Bread-crusted pumice blocks, Chaos Crags, Lassen Volcanic National Park, Shasta County, California.
Summary
Album Caption: Lassen Volcanic National Park, California. Ground surface west of the Chaos Crags is made up of a pavement of bread-crusted pumice blocks deposited by hot pyroclastic flows. Published in Journal of Research of the U.S. Geological Survey, v.2, no.1., page 53, figure 3. January-February. 1974
Summary
Album Caption: Lassen Volcanic National Park, California.
Ground surface west of the Chaos Crags is made up of a pavement of bread-crusted pumice blocks deposited by hot pyroclastic flows.
Published in Journal of Research of the U.S. Geological Survey, v.2, no.1., page 53, figure 3. January-February. 1974
Image located in U.S. Geological Survey Photographic Library, Crandell, D.R. Collection album, Volume 2, no.171.
Rights
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