Title Work Title No: 18734 Medium: Moving Image Date: 1965 (Release) Original Summary: "Examines many features of today's landscapes which cannot be explained by processes at work around them, and explains that observation of the work of modern glaciers establishes that these anomalies could only have been caused by a massive sheet of moving ice. Proposes the hypothesis that glacial ice moved south at least four times in geologic history, and that its shape and size correspond approximately with the distribution of glacial features." - Summary from Worldcat. Countries of Origin: U.S.A. Genres: Educational
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