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2023-08-09 21:37:09

Random Gadfly on Nostr: NOT YOUR AVERAGE RIPPLES ON THE BEACH _______________ An aerial photograph of the ...

NOT YOUR AVERAGE RIPPLES ON THE BEACH
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An aerial photograph of the West Barr area on the western side of the Columbia River in Washington state. This area is a large version of the current ripples you may see at a beach or river. However, these ripples are over 24 feet tall and spaced 360 feet apart and were formed by huge floods that carved out a large part of the state. The massive current required to form these giant ripples would have been at least 600 feet deep and flowing at over 65 miles an hour.
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Image from the Washington Geological Survey (Washington State DNR)
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