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Characterization of a fractured aquifer through potential geophysics and physicochemical parameters of groundwater samples
Environmental Earth Sciences ( IF 2.8 ) Pub Date : 2020-07-05 , DOI: 10.1007/s12665-020-09096-y
Oscar Guevara-Mansilla , Héctor López-Loera , José Alfredo Ramos-Leal , René Ventura-Houle , Randall Eduardo Guevara-Betancourt

The heterogeneity of fractured and karstic aquifers is generally ignored, and not having an understanding of the hydrogeological evolution and functioning of these could potentially result in wrong water resource management practices. The geophysical methods are useful tools for hydrogeological investigations, helping in the detection of porosity and permeability zones in the subsoil that are important properties in the aquifer characterization. The combination of these with the measurement in situ of the physicochemical parameters of the groundwater can offer a detailed knowledge of the aquifer system. The study was conducted in the municipality of Tula, Tamaulipas, Mexico, where airborne geophysical data were analyzed. Then, 17 groundwater sampling points were established to measure physicochemical parameters (pH, Electric Conductivity and REDOX) and ionic concentration, to associate structures with zones of recharge, transport or storage of groundwater. It was found that the area with the greatest potential for groundwater recharge is located at the N and NW of the study area, with structures trending N–S and NE–SW, which favor the flow of groundwater to the convergence zone, located to the S of the study area. Also, near to the convergence zona, a fracture system with perpendicular direction to the groundwater flow acts as a barrier and divides the aquifer. Due to the chemistry characteristics of the groundwater, it was concluded that the main contribution of groundwater is through structures crossing evaporite rocks of the Guaxcama Formation.

中文翻译:

通过潜在的地球物理和地下水样品的理化参数表征裂隙含水层

裂缝性和岩溶性含水层的非均质性通常被忽略,对水文地质演化及其功能的了解可能会导致错误的水资源管理实践。地球物理方法是进行水文地质研究的有用工具,有助于检测地下土壤中的孔隙度和渗透率区域,这是表征含水层的重要属性。这些与地下水的物理化学参数的现场测量相结合可以提供有关含水层系统的详细知识。该研究是在墨西哥塔毛利帕斯州图拉市进行的,该市对机载地球物理数据进行了分析。然后,建立了17个地下水采样点以测量理化参数(pH,电导率和氧化还原度和离子浓度,以使结构与地下水的补给,运输或存储区域相关联。研究发现,地下水补给潜力最大的区域位于研究区域的西北和西北,其结构趋向于NS和NE-SW,有利于地下水流向收敛区域。 S学习区。另外,在收敛带附近,与地下水流垂直的方向的裂缝系统起着屏障的作用,将含水层分开。由于地下水的化学特性,可以得出结论,地下水的主要贡献是通过与Guaxcama组蒸发岩相交的结构。研究发现,地下水补给潜力最大的区域位于研究区域的西北和西北,其结构趋向于NS和NE-SW,有利于地下水流向收敛区域。 S学习区。另外,在收敛带附近,与地下水流垂直的方向的裂缝系统起着屏障的作用,将含水层分开。由于地下水的化学特性,可以得出结论,地下水的主要贡献是通过与Guaxcama组蒸发岩相交的结构。研究发现,地下水补给潜力最大的区域位于研究区域的西北和西北,其结构趋向于NS和NE-SW,有利于地下水流向收敛区域。 S学习区。另外,在收敛带附近,与地下水流垂直的方向的裂缝系统起着屏障的作用,将含水层分开。由于地下水的化学特性,可以得出结论,地下水的主要贡献是通过与Guaxcama组蒸发岩相交的结构。位于研究区域的S处。另外,在收敛带附近,与地下水流垂直的方向的裂缝系统起着屏障的作用,将含水层分开。由于地下水的化学特性,可以得出结论,地下水的主要贡献是通过与Guaxcama组蒸发岩相交的结构。位于研究区域的S处。另外,在收敛带附近,与地下水流垂直的方向的裂缝系统起着屏障的作用,将含水层分开。由于地下水的化学特性,可以得出结论,地下水的主要贡献是通过与Guaxcama组蒸发岩相交的结构。
更新日期:2020-07-05
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