The layer parameters thus obtained from the analysis were combined with information from borehole logs and pumping test data from existing boreholes to estimate aquifer hydraulic parameters using darzarrouk parameters. It is the aim of this paper to introduce the method and to establish its mathematical relationship to the socalled dar zarrouk parameters. By keying in 3, printouts of the correlation matrix, resolution matrix, and information density matrix are obtained. The aquifer parameters of transmissivity and hydraulic conductivity were calculated from the pump test data using aquifer test pro software for seven wells. The aim of the study is to use dar zarrouk parameters to determine the groundwater quality and potentials of the study area. Aquifer hydraulic parameters are properties that control the movement, storage and extraction of underground water. Pdf determination of dar zarrouk parameters for prediction of. Estimation of aquifer transmissivity from darzarrouk. Estimating aquifer transmissivity by the application of. Shakir department of geology, college of science,university of baghdad,bagdad,iraq. The dar zarrouk parameters form the basis of a suggested procedure for optimizing the optimal stages of groundwater exploration in similar arid and semiarid regions where there is a general.
Results groundwater flow the parameters for the determination of groundwater flow direction are presented in table1. The layer parameters thus obtained from the analysis were combined with information from borehole logs and pumping test data from existing boreholes to estimate aquifer hydraulic parameters using dar zarrouk parameters. Estimation of aquifer transmissivity using dar zarrouk. Geoelectric resistivity sounding for delineating salt water.
Thicknesses showed shallow water bearing formation. Hydrogeophysical study of aquifer characteristics in some. The combination of layer resistivity and thickness in the so. It was found that the hydraulic conductivity values range between 0. N, it is basically underlain by basement complex rocks represented by diorite and granites, and cretaceous sedimentary rocks represented by bima, yolde. It is also aim at computing the protective capacity rating of the over burden in the area of study. Four 4 vertical electrical sounding ves were conducted with maximum electrode spacing of 200 m. The exploitation of darzarrouk parameters to differentiate between. Zohdy new techniques in directcurrent resistivity exploration geological survey bulletin d dar zarrouk curves are used to define the limits of. The dar zarrouk parameters evaluated in this work include longitudinal conductance s, transverse resistance t. The aim of this paper is to establish an analytical relationship between the aquifer par ameters for porous media and the socalled darzarrouk parameters so that the former can best be estimated from the surface resistivity measurements. This work evaluated the dar zarrouk parameters of parts of federal university of petroleum resources, effurun, nigeria. Geoelectric sounding for the determination of aquifer. The ves data obtained was interpreted, and layer parameters such as true resistivities and thickness were determined.
Delineation of aquifer potential zones using hydraulic. Dar zarrouk parameter as a tool for evaluation of well. Niwas and singhal 1981 show that the dar zarrouk parameters for the horizontal, homogenous and isotropic layer could be obtained as follows. Use of dar zarrouk curves in the lnterjfetation of vertical electrical. The exploitation of darzarrouk parameters to differentiate between fresh and saline groundwater aquifers of sinjar plain area. Geoelectric resistivity sounding for delineating salt. Determination of dar zarrouk parameters for prediction of aquifer protective capacity. Four of the soundings were carried out near existing boreholes in which pumping test had been carried out. Using geoelectric soundings for estimation of hydraulic. In the area under study, the depth to water and the thickness of the brackish increase towards the south side as well as the depth to the brackish water.
A geoelectric layer is described by two fundamental parameters. Estimation of aquifer hydraulic characteristics from electrical sounding data. Udoinyang and igboekwe greener scholarly publications. This advanced technique uses the calculation of dar. Onuoha and mbazi 1988 used the concept of dar zarrouk parameters to estimate the transmissivity of ajali sandstone aquifers in southeastern nigeria. Significance of darzarrouk parameters in the exploration of quality affected coastal aquifer systems article pdf available in environmental geology 455. Using geoelectric soundings for estimation of hydraulic characteristics of aquifers in the coastal area of lagos, southwestern nigeria. Henriet direct application of darzarouk parameter in groundwater survey.
