Resistivity Properties of Limestone Rocks in Parts of Iraqi Kurdistan Region-NE Iraq

Bakhtiar K. Aziz1, & Ezzaden N. Baban2

College of Science, University of Sulaimani, 2 Teacher College, University of Sulaimani

To evaluate limestone rocks from the hydrogeological point of view and indicating optimum
resistivities for dry and wet conditions an electrical resistivity ,study was performed in 34 locations
surrounding Sulaimani, Kirkuk and Arbil cities. About 181 VES points were conducted using
Shlumberger configuration. The authors selected six geological formations composed of limestone rock
ibr this purpose.The field data u,as interpreted manually Using Ebert method and by the aid of computer
using IPI2rvin anci Resixplus software. The optimum ranges of resistivity magnitudes have been
determined for these geological formations in both wet condition (Forming aquifers) and dry condition
(forming aquicludes). Among the studied formations Pila Spi. Sinjar and Aqra are appearing to be most
suitable for making aquifers, While Kometan. Balambo and Qamchuqa Formations are frequently

Keywords : Resistivity prospecting.Groundwater,carbonate rocks,


l- Lashkaripour, G"R.. An investigation of groundwater condition by geoelectrical resistivity method: A case stud;, in Korin aquifer, SE Iran,Journal of Spatial Hydrology, 2003: i(3) 1 I -5.
2- Young, M.E., De Bruijin, R.G., and Salim, i.A., Exploration of an alluvial aquifer in oman by' time-domain electromagnetic sounding, Hydrogeoksgt .Journal,6, 1998:3 83-393.
3- Gnanasunder, D., and Elango, L., Groundwater quality assessment of a costal aquifer using geoelectrical techniques, journal of environmental hydrogeologlt, 1999,7(2) l-8.
4- EI-Waheidi. M.M., Merlanti. F., and Pavan, M, Geoelectrical resistivity, survey of the central part of Azraq basin, Journal o! applied geophysic,r 1992t1.29, 125-133.
5- Choudhury, K., Saha, D.K.. and Chakraborty, P.,: Geophysical study for saline water intrusion in a costal aliuvial, Journcl cf applied geophysics 2001. 42, 189-200.
6- Yadav, G.S., and abolfazli, H., Geoelectronic soundings and their relationship to hydraulic parameters in semiarid regions of Jalore, NW india, Journal of applied geophysics 1998:. 39. 35-5 l.
7- Troisi, S., Fallicos, C., Straface, S., and Migliari, E., Application of kriging with external drift to estimate hydrulic conductivity fiom electrical resistivity data in unconsolidated sediment near montana Uffugo, Italy, flydrogectlopy Journal,
2000..8, 856-367.
8- Sumanovac, F,, and Weisser, M.,2001: Evaluation of resistivity and seismic methods for hydrogeological mapping in karst terrains, Journal of applied geophysics 2001.47,13-28.
9- Kaya, G.K.u Investigatiein of groundrvater contamination using eieotric and electromagnetic methorls at an cpen waste-disposal site: a case study from Isparta, Turkey, E nv i r o nne nt al G e o I o g,,, 20S t : . 4A,7 25 -7 3 1 .
10- Matias, M.J., Square array anisotropy measurements and resistivity sounding interpretatio n, J o urnttl af app I i e ti ge o ph1,s ic s 2002 : I (49), I 8 5 - I 94.
1l- Dahlin, T., The deveiopment of DC resistivity imaging techniques, Computers geoseinces, 2001 :, 27 " 1A19-1029.
12- ABEM, Instructioti manual, 1998: Terrarneter SAS-4000, Nitro Consult Company, Bormma, Sweden, P84.
l3- Buday, T., 1980: the regional geo1og1, of Iraq. Vol-1, (Stratigraphy and
Palegeography) GEOSLIRV, Baghdad. Iraq, 445P.