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| Presidents carved in granite. Image taken from wikipedia here. |
Lab is nice and quiet today, in honor of our nation's presidents. Excellent. I always accomplish more on holidays! Fewer people around to distract me.
In honor of Presidents' Day, here is a document published by the U.S. National Park Service about the geology of Mt. Rushmore:
Mount Rushmore National Memorial Geologic Resource Evaluation Report
And here is a simple geologic map of the Mt. Rushmore area taken from the above document:
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| Simple geologic map of the Mt. Rushmore area. Figure taken from here. |
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