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Map showing publication footprint
  • Usage in publication:
    • Logansport limestone
  • Modifications:
    • Named
  • Dominant lithology:
    • Limestone
  • AAPG geologic province:
    • Cincinnati arch
Publication:

Cooper, G.A., and Warthin, A.S., Jr., 1941, New Middle Devonian names [of geologic formations]: Washington Academy of Sciences Journal, v. 31, no. 6, p. 250-260.


Summary:

Logansport limestone is new name for strata at Pipe Creek Falls, Cass Co., north-central IN, previously correlated with Onondaga limestone. Consists of 12 ft of light-colored granular limestone, fossiliferous in upper half. Overlies Silurian rocks at type locality. Age is Middle Devonian.

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


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

Cooper, G.A., and Phelan, Thomas, 1966, STRINGOCEPHALUS in the Devonian of Indiana: Smithsonian Miscellaneous Collections, v. 151, no. 1, 21 p.


Summary:

Logansport Limestone stratigraphically restricted. Basal 12 to 15 ft assigned to newly named Miami Bend Formation. Age is Givetian.

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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