USGS Visual Identifier
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Geologic Unit: Cedar Hills

Usage:
Cedar Hills Sandstone of Nippewalla Group (KS*)
Cedar Hills Sandstone of El Reno Group (OK*)
Cedar Hills Member of Hennessey Shale (OK)
Cedar Hills Member of Salt Fork Formation (NE)

Age:
Permian, Early*


Geologic Province:
Sedgwick basin*
Anadarko basin*

Areal Extent:
KS*
NE
OK*

Type Locality:
Named from Cedar Hills, Barber Co., KS (Cragin, 1896).
[See also 3 sections measured by Ada Swineford, 1955, in Barber Co. Available online from the Kansas Geological Survey, "Kansas by County" Data Explorer http://www.kgs.ku.edu/DB/kbc.html: Barber Co.; Other databases -measured sections; T. 31 S., R. 11 W. (Section 28); T. 32 S., R. 10 W. (Section 9); T. 32 S., R. 12 W. (Section 20)]

Subunits:
FORMATION STATUS (alphabetical): Peace Treaty Bed (KS), Piedmont Bed (OK).
MEMBER STATUS (alphabetical): Peace Treaty Bed (OK), Reeding Sandstone [Bed] (OK).

Unit Name History:
[Please note: only the Cragin (1896), Gould (1902), and Moore and others (1951) references include synopses here. The remaining references have yet to be added from US geologic names lexicon, USGS Bull. 1200.]
Name proposed for formation in the Salt Plain division of the Cimarron series (Cragin, 1896).
Assigned to Norman division (Gould, 1902).
Assigned to Nippewalla Group (new) (Norton, 1939).
Described in KS (Moore and others, 1951).
OK State Geol. Map usage, mapped as sandstone member of Hennessey Shale (Miser and others, 1954).
[Please note: further references have yet to be added from the GNC index card files. Until then, feel free to contact us if you would like a complete list of the references for this unit.]

Note: If you need more information, please contact Nancy Stamm (nstamm@usgs.gov).
Asterisks (*) indicate usage by the U.S. Geological Survey. Other usages by state geological surveys.

"No current usage" implies that a name has been abandoned or that it has fallen into disuse. Former usage and, if known, replacement name given in parentheses ().

Slashes (/) indicate unit name usage violates the 1983 North American Stratigraphic Code. This violation may be explained within brackets ([ ]).






U.S. Department of the Interior, U.S. Geological Survey, Reston, VA, USA
URL http://ngmdb.usgs.gov/ngmdb/ngm_catalog.ora.html
Database project personnel
Last modified: 15-Jan-2013