The area covers about 246 square kilometers and lies in the southeastern part of nigeria. Geoelectric resistivity sounding for delineating salt. Estimation of aquifer characteristics in parts of oru lga of imo state nigeria using resistivity data. Dar zarrouk parameter as a tool for evaluation of well. Four of the soundings were carried out near existing boreholes in which pumping test had been carried out. 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. Evaluation of aquifer potential, geoelectric and hydraulic. Pdf determination of dar zarrouk parameters for prediction of. Researchers noted that groundwater is also susceptible to pollution.
Determination of dar zarrouk parameters for prediction of aquifer protective capacity. Henriet direct application of darzarouk parameter in. The guide does not address issues of content such as grammar, punctuation or wording. In this study, darzarrouk dz parameters, namely the longitudinal conductance s, transverse resistance t and longitudinal resistivity r s are analyzed and. Estimation of aquifer transmissivity from darzarrouk. Evaluation of dar zarrouk parameters of parts of federal university. Okoro, estimation of aquifer transmissivity using dar zarrouk parameters derived from surface resistivity measurements. 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. Resistivity method applied to aquifer protection study in. Dar zarrouck parameter, aquifer, hydraulic, conductivity, nigeria. Estimation of aquifer transmissivity using dar zarrouk parameters. Use of dar zarrouk curves in the interpretation of vertical electrical sounding data by adel a. Using the dar zarrouk concept to infer the subsurface. Estimation of aquifer hydraulic characteristics from electrical sounding data.
A geoelectric layer is described by two fundamental parameters. Aquifer hydraulic parameters are properties that control the movement, storage and extraction of underground water. Geoelectric investigation of the groundwater potential. Hydrogeophysical study of aquifer characteristics in some. Henriet direct application of darzarouk parameter in groundwater survey. Dar zarrouk marameters dar zarrouk parameters consist of the transverse resistance and longitudinal conductance.
Delineation of aquifer potential zones using hydraulic. Groundwater condition based on geoelectrical technique and. Determination of darzarrouk parameters for prediction of. It is the aim of this paper to introduce the method and to establish its mathematical relationship to the socalled dar zarrouk parameters. The study will provide a better understanding of the depth of the aquifer thickness and characteristics of aquifer from.
Using geoelectric soundings for estimation of hydraulic characteristics of aquifers in the coastal area of lagos, southwestern nigeria. It is also aim at computing the protective capacity rating of the over burden in the area of study. Science and education publishing, publisher of open access journals in the scientific, technical and medical fields. 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. Determination of aquifer parameters using geoelectrical. 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. The auxiliary point method is an empirical graphical method by which a multilayer problem is progressively reduced to the simple twolayer case. 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. Shakir department of geology, college of science,university of baghdad,bagdad,iraq. Evaluation of aquifer potential, geoelectric and hydraulic parameters in ezza north, southeastern nigeria, using geoelectric sounding. The subsurface resistivity layer parameters of 47 vertical geoelectrical soundings are analyzed for a rectangle shaped area of 70 km2 from the. 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. The exploitation of darzarrouk parameters to differentiate. Read full text articles or submit your research for publishing.
Using geoelectric soundings for estimation of hydraulic. Estimation of aquifer transmissivity from darzarrouk parameters in porous media. 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. Delineating aquifer systems using dar zarouk parameters. Abstract the combination of layer resistivity and thickness in the so. The estimation and significance of darzarrouk parameters in. Pdf the predicti on of the protective capacity of agbani sandstone aquifer, within the enugu state university of science and technology. This research is aimed at delineating the groundwater potential zones in gombe and environs using dar zarrouk parameters. N, it is basically underlain by basement complex rocks represented by diorite and granites, and cretaceous sedimentary rocks represented by bima, yolde. 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. By keying in 2, manudz, the manual reduction subprogram using the dar zarrouk parameters, is called. Groundwater investigation and characterisation in marigat. Guide to the preparation of theses and dissertations.
Geoelectric sounding for the determination of aquifer. Darzarrouck parameter, aquifer, hydraulic, conductivity, nigeria. Vertical electrical sounding, dar zarrouk parameters, nkporo formation, afikpo sandstone. The socalled auxiliary point method for the interpretation of geoelectrical resistivity soundings has. Aquifer, dar zarrouk, parameters, abudu, hydraulic conductivity, transmissivity.
Case study of okigwe district, southeastern nigeria. Delineating aquifer systems using dar zarouk parameters determined from surface geoelectric survey. Aquifer vulnerability assessment in some towns of yenagoa, southsouth nigeria. Evaluation of dar zarrouk parameters of parts of federal. Aquifer vulnerability assessment in some towns of yenagoa. Geophysical investigation for groundwater potential and aquifer protective capacity around osun state. 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. From the result, the dar zarrouk parameters longitudinal conductance and transverse resistance were calculated. 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. Use of dar zarrouk curves in the lnterjfetation of. Estimation of aquifer transmissivity from dar zarrouk parameters in porous media.
