Pg. 1782-1793. Nippewalla group. Proposed for group of related formations (ascending) : Harper sandstone (restricted), Salt Plain formation, Cedar Hills sandstone, and Flower-pot shale. Lies between Stone Corral formation below and Blaine formation above. Cimarron series.
Named from town of Nippewalla, in T. 33 N., R. 11 and 12 W., Barber Co., southern KS.
Source: US geologic names lexicon (USGS Bull. 1200, p. 2751).
Pg. 157-159. Nippewalla group. Includes (ascending) Harper sandstone, Salt Plain formation, Cedar Hills sandstone, Flowerpot [Flower-pot] shale, Blaine formation, and Dog Creek shale. Thickness approximately 930 feet. Overlies Sumner group; underlies Whitehorse sandstone. Age is Early Permian (Leonardian).
Source: US geologic names lexicon (USGS Bull. 1200, p. 2751).
Extended as an undivided unit into the subsurface of Baca County, Colorado, in the Anadarko basin, east of the Las Animas arch. Overlies Sumner group (undivided) and underlies Whitehorse sandstone. Age is Permian (Leonardian). Report includes correlation chart.
Source: Modified from GNU records (USGS DDS-6; Denver GNULEX).
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
Asterisk (*) indicates published by U.S. Geological Survey authors.
"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).
Slash (/) indicates name conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).