Tufas and Paoha Island
by Michael Gordon
Title
Tufas and Paoha Island
Artist
Michael Gordon
Medium
Photograph - Digital Photograph
Description
Tufa is essentially common limestone. What is uncommon about this limestone is the way it forms. Typically, underwater springs rich in calcium mix with lake water rich in carbonates. As the calcium encounters carbonates in the lake, a chemical reaction occurs resulting in calcium carbonate---limestone. The calcium carbonate precipitates around the spring, and over the course of decades to centuries, a tufa tower will grow.
Recent eruptions of lava and cinder built the islands of Mono Lake, and by uplift of the shallow lake bottom caused by the rise of magma beneath the lake. The islands are less than 2,000 years old, and the lava flows on the north flank of Paoha Island are only about 250 years old.
Mono Lake sits at the entrance to the Tioga Pass into Yosemite National Park at the intersection of US 395. Supported by a local community, Lee Vining, CA; the community provides visitor accommodations and visitor information on the lake and Tufa formations
Uploaded
June 10th, 2017
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Viewed 134 Times - Last Visitor from New York, NY on 03/20/2024 at 4:49 AM
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