Naturita Formation | |
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Stratigraphic range: Cenomanian ~ | |
![]() Type locality for the Naturita Formation above the former Nucla coal power plant, Naturita, Colorado | |
Type | Geological formation |
Sub-units | Culver Coal Zone member |
Underlies | Mancos Shale |
Overlies | Cedar Mountain & Burro Canyon Formations |
Lithology | |
Primary | Mudstone |
Other | Shale, sandstone |
Location | |
Coordinates | 37°36′N 112°54′W / 37.6°N 112.9°W |
Approximate paleocoordinates | 39°24′N 75°30′W / 39.4°N 75.5°W |
Region | Colorado, Utah |
Country | United States |
Type section | |
Named for | Naturita, Colorado |
The Naturita Formation is a classification used in western Colorado and eastern Utah for a Cretaceous Period sedimentary geologic formation. This name was "applied to the upper or carbonaceous part of Dakota Group" by R.G. Young in 1960, naming it for Naturita, Colorado.[1] The name is not used by U.S. Geological Survey authors,[2] but has found growing acceptance by the Utah Geological Survey[3][4][5]
[Geolex indicates that no U.S. Geological Survey authors have used the name.]
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