- Usage in publication:
-
- Snow Flake Formation
- Modifications:
-
- Named
- Dominant lithology:
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- