AQUIFER CHARACTERISTICS AND GROUNDWATER POTENTIALS OF CRYSTALLINE BASEMENT COMPLEX OF (PARTS OF SHEETS 57 BICHI SE, 58 KUNYA SW, 80 KABO NE, AND 81 WUDIL NW) KANO, NORTH WESTERN NIGERIA
AQUIFER CHARACTERISTICS AND GROUNDWATER POTENTIALS OF CRYSTALLINE BASEMENT COMPLEX OF (PARTS OF SHEETS 57 BICHI SE, 58 KUNYA SW, 80 KABO NE, AND 81 WUDIL NW) KANO, NORTH WESTERN NIGERIA
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Date
2015-02
Authors
GARBA, TAHIR ABUBAKAR
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Abstract
The work was carried out on the basement complex of Kano metropolis to investigate into the aquifer characteristics and groundwater potentials of the area, in order to reveal the nature, quality and occurrence of groundwater. The geological mapping was carried out using topographical map on a scale of 1:50,000. A vertical electrical sounding (VES) was conducted using Ohmega resistivity meter with Schlumberger configuration. Pump test data of boreholes from the area were used for the determination of aquifer characteristics, which includes; transmissivity (T), hydraulic conductivity (k), and storage coefficient (S). Field study have shown that the area is underlain by schists, granites (porphyritic & biotite granites), and diorites. There are also minor intrusions of quartz veins, and aplite dykes. The trends of these structures show a predominating NW-SE direction. Vertical electrical soundings (VES) reveals that four (4) geoelecric layers, which include; topsoil/laterite/clay, weathered layer, fractured/fresh basement exists. The weathered layer serves as an aquiferous zone; where it is extensively thick. Bedrock could also serves as an aquifer where it is extensively fractured. Pumping test data obtained indicates that aquifer properties in the study area are of low potentials, which could be related to depth of the boreholes drilled and/or design. The analysis and interpretation of groundwater chemistry of the area suggest concentration of Pb and Cd above WHO‟s maximum permissible limits of 0.01mg/l and 0.03mg/l respectively, in about 93% of the samples analysed. That is a dangerous proportion, as they are known to be very dangerous to human health. Therefore Government should provide waste management disposal systems and proper monitoring of waste discharges by industries in the area.
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A THESIS SUBMITTED TO THE SCHOOL OF POST GRADUATE STUDIES AHMADU BELLO UNIVERSITY, ZARIA IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE AWARD OF MASTER OF SCIENCE DEGREE IN GEOLOGY DEPARTMENT OF GEOLOGY, FACULTY OF SCIENCE AHMADU BELLO UNIVERSITY, ZARIA.
Keywords
AQUIFER,, CHARACTERISTICS, GROUNDWATER, POTENTIALS, CRYSTALLINE,,, BASEMENT,, COMPLEX,, (PARTS OF SHEE,TS 57 BICHI SE, 58, KUNYA SW, 80 KA,BO NE,, 81 WUDIL NW) KA,NO, NORTH WESTER,N, NIGERIA.