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Geologic Unit: Cannon
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Map showing publication footprint
  • Usage in publication:
    • Cannon limestone*
  • Modifications:
    • Areal extent
  • Dominant lithology:
    • Limestone
  • AAPG geologic province:
    • Appalachian basin
Publication:

Ulrich, E.O., 1911, Revision of the Paleozoic systems: Geological Society of America Bulletin, v. 22, p. 281-680.


Summary:

Pg. 417, 418, 429, pl. 27. Cannon limestone. Several hundred feet of limestone of Trenton age on eastern flank of Nashville dome, covering time interval of Bigby, Flanagan, and Perryville limestones and Catheys formation. Thins rapidly to west, and finally wedges out in vicinity of Nashville. Overlies Hermitage formation and is older than Eden group. [Age is Middle Ordovician (Trenton).]

Source: US geologic names lexicon (USGS Bull. 896, p. 335).


Map showing publication footprint
  • Usage in publication:
    • Cannon Limestone
  • Modifications:
    • Areal extent
    • Revised
  • AAPG geologic province:
    • Appalachian basin
Publication:

Milici, R.C., and Smith, J.W., 1969, Stratigraphy of the Chickamauga Supergroup in its type area, IN Precambrian-Paleozoic Appalachian problems: Georgia Geologic Survey Bulletin, no. 80, p. 1-35., Prepared in cooperation with Tennessee Div. Geol. Also issued as Tennessee Div. Geol. Rpt. Inv., no. 24, 35 p., 1969 (Reprint). Available online


Summary:

Geographically extended the Cannon Limestone to northwestern GA and included it in the Nashville Group (middle formation of three). Consists of medium dark gray calcilutite and calcarenite in well defined beds generally 2 to 6 inches thick that contains chert lenses and nodules; It is fossiliferous and contains TETRADIUM, brachiopods, bryozoans, and gastropods. Thickness is 110 to 120 feet. Unit overlies the Hermitage Formation and underlies the Catheys Formation, both of the Nashville Group.

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


Map showing publication footprint
  • Usage in publication:
    • Cannon Limestone*
  • Modifications:
    • Areal extent
  • AAPG geologic province:
    • Appalachian basin

Map showing publication footprint
  • Usage in publication:
    • Cannon Member
  • Modifications:
    • Revised
  • AAPG geologic province:
    • Appalachian basin
Publication:

Chowns, T.M., 1989, Stratigraphy of major thrust sheets in the Valley and Ridge province of Georgia, IN Fritz, W.J., ed., Excursions in Georgia geology: Georgia Geological Society Guidebook, Joint annual meeting of Geological Society of America, Southeastern Section, and Georgia Geological Society, Atlanta, GA, April 6-7, 1989, v. 9, no. 1, p. 211-238.


Summary:

Catheys (Catoosa Co.) and Cannon and Hermitage (Walker Co.) regarded as members of Nashville Formation of Chickamauga Group in this report, following the nomenclature of Carter and Chowns (1986: AL Geol. Soc. Guidebook, 23rd Ann. Field Trip) and Carter and Chowns (in press: Amer. Assoc. Pet. Geol., Studies in Geology).

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


Map showing publication footprint
  • Usage in publication:
    • Cannon Limestone*
  • Modifications:
    • Overview
  • AAPG geologic province:
    • Cincinnati arch
Publication:

Clark, S.H.B., Spanski, G.T., Hadley, D.G., and Hofstra, A.H., 1993, Geology and mineral resource potential of the Chattanooga 1 degree x 2 degrees quadrangle, Tennessee and North Carolina; a preliminary assessment: U.S. Geological Survey Bulletin, 2005, 35 p.


Summary:

Nashville Group, consisting of Catheys Formation, Bigby and Cannon Limestones, and Hermitage Formation, is mapped undivided on plate 1. Age of Cannon is Middle Ordovician. Cannon correlates with Bigby.

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


Map showing publication footprint
  • Usage in publication:
    • Cannon Limestone*
  • Modifications:
    • Age modified
  • AAPG geologic province:
    • Cincinnati arch

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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 ([ ]).