Abstract
WE have recently completed an experimental study of the behaviour of frozen soils with regard to mechanisms of frost heave in clays and soils and in permafrost areas1. During pressure–time studies of ice growth and fusion in frozen soils, we obtained the data shown in Fig. 1, which can be projected to glacier ice 8,000–10,000 ft thick. This curve shows the fusion behaviour of various confined ice and unconfined water systems as derived from our experimental time–pressure–temperature researches. Briefly, the data show that the melting point of the ice is a linear function of pressure, as may be expected from the modified Clapeyron-type derivation shown, wherein the ice is under pressure but the contact water is unconfined.
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