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Map showing publication footprint
  • Usage in publication:
    • Coonewah bed
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Chalk
  • AAPG geologic province:
    • Black Warrior basin
Publication:

Mellen, F.F., 1958, Cretaceous shelf sediments of Mississippi: Mississippi Geological Survey Bulletin, no. 85, 112 p.


Summary:

Pg. 29-40. Coonewah bed of Annona Chalk. Name applied to a 2-ft bed of relatively pure chalk near the top of the Annona. Age is Late Cretaceous.
Type locality: west valley wall of Coonewah Creek, 2.5 mi west of Verona, approx. at southeast corner of SW/4 sec. 22, T. 10 S., R. 5 E., Lee Co., northern MS.
[Coonewah Bed now (ca. 1960) included in Demopolis Formation; Annona restricted from MS.]

Source: US geologic names lexicon (USGS Bull. 1200, p. 927).


Map showing publication footprint
  • Usage in publication:
    • Coonewah Bed
  • Modifications:
    • Revised
    • Areal extent
  • AAPG geologic province:
    • Black Warrior basin
    • Upper Mississippi embayment
Publication:

Russell, E.E., Keady, D.M., Mancini, E.A., and Smith, C.C., 1983, Upper Cretaceous lithostratigraphy and biostratigraphy in northeast Mississippi, southwest Tennessee, and northwest Alabama, shelf chalks and coastal clastics: Society of Economic Paleontologists and Mineralogists, Gulf Coast Section, Field Trip Guidebook, Spring meeting, April 7-9, 1983, p. 1-72.


Summary:

Assigned to lower portion of Demopolis Formation along with the X-point of Stearns (1957). Shown in fig. 4 as occurring in MS and TN.

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


Map showing publication footprint
  • Usage in publication:
    • Coonewah Bed
  • Modifications:
    • Overview
Publication:

Dockery, D.T., III, 2008, [Mesozoic stratigraphic units in Mississippi]: Mississippi Office of Geology, 1 p., [Revision of Mississippi Geology, v. 17, no. 1, p. 1-8, March 1996]


Summary:

Coonewah Bed of Demopolis Formation. Lies within "middle chalk member" of Demopolis Formation. Intertongues with Selma Chalk (Selma Group) of downdip (south) area. Age is Late Cretaceous (late Campanian; Tayloran Provincial Age); planktic foram zone G. CALCARATA (of Caron, 1985), calcareous nannofossil zones CC21 to CC22.

Source: Publication.


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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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