Hydrogeological studies in Ponoka area Alberta, Canada
Date
1961-05-01
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Degree Level
Masters
Abstract
Two cores were drilled in the Basal Paskapoo aquifer at Ponoka
to study the relation of geology to hydrology in the formation. Permeability,
porosity and grain size analyses of the cores were studied
in the laboratory, and it was found that the horizontal permeability in
No. 2 core is much greater than in No. 1. This was due in part to better
sorting as shown by the grain size analysis. These two cores are only
180 feet apart which points out that the formation is not uniform in
character.
The results were confirmed by pump tests which showed that the
transmissibility in No. 2 core is much higher than in No. 1. This confirms
the dependence of the hydrology on the geology of the formation. The
porosity was the same for the two cores. The leakage coefficient in
the aquifer was also calculated from pump tests using a method developed
by Hantush.
Study of the chemical analysis of ground water in the area
showed that there are three types of water. This separation was based
mainly on the ratio of hardness to sulphate and other constituents.
The field location of these three types show relation to recharge and
discharge areas.
Special studies were carried out including the construction of
a vertical variability map of the bedrock sandstone in the area, and
points of high and low ground water potential were outlined. It is
shown that the centre of gravity map can be used to outline areas of
high and low transmissibilities.
Thornthwaite's formula was used to study the climatology of
the area and tentative conclusions on the amount of evapotranspiration,
runoff, and recharge were reached but are subject to considerable
doubt.
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Degree
Master of Science (M.Sc.)
Department
Geological Sciences
Program
Geological Sciences