NIGERIAN JOURNAL OF SCIENCE AND ENVIRONMENT
Journal of the Faculties of Science and Agriculture, Delta State University, Abraka, Nigeria

ISSN: 1119-9008
DOI: 10.5987/UJ-NJSE
Email: njse@universityjournals.org


DECIPHERING SUBSURFACE STRATIFICATION AND GROUNDWATER OCCURRENCE AT IBUSA IN DELTA NORTH OF NIGERIA USING RESISTIVITY SOUNDING METHOD

DOI: 10.5987/UJ-NJSE.16.007.2   |   Article Number: 40C7687   |   Vol.12 (2) - September 2013

Author:  Iserhien-Emekeme R.E

The vertical electrical resistivity interpretation of four sounding curves was done around Ibusa

town in Oshimili Local Government Area of Delta State whose geology falls within the southern

limits of the Anambra Basin. The results obtained from the computer modeling suggest that the

region is underlain by 6 to 7 geoelectric layers. The aquiferous unit was found at depth above

230m. The unit that contains the aquifer has resistivity ranging from 596 – 812  m with a thick-

ness varying between 34.4m to 118m. This study reveals the possibility of having a maximum drill

depth to water table of above 250m. The geoelectric section depicts very thick clay lignite in some

VES points and this is indicative of the linite lithologies of the Ogwashi-Asaba formation.

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Layer Resistivity

(m)

Thickness

(m)

Depth

(m)

1 649 1.28 1.28

2 414 2.88 4.16

3 3906 10.2 14.3

4 98.9 1.44 15.8

5 648 118 134

6 93.1 103 237

7 812

Iserhien-Emekeme

 49

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