Show Navigation
back to search results

Hiker at Double O Arch, Devils Garden Trail, Arches National Park, near Moab, Utah, USA.

A hiker explores Double O Arch, Devils Garden Trail, Arches National Park, near Moab, Utah, USA. A thick underground salt bed underlies the creation of the park's many arches, spires, balanced rocks, sandstone fins, and eroded monoliths. Some 300 million years ago, a sea flowed into the area and eventually evaporated to create the salt bed up to thousands of feet thick. Over millions of years, the salt bed was covered with debris eroded from the Uncompahgre Uplift to the northeast. During the Early Jurassic (about 210 million years ago) desert conditions deposited the vast Navajo Sandstone. On top of that, about 140 million years ago, the Entrada Sandstone was deposited from stream and windblown sediments. Later, over 5000 feet (1500 m) of younger sediments were deposited and then mostly worn away, leaving the park's arches eroded mostly within the Entrada formation.

Add to Cart Add to Lightbox Download
Filename
1403UT-215_Double-O-Arch_Devils-Garden.jpg
Copyright
© Tom Dempsey / PhotoSeek.com
Image Size
5333x8000 / 10.3MB
http://www.photoseek.com/
Contained in galleries
2014 Mar 15-Apr 09: all: southwest (UT, NM, TX), OR, CA, Utah: Arches National Park
A hiker explores Double O Arch, Devils Garden Trail, Arches National Park, near Moab, Utah, USA. A thick underground salt bed underlies the creation of the park's many arches, spires, balanced rocks, sandstone fins, and eroded monoliths. Some 300 million years ago, a sea flowed into the area and eventually evaporated to create the salt bed up to thousands of feet thick. Over millions of years, the salt bed was covered with debris eroded from the Uncompahgre Uplift to the northeast. During the Early Jurassic (about 210 million years ago) desert conditions deposited the vast Navajo Sandstone. On top of that, about 140 million years ago, the Entrada Sandstone was deposited from stream and windblown sediments. Later, over 5000 feet (1500 m) of younger sediments were deposited and then mostly worn away, leaving the park's arches eroded mostly within the Entrada formation.
Info