Sand Tufa - The Fortress

© Craig W. Myers

Sand Tufa - The Fortress

Lori Carlson April 06, 2010

This is amazing! Thanks for sharing!! =) #1255885

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Description

1/1600 @ f/5.6, 35mm, ISO 400, Tamron 17-35mm lens. As many times as I'd heard of the tufa towers of Mono Lake, I had never heard of the sand tufas. To paraphrase the signage: Like the larger tufa towers, sand tufa forms where calcium-rich spring water reacts with Mono Lake's carbonate-rich water. If a spring percolates through sandy lake bottom, the sand becomes part of the solid tufa. When the lake level drops, the enveloping sand is blown or is washed away, exposing intricate and fragile shapes. The sand tufas are much smaller and more fragile than their more well-known cousins. The one pictured here was no more the 3' tall.

Exif: F Number: 5.6, Exposure Bias Value: -0.67, ExposureTime: 1/1600 seconds, Flash: did not fire, compulsory flash mode, ISO: 400, White balance: Manual white balance, FocalLength: 35.00 mm, Model: Canon EOS 20D

Uploaded on June 18, 2009


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