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This academic thesis outlines the geological and geophysical structure of the Voltaian Basin. Finding good locations to drill boreholes has been challenging in this geologic province. The report describes the hydrologic conditions of the region using data from 332 boreholes, geophysical surveys, aerial photographs, and satellite imagery. The data were also used from the Gushiegu-Karaga, Savelugu-Nanton and West Mamprusi districts to help understand fracturing patterns. Fracturing patterns can give clues to the likelihood of groundwater occurrence. The author found that the majority of fractures in the region trend turn NW-SE and NE-SW directions. The fractures in the NE-SW direction are more likely to contain groundwater. Other conclusions of the research are that soils are generally more clayey in the valleys than the uplands. The thick soil areas have low well yield and success rates. The lowland areas act as groundwater recharge areas and upland areas contain the highest yielding wells. Well yield is normally higher in more fractures areas. |
