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Map showing publication footprint
  • Usage in publication:
    • Blanchester division
  • Modifications:
    • Named
  • Dominant lithology:
    • Shale
  • 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:

Upper part of Waynesville bed of Richmond formation referred to here as Blanchester division of Richmond group. Beds lie between top of upper HERBERTELLA INSCULPTA horizon and base of lower HERBERTELLA INSCULPTA horizon. Overlies Clarksville division and underlies Liberty beds. Age is Late Ordovician.

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


Map showing publication footprint
  • Usage in publication:
    • Blanchester 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:

Unit shown on generalized section of OH as uppermost member of Waynesville formation. Overlies Clarksville member; underlies Liberty formation.

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


Map showing publication footprint
  • Usage in publication:
    • Blanchester 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:

Blanchester Member of Waynesville Formation shown as current usage in stratigraphic column of southwestern OH. Overlies Clarksville Member of Waynesville and underlies Liberty Formation. Age is 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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).