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Science 7 December 1979:
Vol. 206. no. 4423, pp. 1179 - 1182
DOI: 10.1126/science.206.4423.1179
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Articles

Recent Crustal Uplift in Yellowstone National Park

J. R. PELTON 1 and R. B. SMITH 1

1 Department of Geology and Geophysics, University of Utah, Salt Lake City 84112

Comparison of precise leveling measurements made in 1923 with those made in 1975, 1976, and 1977 reveals that the 600,000-year-old Yellowstone caldera is being uplifted relative to its surroundings. Maximum relative uplift since 1923 is in excess of 700 millimeters—about 14 millimeters vertically per year. The most likely cause of this rapid and unusually large surface deformation is a recent influx of molten or partially molten materials to a location within the crust beneath Yellowstone National Park.

Submitted on July 16, 1979
Revised on September 10, 1979


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
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