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.

已在沙特阿拉伯Al Madinah Al Munawwarah东北的Harrat Khaybar火山场中进行了二维（2D）电阻率层析成像（ERT）调查，以评估地下水资源的存在。为了这个目的，在590m至890m之间不同长度的北，南，东西向的六个位置上生成了11个ERT剖面。使用带有偶极子-偶极子阵列和5 m电极间距的Syscal Pro多节点电阻率成像系统收集ERT数据。然后，这些数据已使用RES2DINV软件处理以获得2D地电横截面。解释后的2D地电断面表明，被熔岩层占据的Harrat Khaybar位于砾石和粘土的冲积层之下。这些沉积物位于前寒武纪晶体岩石构造上，该构造具有向该地区提供地下水的潜力。在次玄武质冲积沉积物和玄武质流中也发现了有希望的含水层。此外，该地区报告的地下水位平均深度为47 m，厚度在6至200 m之间。这些结果与先前在Harrat Khaybar进行的水文地质研究相吻合。这些结果对哈拉特·哈伊巴尔（Harat Khaybar）的居民而言非常重要，使他们能够从该地区的地下水资源中受益，用于家庭和农业用途。据报道，该地区的地下水位平均深度为47 m，厚度在6至200 m之间。这些结果与先前在Harrat Khaybar进行的水文地质研究相吻合。这些结果对哈拉特·哈伊巴尔（Harat Khaybar）的居民而言非常重要，使他们能够从该地区的地下水资源中受益，用于家庭和农业用途。据报道，该地区的地下水位平均深度为47 m，厚度在6至200 m之间。这些结果与先前在Harrat Khaybar进行的水文地质研究相吻合。这些结果对哈拉特·哈伊巴尔（Harat Khaybar）的居民而言非常重要，使他们能够从该地区的地下水资源中受益，用于家庭和农业用途。