Groundwater dynamics in Ennuhud Basin, Kordofan Region, Sudan

Groundwater dynamics in Ennuhud Basin, Kordofan Region, Sudan

Asim A. Elmansour Elnazir G. Elseed 

Department of Geology, Faculty of Science, University of Kordofan, Elobeid 51111, Sudan

Secretary for Academic Affairs, Colledge of El Imam El Hadi, Umdurman 11112, Sudan

Corresponding Author Email: 
umdaballo63@gmail.com
Page: 
94-100
|
DOI: 
10.18280/eesrj.050403
Received: 
19 October 2018
| |
Accepted: 
3 December 2018
| | Citation

OPEN ACCESS

Abstract: 

The study aims to deduce the physical and hydraulic characteristics of the aquiferous horizons, the dynamism and recharge potentialities of groundwater in En Nuhud basin. Geological, hydrogeological and pumping test observations were used to achieve the mentioned objectives. A complex flow direction imply a regional trend from north to the south with hydraulic gradient about (1.4*10-4), but varied local flow directions and hydraulic gradients are also observed. Groundwater fluxes show that the water in the basin circulates with some hydrogeological bodies within the Basement in the western part. Confined aquifers are characterized by weak confining pressure; very small rising of water level above the saturation limits in many wells is recorded.  The values of hydraulic conductivity assign that the dominant size in the aquifer material is the coarse sand, followed by fine sand size, then medium sand and lastly the gravel size. Transmissivity obtained from the tested wells ranges from v. high to medium. The sources of recharge to the aquifer system are from the boundary of the basin, the seepage below the surface water courses and recharge potentials through weak zones along fractures dissecting the area. Based on many observations on the water levels in boreholes presently safe abstraction from the basin is assumed. High regulated work and precisely performed process in the future is required to answer the question of the water balance in the area.

Keywords: 

Ennuhud basin, groundwater fluxes, hydraulic gradient, hydraulic parameters, rechadge

1. Introduction
2. Scope and Justifications of the Study
3. Methodology
4. Geology
5. Results
6. Discussion
7. Conclusion
Acknowledgment
  References

[1] Bouwer H. (1978). Groundwater Hydrology. Mc-Graw Hill, New York, NY, pp. 480.

[2] Elmansour AA. (2016). Assessment of the Ground-water of En Nuhud Basin, Sudan, PhD Thesis, University of West Kordofan, Sudan, pp. 47-115.

[3] Geological Map of Sudan (1981). Prepared by G.M.R.D. Khartoum- Sudan, the Assistance of R.S.C. Geddah- Kingdom of Saudi Arabia and Collaboration of the B.R.G.M. Orleans France. 

[4] Ginaya MA. (2001). Hydrogeological investigation of en nuhud basin, west kordofan state, Sudan. MSc Thesis, Department of Geology and Mining, College of Natural Resources and Environmental Studies, Juba University, Sudan, pp. 70-74.

[5] Ginaya MA. (2011). Updating of groundwater conditions of ennahud basin, North Kordofan, Sudan. PhD Thesis, Institute for Energy & Earth Sciences, Ministry of Sciences & Technology, Sudan, pp. 93-102.

[6] Karkanis BG. (1966). Hydrochemical facies of grounwater in the western provinces of Sudan. MSc. Thesis, Graduate College, University of Arisona. https://hdl.handle.net/10150/191466

[7] Rodis HG, Hassan A, Wahadan L. (1964). Groundwater geology of Kordofan province, bulletin No. 14, Ministry of Mineral Resources, Geological Survey Department, Khartoum, Sudan. https://doi.org/10.3133/wsp1757J

[8] Strojexport (1971-1972). Parametrical Measurements at Boreholes, Appendix 1, pp. 7-8.

[9] Strojexport (1971-1972). Log description with Geophysical Parameters, Appendix 4, pp. 30-100.

[10] Strojexport (1971-1972). Catalog of Gravity Values, Appendix 6, pp. 1-47.

[11] Strojexport (1972). Groundwater Research, SW part of Kordofan, Second Stage, Final Report, Praque, pp. 7-12.

[12] Strojexport (1973). Preliminary interpretation of the first part of the third stage geophysical investigation in the western and central part of Kordofan Province in the Sudan. The Foreign Trade Corporation Strojexport, PRAHA 1, Czechslovakia, pp. 23-31.

[13] Strojexport (1975). Geophysical Investigation of Hydrogeological Structures, Western Part of Kordofan Province, pp. 11-15.

[14] Strojexport (1975). Parametrical Measurements at Boreholes, Appendix 1, pp. 1-14.

[15] Strojexport (1975). Geoelectric Resistivity Sections with Gravity and Magnetic Curves, Appendix 2, pp. 2-39.

[16] Strojexport (1975). Log Description of Boreholes, Appendix 5, pp. 4-10.

[17] Strojexport (1975). Parametrical Analysis, Appendix 7, pp. 6-7.

[18] Strojexport (1976). Interpretative Gravity Profiles and Geoelectric Resistivity Sections Including Gravity and Magnetic Graphs, Appendix 4, pp. 6-7.

[19] Strojexport (1976). Geophysical investigations of groundwater structures, western part of Kordofan province an eastern part of Darfur Province, fourth stage. Strojexport Foreign Trade Corporation for Export and Import, Praque, Czechoslovakia, pp. 11-29.

[20] Struckmeyer WF, Margat J. (1995). Hydro-geological maps, a guide and a standard legend. International Association of Hydrogeologists, Hannover, Heise, pp. 177.