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Geothermal Measurements in Northern Canada
Information on underground temperatures and temperature gradients is particularly important in northern Canada from a practical point of view because of the presence of permafrost and the problems created thereby. Permafrost thicknesses and temperatures are important in many phases of the petroleum industry, ranging from geophysical interpretations to the eventual design of a production well. In the mining industry it is important in slope stability of open pits, in explosive charge design, in underground ventilation design and drift and stope stability. Determination of the thermal properties of subsurface rocks penetrated enables calculation of the terrestrial heat flow which can be used to make permafrost thickness predictions and is important in an understanding of the geological processes which are acting to create the lithosphere of northern Canada.
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