U.S. Geological Survey Home AASG Logo USGS HOME CONTACT USGS SEARCH USGS
National Geologic Map Database
Geologic Unit: Kanwaka
Search archives
Map showing publication footprint
  • Usage in publication:
    • Kanwaka shales*
  • Modifications:
    • Named
  • Dominant lithology:
    • Shale
  • AAPG geologic province:
    • Forest City basin
Publication:

Adams, G.I., 1903, Stratigraphy of the region, IN Adams, G.I, Girty, G.H., and White, David, Stratigraphy and paleontology of the Upper Carboniferous rocks of the Kansas section: U.S. Geological Survey Bulletin, 211, p. 15-72.


Summary:

Presumably named for town of Kanwaka, Douglas Co, KS in the Forest City basin. Was formerly called Lecompton shales by Haworth (1898). No type locality designated. Occurs in eastern KS in Lecompton, Douglas Co, where the shales [not described] are reported by Bennett to be 100 ft thick; extends south to south of the Verdigris River where sandstones are present. Overlies Oread limestone and underlies Lecompton limestone. Of late Carboniferous age.

Source: GNU records (USGS DDS-6; Denver GNULEX).


Map showing publication footprint
  • Usage in publication:
    • Kanwaka shale member
  • Modifications:
    • Revised
  • AAPG geologic province:
    • Forest City basin
Publication:

Condra, G.E., 1927, The stratigraphy of the Pennsylvanian system in Nebraska: Nebraska Geological Survey Bulletin, 2nd series, no. 1, 291 p., See also "Modern classifications of the Pennsylvanian rocks of eastern Kansas and southeastern Nebraska," compiled by M.G. Wilmarth, Secretary of Committee on Geologic Names, USGS unpub. corr. chart, Oct. 1936, sheet 1


Summary:

Kanwaka shale member of Shawnee formation. Includes Kereford limestone bed at base. Overlies Oread limestone member of Douglas formation and underlies Lecompton limestone member of Shawnee formation. Age is Pennsylvanian (Missouri age). Report includes cross sections, measured sections, geologic maps, stratigraphic tables.

Source: GNC KS-NE Pennsylvanian Corr. Chart, sheet 1, Oct. 1936; supplemental information 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 ([ ]).

Accessibility FOIA Privacy Policies and Notices

USA Gov U.S. Department of the Interior | U.S. Geological Survey
Supported by the National Cooperative Geologic Mapping Program
Page Contact Information: Personnel
Page Last Modified: Thu 04 Apr 2024 04:01:25 PM MDT