Image: Crater Lake Lichen Wall
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Description: Lichen Colors on the rim of Crater Lake in Oregon, USA. The rock that forms this East Palisade cliff is the Roundtop Andesite lava flow. It has been dated at 159,000±13,000 years old. (Reference: Bacon, C.R. (2008) Geologic Map of Mount Mazama and Crater Lake Caldera, Oregon, U.S. Geological Survey Scientific Investigations Map 2832 Version 1.0, photo 20 - The Palisades). Some parts of the lava flow display columnar jointing.
Title: Crater Lake Lichen Wall
Credit: Own work
Author: Markgorzynski
Usage Terms: Creative Commons Attribution-Share Alike 3.0
License: CC BY-SA 3.0
License Link: https://creativecommons.org/licenses/by-sa/3.0
Attribution Required?: Yes
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