Case study of okigwe district, southeastern nigeria. The estimation and significance of darzarrouk parameters. Dar zarrouk marameters dar zarrouk parameters consist of the transverse resistance and longitudinal conductance. Use of dar zarrouk curves in the interpretation of vertical electrical sounding data by adel a. The study will provide a better understanding of the depth of the aquifer thickness and characteristics of aquifer from dar zarrouk parameters. Dar zarrouk parameters were computed and used alongside the pumping tests to estimate the aquifer hydrologic properties. The area covers about 246 square kilometers and lies in the southeastern part of nigeria. Estimation of aquifer characteristics in parts of oru lga of imo state nigeria using resistivity data. The geoelectric parameters were used to generate the dar zarrouk parameters. Resistity dc method applied to aquifer protection studies. Estimation of aquifer transmissivity using dar zarrouk parameters.
Thus, it can be inferred from the study that the geoelectrical sounding method can be successively used not only for exploration of groundwater in the study area but also for estimating the. Estimation of aquifer characteristics in parts of oru lga. Zohdy new techniques in directcurrent resistivity exploration geological survey bulletin d dar zarrouk curves are used to define the limits of equivalence for multilayer sections, to improve the fit between. The study area was generally delineated as having a poor protective capacity as a result of the low values of longitudinal conductance of the aquiferous layers, but high transmissivity and permeability which suggest high groundwater potential. Resistivity method applied to aquifer protection study in. It establishes the technical parameters within which all students must work. Pdf significance of darzarrouk parameters in the exploration of. The dar zarrouk parameters clarified that there are some parts that may contaminate pathways and other parts are not. The protective capacity of a clayey aquifer overburden is proportional to its longitudinal unit conductance s which, in terms of aquifer protection, gets a dimension of time. Aquifer vulnerability assessment in some towns of yenagoa, southsouth nigeria.
The regions with high transmissivities and hydraulic. Evaluation of aquifer potential, geoelectric and hydraulic. A case history from parts of enugu town nigeria, journal of water resource and protection, vol. Groundwater investigation and characterisation in marigat. Estimation of aquifer hydraulic characteristics from. The socalled auxiliary point method for the interpretation of geoelectrical resistivity soundings has. The darzarrouk parameters were used to obtain the hydraulic conductivity, k from aquifer conductivity. Ezeh 2011 applied the concept of dar zarrouk parameters. The darzarrouk parameters clarified that there are some parts that may contaminate pathways and other parts are not. Estimation of aquifer transmissivity from dar zarrouk parameters in porous media.
Abstract this research discusses the exploitation of dar zarrouk dz parameters. The auxiliary point method is an empirical graphical method by which a multilayer problem is progressively reduced to the simple twolayer case. Use of dar zarrouk curves in the lnterjfetation of vertical. U 2 rhema university, aba abia statenigeria, micheal okpara university of agriculture, umudike abia statenigeria. Darzarrouk geoelectrical parameters, geoelectricalhydrogeological parameters, saline fresh groundwater aquifers differentiation.
Aquifer transmissivity dar zarrouk parameters and groundwater. Using the dar zarrouk concept to infer the subsurface. Table 2 displays the summary of the darzarrouk parameters and the hydraulic. Z parameters, namely longitudinal unit conductance, transverse unit resistance, and longitudinal resistivity has been employed by using 50 vertical electrical sounding points to assess the groundwater and delineate the fresh.
The dar zarrouk parameters evaluated showed that the study area has good groundwater potentials with values of reflection coefficient ranging from 0. Pdf the predicti on of the protective capacity of agbani sandstone aquifer, within the enugu state university of science and technology. Dar zarrouck parameter, aquifer, hydraulic, conductivity, nigeria. Natural vulnerability estimate of groundwater resources in. Vertical electrical sounding, dar zarrouk parameters, nkporo formation, afikpo sandstone.
