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Reminded me of this[1]: leaves (and a stick in the background) creating a "rain shadow" on a river beach, resulting in sand pedestals. [1] https://secure.flick
by l0b0 4y ago
Reminded me of this[1]: leaves (and a stick in the background) creating a "rain shadow" on a river beach, resulting in sand pedestals.
[1] https://secure.flickr.com/photos/l0b0/50830815242/ https://secure.flickr.com/photos/l0b0/50830815242/
- rob74 4y agoThat's the "hoodoo mechanism" which is also mentioned in the article: on a bigger scale, when you have a layer of harder rock on top of softer rock, you get hoodoos (also called earth pyramids or tent rocks): https://en.wikipedia.org/wiki/Hoodoo_(geology) https://en.wikipedia.org/wiki/Hoodoo_(geology)
- l0b0 4y agoNice, TIL. I wonder if there's a name for these ephemeral sand formations, as hoodoos seem to be more permanent.