Image: AshContours
Size of this preview: 490 × 599 pixels. Other resolutions: 196 × 240 pixels | 605 × 740 pixels.
Original image (605 × 740 pixels, file size: 170 KB, MIME type: image/png)
Description: Contour lines, cm scale, showing accumulation of ash from 3 episodes of Plinian pumice falls over 60 hours during the 1912 Novarupta eruption
Title: AshContours
Credit: The Novarupta-Katmai eruption of 1912—largest eruption of the twentieth century; centennial perspectives: U.S. Geological Survey Professional Paper 1791
Author: Hildreth, W., and Fierstein, J.
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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