Geophysical investigation for groundwater potential and aquifer protective capacity around osun state. Okoro, estimation of aquifer transmissivity using dar zarrouk parameters derived from surface resistivity measurements. Significance of dar zarrouk parameters in the exploration of quality affected coastal aquifer systems article pdf available in environmental geology 455. The combination of thickness and resistivity into single variables, the dar zarrouk parameters maillet, 1947. Since dar zarrouk parameters are also bulk parameters, taking the relationship between hydraulic conductivity and resistivity a stage further leads to a relation between transmissivity values estimated from pumping tests and the dar zarrouk parameters from surface resistivity mea. Evaluation of dar zarrouk parameters of parts of federal. The aim of this paper is to establish an analytical relationship between the aquifer par ameters for porous media and the socalled dar zarrouk parameters so that the former can best be estimated from the surface resistivity measurements. The study will provide a better understanding of the depth of the aquifer thickness and characteristics of aquifer from. The estimation and significance of darzarrouk parameters in.
In the absence of pumping test, these darzarrouk parameters can be used to determined the hydraulic conductivity of aquifer in an area and groundwater potential evaluation. Guide to the preparation of theses and dissertations. Geoelectric evaluation of aquifer protective capacity and. Other geoelectric parameters can be derived from its resistivity and thickness zohdy et al1974. Researchers noted that groundwater is also susceptible to pollution. Delineating aquifer systems using dar zarouk parameters. This research is aimed at delineating the groundwater potential zones in gombe and environs using dar zarrouk parameters. The guide does not address issues of content such as grammar, punctuation or wording. Location and geology of the study area the study area lies between latitudes 06 090n and 06 180n of the equator and longitudes 07 054 e and 08 020e of the greenwich meridian fig. Aquifer vulnerability assessment in some towns of yenagoa. The direction of groundwater movement can be understood in the fact that groundwater level is typically highest to the discharge areas where. These parameters include, but are not limited to, margins, formatting and style, sequence of pages, tablefigure placement, and spacing. Evaluation of aquifer potential, geoelectric and hydraulic parameters in ezza north, southeastern nigeria, using geoelectric sounding.
The study area was generally delineated as having a poor protective capacity as a result of the low values of longitudinal conductance of the aquiferous layers, but high transmissivity and permeability which suggest high. Dar zarrouk parameters have since been used in the estimationstudy of the hydraulic properties of aquifers. Estimation of aquifer transmissivity from darzarrouk parameters in porous media. By keying in 2, manudz, the manual reduction subprogram using the dar zarrouk parameters, is called. Aquifer, dar zarrouk, parameters, abudu, hydraulic conductivity, transmissivity. In this study, darzarrouk dz parameters, namely the longitudinal conductance s, transverse resistance t and longitudinal resistivity r s are analyzed and. Aquifer transmissivity, dar zarrouk parameters and the direction of flow of suspended particulate matter in boreholes in mouau and the kwa ibo river umudikenigeria udoinyang, ifiok efiong 1 and igboekwe, m. The data obtained were analysed first by curve matching before computer iteration to obtain the model parameters in terms of resistivity, thickness and lithology of the various layers. In the absence of pumping test, these dar zarrouk parameters can be used to determined the hydraulic conductivity of aquifer in an area and groundwater potential evaluation. Determination of darzarrouk parameters for prediction of. Science and education publishing, publisher of open access journals in the scientific, technical and medical fields. The subsurface resistivity layer parameters of 47 vertical geoelectrical soundings are analyzed for a rectangle shaped area of 70 km2 from the gulf of aqaba coast. The interpreted geoelectric and the computed dar zarrouk parameters have been established as the major driver of groundwater discharge in an area for apr 29, 2016 vertical electrical sounding, dar zarrouk parameters, nkporo study is to use dar zarrouk parameters. Pdf prediction of hydraulic conductivity from dar zarrouk.
Delineating aquifer systems using dar zarouk parameters determined from surface geoelectric survey. Abstract this research discusses the exploitation of darzarrouk dz parameters. Groundwater condition based on geoelectrical technique and. The geoelectric parameters were used to generate the dar zarrouk parameters from which the aquifer protective capacity was subsequently evaluated. Geoelectric investigation of the groundwater potential. The exploitation of darzarrouk parameters to differentiate. Darzarrouck parameter, aquifer, hydraulic, conductivity, nigeria. Evaluation of dar zarrouk parameters of parts of federal university. The exploitation of dar zarrouk parameters to differentiate between fresh and saline groundwater aquifers of sinjar plain area. Abstract the combination of layer resistivity and thickness in the so.