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Geologic Unit: Turkey Branch
Map showing publication footprint
  • Usage in publication:
    • Turkey Branch Formation
  • Modifications:
    • First used
  • Dominant lithology:
    • Sandstone
    • Siltstone
    • Shale
  • AAPG geologic province:
    • Piedmont-Blue Ridge province
    • Richmond basin
Publication:

Cornet, Bruce, and Olsen, P.E., 1990, Early and middle Carnian (Triassic) flora and fauna of the Richmond and Taylorsville basins, Virginia and Maryland, U.S.A.: Virginia Museum of Natural History Guidebook, no. 1, 83 p.


Summary:

Nomenclature in this report follows Ediger and others (in prep). Richmond basin sequence is divided into three formations (ascending): Tuckahoe, Turkey Branch, and Otterdale Formations. Contacts are unconformable. Turkey Branch is divided into (ascending) Hidden and Tomahawk Creek Members [both first used]. Thickness of Turkey Branch approximately 4,000 ft. Age is middle Carnian. Correlates with the upper part of the Doswell Formation in the Taylorsville basin.

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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