الملخص

Sixteen Electrical Resistivity Tomography (ERT / IP) traverses were conducted and correlated with pumping ‎test data to estimate aquifer parameters in NW of Sulaimani. The length of traverses ranged from 310 to 400 m ‎and the space between electrodes was 10 m. The first layer is characterized by a low-resistivity value which ‎might be interpreted to silty and sandy clays or associated with the water-saturated bed range of the depth 0-‎‎20m.. While the second layer has higher ranges between 80 to 120 ohm.m with a depth of less than 20 m. and ‎represented the variation of grain size sediment sand, silt, and gravel boulder, it is partially saturated with ‎water. Several high-resistivity value features appear in the central part of most of the sections, at a depth ‎below 20m. The third layer is considered a moderate-resistivity value which reflects a bed of silty marl bed of ‎middle Tanjero Fn., this layer acts as an impermeable layer.‎Many relationships of hydraulic Dar Zarrouk aquifer parameters were extracted showing little variations of ‎hydraulic parameters with the aquifer parameters due to the restriction of the area of study little variation in ‎lithology, and the low of the well's production. The presence of the clay content is clearly visible in the ‎porosity relation with aquifer resistivity of the middle Tanjero Fn. Moreover, the measurements of IP have ‎been extremely successful in distinguishing between clay (with high chargeability and low resistivity) and ‎water (for low chargeability and low resistivity).‎