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首页> 外文期刊>Journal of King Saud University >Groundwater resources exploration of Harrat Khaybar area, northwest Saudi Arabia, using electrical resistivity tomography
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Groundwater resources exploration of Harrat Khaybar area, northwest Saudi Arabia, using electrical resistivity tomography

机译：利用电阻率断层扫描，西北沙特阿拉伯哈拉特·克梁地区的地下水资源探索

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Two-dimensional (2D) electrical resistivity tomography (ERT) survey has been conducted in the Harrat Khaybar volcanic field, northeast of Al Madinah Al Munawwarah, Saudi Arabia, to assess the presence of groundwater resources. For this purpose, eleven ERT profiles were generated at six sites oriented north–south and east–west at various lengths between 590?m and 890?m. The ERT data were collected using the Syscal Pro multinode resistivity imaging system with a dipole–dipole array and 5?m of electrode separation. Then, these data have been processed using RES2DINV software to get 2D geoelectric cross-sections. The interpreted 2D geoelectric cross-sections clarified that the Harrat Khaybar occupied by sheets of lava flows underlain by alluvial deposits of gravelly sand and clay. These deposits rest on a Precambrian crystalline rock configuration that has the potential to provide groundwater to the region. Promising water-bearing formations were detected within sub-basaltic alluvial sediments and basaltic flows as well. Moreover, the reported water table in the area has 47?m depth in average with thickness varies between 6 and 200?m. These results correlate well with those of previous hydrogeological studies conducted in Harrat Khaybar. These results are very important for the residents in Harat Khaybar, where enables them to benefit from the groundwater resources in the area for domestic and agricultural purposes.
机译：二维（2D）电阻率断层扫描（ERT）调查已经在沙特阿拉伯麦田·阿拉伯瓦尔（Al Madinah Al Munawwarah）的东北部门进行了调查，以评估地下水资源的存在。为此目的，在南北和东西方的六个站点以590×m和890的各个长度在南北和东西方的六个地点产生了11个位点。使用具有偶极偶极子阵列的SYSCAL Pro MultiDode电阻率成像系统和电极分离的5Ωm收集ERET数据。然后，已经使用Res2DinV软件处理了这些数据以获得2D地电横截面。解释的2D地质电横截面澄清说，通过砾石沙子和粘土的冲积沉积，熔岩覆盖的哈拉特khaybar占据了熔岩垫层。这些沉积在前亚美晶体岩石结构上休息，该岩石构造具有将地下水提供给该区域的潜力。在亚玄武岩冲积沉积物和玄武岩流动中检测到有前途的含水结构。此外，该地区的报告的水位表的平均水平平均为47Ωm，厚度在6到200°之间变化。这些结果与在哈拉特khaybar中进行的先前水文学研究的结果相相关。这些结果对于Harat Khaybar中的居民非常重要，在那里使他们能够受益于国内和农业目的地区的地下水资源。

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