Blue Mesa at Sunset
by Roger Passman
Title
Blue Mesa at Sunset
Artist
Roger Passman
Medium
Photograph - Photographic Prints/limited Edition Prints/licensing
Description
The Blue Mesa Member of the Chinle Formation at Painted Desert National Park consists of thick deposits of grey, blue, purple, and green mudstones and minor sandstone beds, the most prominent of which is the Newspaper Rock Sandstone. This unit is best exposed in the Tepees area of the park. The Blue Mesa Member is approximately 220-225 million years old.
The colorful Chinle, which appears on the surface in many parts of the southwestern United States and from which the Painted Desert gets its name, is up to 800 feet (240�m) thick in the park. It consists of a variety of sedimentary rocks including beds of soft, fine-grained mudstone, siltstone, and clay-stone�much of which is bentonite�as well as harder sandstone and conglomerate, and limestone. Exposed to wind and water, the Chinle usually erodes differentially into badlands made up of cliffs, gullies, mesas, buttes, and rounded hills. Its bentonite clay, which swells when wet and shrinks while drying, causes surface movement and cracking that discourages plant growth. Lack of plant cover makes the Chinle especially susceptible to weathering.
I exposed this image around 5 minutes before the sun disappeared beyond the western horizon. The HDR processing retains the shadow detail while retaining the warm band of light from the sun on this brilliant Autumn afternoon.
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A limited edition of 25 prints signed and numbered by the photographer are available directly from our studio. Sizes equivalent to any of the sizes offered as a print by demand through this online gallery are offered in this limited edition. These prints are only available directly from our studio gallery. Prints are delivered by US Mail rolled in a tube. For more information please contact me using the SEND PRIVATE MESSAGE option in the left sidebar of most of our online gallery pages.
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I processed the raw image file shot with a Canon 60D with an 28-105mm lens using Photomatix Pro 5, filters from Topaz Labs including Detail 3 as well as an ON1 filter vignette effect
Uploaded
October 17th, 2016
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