Portraits of Wildflowers

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Archive for January 31st, 2017

Tafoni

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From my big Southwest tour I learned the geological term tafoni, a plural noun that refers to “small, rounded, smooth-edged openings in a rock surface, most often found in arid or semi-arid deserts. They can occur in clusters looking much like a sponge and are nearly always on a vertical or inclined face protected from surface runoff.” Such formations have also been called “honeycomb weathering” and “swiss-cheese rock.” The example above is from Arizona’s Wupatki National Monument on October 21st of last year.

The formation shown below from Nevada’s Valley of Fire State Park on October 24th represents a different sort of tafoni that you can imagine inspiring the practitioners of Art Nouveau.

To learn more about tafoni and see many more instances, check out Kuriositas or Wikipedia.

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© 2017 Steven Schwartzman

Written by Steve Schwartzman

January 31, 2017 at 5:00 AM

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