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Map showing publication footprint
  • Usage in publication:
    • Eighteenmile Creek member
  • Modifications:
    • Areal extent
  • AAPG geologic province:
    • Appalachian basin
Publication:

Sutton, R.G., 1951, Stratigraphy and structure of the Batavia quadrangle [New York]: Rochester Academy of Science Proceedings, v. 9, nos. 5-6, p. 348-408.


Summary:

Name Eighteenmile Creek member of Ludlowville formation credited to G.A. Cooper (1929: unpub. thesis). Described simply in this report as shale overlying the Spring Brook shale member in Lake Erie sections. Cooper (1930) combines strata to form Wanakah member. Age is Middle Devonian.

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


Map showing publication footprint
  • Usage in publication:
    • Eighteenmile Creek Submember
  • Modifications:
    • Revised
  • AAPG geologic province:
    • Appalachian basin
Publication:

McCollum, L.B., 1991, Revised stratigraphy, sedimentology, and paleoecology of the Ledyard Member, Ludlowville Formation, New York, IN Landing, Ed, and Brett, C.E., eds., Dynamic stratigraphy and depositional environments of the Hamilton Group (Middle Devonian) in New York State, Part II: New York State Museum Bulletin, no. 469, p. 107-128.


Summary:

Spring Brook and Eighteenmile Creek Members of Ludlowville Formation reduced in rank in this report to submembers of Wanakah Member in keeping with nomenclature presented here for the Ledyard Member.
["Submember" not recognized as a formal stratigraphic rank term (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). Considered informal until formally published. The rank or lithologic term should not be capitalized.]

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

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