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Map showing publication footprint
  • Usage in publication:
    • Clarksville division
  • Modifications:
    • Named
  • AAPG geologic province:
    • Cincinnati arch
Publication:

Foerste, A.F., 1909, Preliminary notes on Cincinnatian and Lexington fossils: Denison University, Bulletin of the Scientific Laboratories, v. 14, p. 289-324.


Summary:

Named as a division of Richmond formation. Named for Clarksville, Clinton Co., southwestern OH. Includes all of Waynesville bed of Richmond formation between base of ORTHOCERAS FOSTERI horizon an base of lower HERNERTELLA INSCULPTA layer above. Overlain by Blanchester division; underlain by Fort Ancient division. [No lithologic information provided.]

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


Map showing publication footprint
  • Usage in publication:
    • Clarksville member
  • Modifications:
    • Revised
  • AAPG geologic province:
    • Cincinnati arch
Publication:

Stout, Wilber, Ver Steeg, Karl, and Lamb, G.F., 1943, Geology of water in Ohio: Ohio Division of Geological Survey Bulletin, 4th series, no. 44, 694 p.


Summary:

Shown on generalized section of OH as middle member of Waynesville formation. Underlies Blanchester member; overlies Fort Ancient member.

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


Map showing publication footprint
  • Usage in publication:
    • Clarksville Shale
  • Modifications:
    • Areal extent
  • Dominant lithology:
    • Shale
  • AAPG geologic province:
    • Cincinnati arch
Publication:

Butler, J.C., and Scotford, D.M., 1973, Re-examination of Upper Cincinnatian shale petrology: Geological Society of America Bulletin, v. 84, no. 7, p. 2431-2434.


Summary:

Unit here referred to as Clarksville Shale. Occurs in OH, KY, and IN. Age is Late Ordovician (Cincinnatian).

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


Map showing publication footprint
  • Usage in publication:
    • Clarksville Member
  • Modifications:
    • Overview
  • AAPG geologic province:
    • Cincinnati arch
Publication:

Velbel, D.B., 1985, Ichnologic, taphonomic, and sedimentologic clues to the deposition of Cincinnatian shales (Upper Ordovician), Ohio, U.S.A., IN Curran, H.A., Biogenic structures; their use in interpreting depositional environments: Society of Economic Paleontologists and Mineralogists Special Publication, Symposium, Denver, CO, June, 1980, no. 35, p. 299-307.


Summary:

Clarksville Member of Waynesville Formation shown in stratigraphic column of southwestern OH. Overlies Fort Ancient Member and underlies Blanchester Member, both of Waynesville. Age is Late Ordovician (Cincinnatian).

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


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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 ([ ]).

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