be mainly carried out in following aspects : division of hydrogeological units , the determination of artesian water - bearing system and the identification of prospecting target horizon ; the analysis on hydrodynamic regime , the analysis on hydrogeochemical environments , the paleo - hydrogeologic analysis and the delineation of redox front and favourable area for uranium ore - formation 其中水文地质工作着重从以下几个方面来进行：水文地质单元划分；承压含水系统和目的层的确定；水动力条件分析；水文地球化学环境分析；古水文地质分析；氧化还原带和成矿有利地段的圈定。
The study area is located in the northern part of the songnen plain in hei longjiang province . the text first introduces the geographic meteorologic , geologic and hydrogeologic conditions to select the suitable model in the calculation part . in the area , the natural recharge is the leakage from the upper aquifer , and the main discharge is the artificial exploitation 本文在对松嫩平原北部的拜泉县拜泉镇的自然地理、地质条件及水文地质条件充分分析的基础上,建立了研究区水文地质概念模型,进而建立了研究区地下水流的数学模型。
Jilin geological prospecting institute has the qualification certificates such as solid minerals prospecting class a , engineering survey specialized class a , hydrogeologic class a , ground base and foundation class ii , and geological surveying and mapping class c etc , and its laboratory passed the national metrology authentication 中化地质矿山总局吉林地质勘查院拥有固体矿产勘查甲级、工程勘察专业类甲级、水文地质甲级、地基与基础二级、地质测绘丙级等资质，国家计量认证合格实验室。
The crackings on buildings in research areas are the result of multi - factors comprehensive action , buildings open fissure relation to the geological environment condition of the research area , such as regional stability , hydrogeologic condition , engineering geological condition , structure of building , exploitation shaking of gold ore , etc 该研究区域房屋开裂是多因素综合作用的结果，房屋开裂与该区城地质环境条件的变化密切相关，主要影响因素有：区域稳定性、水文地质条件、工程地质条件、建筑物结构形式、金矿开采振动等。
