U.S. Geological Survey Home AASG Logo USGS HOME CONTACT USGS SEARCH USGS
National Geologic Map Database
Map showing publication footprint
  • Usage in publication:
    • Blue Cut shales
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Shale
    • Limestone
    • Sandstone
  • AAPG geologic province:
    • Anadarko basin
Publication:

Cragin, F.W., 1895, A study of the Belvidere beds: American Geologist, v. 16, p. 357-385.


Summary:

Pg. 361, 380. Blue Cut shales. Alternating blue-black and gray argillaceous shales, with minor beds of sandy shale, ferruginous sandstone, and shell limestone. The zone of typical and abundant mollusk GRYPHAEA ROEMERI. Forms top bed of Fullington shales. Overlies Black Hill shale (lower bed of Fullington shales) and underlies Tucumcari shales. Age is Early Cretaceous (Comanche).
[Named from "the Blue cut," a deep railway cut a few miles south-southwest of Belvidere in southeast Kiowa Co., central southern KS.]

Source: US geologic names lexicon (USGS Bull. 896, p. 218).


Map showing publication footprint
  • Usage in publication:
    • Blue Cut Shale
  • Modifications:
    • Not used
Publication:

Merriam, D.F., 1963, The geologic history of Kansas: Kansas Geological Survey Bulletin, no. 162, 317 p. [Available online from the Kansas Geological Survey: http://www.kgs.ku.edu/Publications/Bulletins/162]


Summary:

Appendix B, Catalog of Mesozoic nomenclature for Kansas. Blue Cut Shale of Cragin (1895). Cragin proposed name for part of the Kiowa, but now not used.

Source: Publication.


For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.

Asterisk (*) indicates usage by the U.S. Geological Survey. Other usages by state geological surveys.

"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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).