Study of  the Aquifer and  Hydraulic Properties calculation along geoelectrical section in Telool Al-Kham  Sharqy Area, South of Mosul City

Hussein Al-Salim, Taha

	Study of the Aquifer and Hydraulic Properties calculation along geoelectrical section in Telool Al-Kham Sharqy Area, South of Mosul City
Tikrit Journal of Pure Science
Article 1, Volume 16, Issue 1, 2011, Pages 225-238
Author
Taha Hussein Al-Salim
Abstract
The Geoelectrical survey was carried out in the study area through (5) vertical electrical sounding points along (Á-A) Geoelectrical section. The graphical (auxiliary point) and analytical computerized by the (IPI.Win2.0 software) methods were used to interpret the sounding points quantitatively. The survey showed presence of high apparent resistivities within the geoelectrical zones (1&2) ranged between (50-200 Ω.m) and (17-38 Ω.m) for the recent deposits and silty calystone rocks respectively and low apparent resistivities within the zones (3&4) ranged between (6-14 Ω.m) for the clayey sandstone and(2.7-6 Ω.m) for the sandstone rocks. The possibility of water content presence is pointed in the both (3&4) geoelectrical zones within depth ranging between (13.5-115m.). The hydraulic properties of the aquifer were calculated using the pumping test data of the drilling borehole and analyzed using (Hantush) and (Walton) methods and (Thies) recovary method, were the (water transmissivity) (T) values ranging between (2.51 − 3.46 m²/day)and the (hydraulic conductivity) (K) between (0.0353 − 0.0437 m/day). The geoelectrical survey results showed a coincidence with the both borehole stratigraphic sequence and the hydro chemical analysis of the groundwater sample, in terms of the electrical conductivity (Ec = 5200µmhos) and the total dissolved salts (TDS = 3800ppm) which reflected presence of low apparent resistivities (2.7 Ω.m) because of the saline groundwater content.

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