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National Geologic Map Database
Map showing publication footprint
  • Usage in publication:
    • Schroyer limestone member
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Limestone
    • Shale
  • AAPG geologic province:
    • Nemaha anticline
Publication:

Condra, G.E., and Upp, J.E., 1931, Correlation of the Big Blue series in Nebraska: Nebraska Geological Survey Bulletin, 2nd series, no. 6, 74 p., See also "Modern classifications of the Permian rocks of Kansas and Nebraska," compiled by M.G. Wilmarth, Secretary of Committee on Geologic Names, USGS unpub. corr. chart, Oct. 1936, 1 sheet


Summary:

Schroyer limestone. Top member of Wreford limestone of Chase group. Chert-bearing limestone, 8 or 9 feet thick in vicinity of Cambridge, Cowley County, eastern Kansas, and about 20 feet thick in Big Blue Valley, in vicinity of Randolph. In Nebraska its maximum exposed thickness is about 10 feet, in a small creek valley 3 miles southeast of Wymore. Overlies Havensville shale member of Wreford limestone and underlies Wymore shale member of Matfield formation of Chase group. Age is Permian (Big Blue).
Type locality: on east side of Big Blue Valley, about 1.25 mi below Schroyer, Marshall Co., eastern KS.

Source: US geologic names lexicon (USGS Bull. 896, p. 1942); GNC KS-NE Permian Corr. Chart, Oct. 1936.


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 ([ ]).