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Critical Study Of Ground Water Potential Of Part Of Obubra Local Government Area Cross River State Nigeria

Journal: International Journal of Scientific & Technology Research (Vol.4, No. 10)

Publication Date:

Authors : ; ; ; ; ; ; ; ; ; ; ;

Page : 122-126

Keywords : Keywords Ground Water Potential; Vertical Electrical Sounding; Abem Terrameter Model SAS 300;

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ABSTRACT The vertical electrical sounding VES technique employing the Schlumberger electrode array was used to survey some villages in Obubra Local Government Area of Cross River State with a view to determine the groundwater potntial of the area. The study area is located between longitude 80 12 and 80 16 E and latitudes 50 45 and 60 15 N. a total of seventeen 17 electrical soundings were undertaken using the ABEM TERRAMETER model SAS 300 maximum current electrode spread of 500m was attained. The data were interpreted using resist computer software programme to obtain the final model for each VES location. These models were combined to produce a profile showing the geoelectric sections of the subsurface. Correlation of the inferred geoelectrical models showed that the first layer is composed of the sand mixed with clay and its resistivity is between 157 and 497Wm. The second layer inferred as clay has a resistivity range between 17 and 67Wm. the third layer suspected to be sandstone had resistivity range of 541-7603Wm. The fourth layer suspected to be shale had a resistivity range of 97-574Wm while the last layer is sandstone with resistivity range of 309-4412Wm. The sandstone layers 3rd and 5th are considered to be the potential aquifer units in the area.

Last modified: 2015-11-13 18:33:27