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Map showing publication footprint
  • Usage in publication:
    • McMicken [member]
  • Modifications:
    • Named
  • Dominant lithology:
    • Shale
    • Limestone
  • AAPG geologic province:
    • Cincinnati arch
Publication:

Bassler, R.S., 1906, A study of the James types of Ordovician and Silurian Bryozoa: U.S. National Museum Proceedings, v. 30, p. 1-66.


Summary:

Name McMicken introduced for highly calcareous and extremely fossiliferous shales and limestones composing upper third of Eden formation. Thickness 60 ft. Contains abundant bryozoan DEKAYELL ULRICHI. Age is Late Ordovician. [Wilmarth (1938, US geologic names lexicon, USGS Bull. 896) states that unit is currently treated as upper member of Latonia shale of Eden group (reference(s) not given).]

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


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

Patton, J.B., Perry, T.G., and Wayne, W.J., 1953, Ordovician stratigraphy and the physiography of part of southeastern Indiana: Indiana Geological Survey Field Conference Guidebook, no. 6, 29 p.


Summary:

Pl. 1. McMicken formation of Eden group. Shown on generalized stratigraphic column of Ordovician and Silurian rocks exposed in Jefferson and Switzerland Counties, [eastern] Indiana (J.J. Galloway, J.B. Patton, and T.G. Perry, compilers, April 1953). Consists of blue- or greenish-gray, soft shale and drab-gray, irregularly bedded, impure limestone. Thickness 60 to 80 feet. Is top formation of Eden group; overlies Southgate formation. Underlies Mount Hope formation of Maysville group. Fossils [listed]. Age is Late Ordovician (Cincinnatian).

Source: Publication; US geologic names lexicon (USGS Bull. 1200, p. 2309).


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

Stratigraphic column illustrates continued usage of McMicken Member of Latonia Formation. Overlies Southgate Member of Latonia and underlies Mount Hope Member of Fairview Formation. Age is Late Ordovician (Cincinnatian).

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


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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 ( ).

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