Cutler Formation: Difference between revisions

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wiki for White Rim Sandstone...(and did the age sorting)...(oldest), on bottom (duh...)
m (wiki for White Rim Sandstone...(and did the age sorting)...(oldest), on bottom (duh...))
[[Image:SEUtahStrat.JPG|thumb|300px|The [[Permian]] through [[Jurassic]] stratigraphy of the [[Colorado Plateau]] area of southeastern [[Utah]] that makes up much of the famous prominent rock formations in protected areas such as [[Capitol Reef National Park]] and [[Canyonlands National Park]]. From top to bottom: Rounded tan domes of the [[Navajo Sandstone]], layered red [[Kayenta Formation]], cliff-forming, vertically-jointed, red [[Wingate Sandstone]], slope-forming, purplish [[Chinle Formation]], layered, lighter-red [[Moenkopi Formation]], and white, layered Cutler Formation sandstone. Picture from [[Glen Canyon National Recreation Area]], Utah.]]
The '''Cutler''' is a rock unit that is spread across the [[U.S. states]] of [[Arizona]], northwest [[New Mexico]], southeast [[Utah]] and southwest [[Colorado]]. It was laid down in the [[Permian|Early Permian]] during the [[Wolfcampian]] stage. In Arizona and Utah it is often called the '''Cutler Group''' but the preferred [[United States Geological Survey|USGS]] name is '''Cutler Formation''''.<ref>[http://ngmdb.usgs.gov/Geolex/NewUnits/unit_7824.html GEOLEX database entry for 'Cutler'] Accessed 18 March 2006</ref> Its subunits, therefore, are variously called formations or [[member (geology)|member]]s depending on the publication. This article will use the national standard set by the USGS. Members (youngest to oldest [age sorting needs to be checked]):
*Elephant Canyon (Utah)
*Halgaito (Arizona, Colorado, New Mexico, Utah)
*[[Cedar Mesa Sandstone]] (Arizona, Utah)
*Organ Rock Shale (Arizona, Colorado, New Mexico, Utah)
*White Rim Sandstone (Utah)
*De Chelly Sandstone (Arizona, Colorado, New Mexico, Utah)
*[[White Rim Sandstone]] (Utah)
*Organ Rock Shale (Formation) (Arizona, Colorado, New Mexico, Utah)
*[[Cedar Mesa Sandstone]] (Arizona, Utah)
*Elephant Canyon Formation (Utah)
*Halgaito (Arizona, Colorado, New Mexico, Utah)-(oldest)
 
== Extent ==