Thicknesses showed shallow water bearing formation. Geoelectric evaluation of aquifer protective capacity and. The dar zarrouk parameters evaluated in this work include longitudinal conductance s, transverse resistance t. It establishes the technical parameters within which all students must work. Resistity dc method applied to aquifer protection studies. The combination of layer resistivity and thickness in the so.
The geoelectric parameters were used to generate the dar zarrouk parameters. 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. 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. There are several works that has shown that the dar zarrouk parameter of transmissivity and conductivity and the geologic information of an area can be used to compute the distribution of water potential surfaces. The study will provide a better understanding of the depth of the aquifer thickness and characteristics of aquifer from dar zarrouk parameters. Estimation of aquifer transmissivity using dar zarrouk. Dar zarrouk parameters have since been used in the estimationstudy of the hydraulic properties of aquifers. The dar zarrouk parameters clarified that there are some parts that may contaminate pathways and other parts are not. The combination of thickness and resistivity into single variables, the dar zarrouk parameters maillet, 1947. Udoinyang and igboekwe greener scholarly publications. Geoelectric resistivity sounding for delineating salt water. Other geoelectric parameters can be derived from its resistivity and thickness zohdy et al1974. Pdf prediction of hydraulic conductivity from dar zarrouk.
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. Significance of dar zarrouk parameters in the exploration of quality affected coastal aquifer systems article pdf available in environmental geology 455. The aim of the study is to use dar zarrouk parameters to determine the groundwater quality and potentials of the study area. Dar zarrouk parameters were computed and used alongside the pumping tests to estimate the aquifer hydrologic properties. The exploitation of darzarrouk parameters to differentiate between fresh and saline groundwater aquifers of sinjar plain area. Aquifer transmissivity dar zarrouk parameters and groundwater. The estimation and significance of darzarrouk parameters in the.
Four 4 vertical electrical sounding ves were conducted with maximum electrode spacing of 200 m. Use of dar zarrouk curves in the lnterjfetation of vertical. Estimation of aquifer hydraulic characteristics from. Significance of darzarrouk parameters in the exploration of quality affected coastal aquifer systems article pdf available in environmental geology 455. Onuoha and mbazi 1988 used the concept of dar zarrouk parameters to estimate the transmissivity of ajali sandstone aquifers in southeastern nigeria. By keying in 3, printouts of the correlation matrix, resolution matrix, and information density matrix are obtained. The estimation and significance of darzarrouk parameters. The exploitation of darzarrouk parameters to differentiate between. The aquifer parameters of transmissivity and hydraulic conductivity were calculated from the pump test data using aquifer test pro software for seven wells.
Results groundwater flow the parameters for the determination of groundwater flow direction are presented in table1. A case history from parts of enugu town nigeria, journal of water resource and protection, vol. The direction of groundwater movement can be understood in the fact that groundwater level is typically highest to the discharge areas where. The exploitation of dar zarrouk parameters to differentiate between fresh and saline groundwater aquifers of sinjar plain area. Darzarrouk geoelectrical parameters, geoelectricalhydrogeological parameters, saline fresh groundwater aquifers differentiation. Abstract this research discusses the exploitation of dar zarrouk dz parameters. Abstract this research discusses the exploitation of darzarrouk dz parameters. 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 advanced technique uses the calculation of dar. The dar zarrouk parameters evaluated showed that the study area has good groundwater potentials with values of reflection coefficient ranging from 0. Natural vulnerability estimate of groundwater resources in. 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.
Pdf significance of darzarrouk parameters in the exploration of. 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 ves data obtained was interpreted, and layer parameters such as true resistivities and thickness were determined. 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. A case of agbani sandstone aquifer, enugu state, southeastern nigeria.
Estimating aquifer transmissivity by the application of. 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. It was found that the hydraulic conductivity values range between 0. 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. This work evaluated the dar zarrouk parameters of parts of federal university of petroleum resources, effurun, nigeria. The regions with high transmissivities and hydraulic. Sep 09, 2018 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. Use of dar zarrouk curves in the lnterjfetation of vertical electrical. The geoelectric parameters were used to generate the dar zarrouk parameters from which the aquifer protective capacity was subsequently evaluated.
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. Niwas and singhal 1981 show that the dar zarrouk parameters for the horizontal, homogenous and isotropic layer could be obtained as follows. U 2 rhema university, aba abia statenigeria, micheal okpara university of agriculture, umudike abia statenigeria. 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.
These parameters include, but are not limited to, margins, formatting and style, sequence of pages, tablefigure placement, and spacing. The darzarrouk parameters were used to obtain the hydraulic conductivity, k from aquifer conductivity. The aquifer parameters estimated from the geoelectrical method for 48 ves points using dar zarrouk parameter transverse unit resistance are in agreement with results obtained from pump test. 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.
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