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National Geologic Map Database
Geologic Unit: Osborne
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Map showing publication footprint
  • Usage in publication:
    • Osborne limestone
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Limestone
  • AAPG geologic province:
    • Anadarko basin
    • Central Kansas uplift
    • Salina basin
Publication:

Cragin, F.W., 1896, On the stratigraphy of the Platte series, or Upper Cretaceous of the Plains: Colorado College Studies, v. 6, p. 49-52.


Summary:

Pg. 51. Osborne limestone, lower formation of Niobrara division of Platte series. Limestone, in rather thick courses, overlying Vlctoria shale [also called Victoria formation and Victoria clays] and constituting lower formation of Niobrara. Overlain by Smoky Hill chalk, upper formation of Niobrara. Age is Late Cretaceous. Report includes fossil list.
Named from exposures at Osborne and in Osborne Co., north-central KS. Forms bluffs in forks of Walnut Creek, Ness County; occurs at Solomon River, Osborne County, and at Ft. Hays, southeastern Rooks County.

Source: US geologic names lexicon (USGS Bull. 896, p. 1566); supplemental information from GNU records (USGS DDS-6; Denver GNULEX).


Map showing publication footprint
  • Usage in publication:
    • Osborne limestone†
  • Modifications:
    • Abandoned
  • AAPG geologic province:
    • Anadarko basin
    • Central Kansas uplift
    • Salina basin
Publication:

Wilmarth, M.G., 1938, [Selected Geologic Names Committee remarks], IN Wilmarth, M.G., 1938, Lexicon of geologic names of the United States (including Alaska): U.S. Geological Survey Bulletin, 896, pts. 1-2, 2396 p.


Summary:

†Osborne limestone is same as Fort Hays limestone member of Niobrara formation, the better established name.

Source: US geologic names lexicon (USGS Bull. 896, p. 1566).


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 ([ ]).