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National Geologic Map Database
Geologic Unit: Bainbridge
Map showing publication footprint
  • Usage in publication:
    • Bainbridge limestone
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Limestone
  • AAPG geologic province:
    • Illinois basin
    • Ozark uplift
Publication:

Ulrich, E.O., 1904, [Preliminary notes on classification and nomenclature of certain Paleozoic rock units in Cape Girardeau area, eastern Missouri], IN Buckley, E.R., and Buehler, H.A., The quarrying industry of Missouri: Missouri Bureau of Geology and Mines Report, 2nd series, v. 2, p. 109-111., Letter dated Jan. 9, 1904.


Summary:

Pg. 110. Bainbridge limestone proposed to embrace all Silurian [Niagaran] limestones beneath Bailey limestone in river bluffs for some miles above and below Bainbridge, eastern Missouri, also above and below Thebes, southwestern Illinois. [For next older formation Ulrich adopted Girardeau limestone in above report.]
[Named from Bainbridge, Cape Girardeau Co., eastern MO.]

Source: US geologic names lexicon (USGS Bull. 896, p. 102).


Map showing publication footprint
  • Usage in publication:
    • Bainbridge Formation*
  • Modifications:
    • Revised
  • AAPG geologic province:
    • Upper Mississippi embayment
    • Illinois basin
Publication:

Harrison, R.W., 1999, Geologic map of the Thebes quadrangle, Missouri and Illinois: U.S. Geological Survey Geologic Quadrangle Map, GQ-1779, scale 1:24,000 [http://ngmdb.usgs.gov/Prodesc/proddesc_19294.htm]


Summary:

Silurian (Niagaran and Cayugan) Bainbridge Formation mapped in MO and IL. Consists of argillaceous limestone, siltstone, limestone, and shale. Includes basal Seventy-Six Shale Member (not noted during mapping but possibly present), St. Clair Limestone Member, and Moccasin Springs Member, following usage of Thompson (1993). In addition, although Illinois Geological Survey gives Bainbridge group status, and includes a shale facies in southern part of IL and St. Clair and Moccasin Springs as formations (Willman and others, 1975), that usage is not followed here.

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


For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.

Asterisk (*) indicates usage by the U.S. Geological Survey. Other usages by state geological surveys.

"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 ([ ]).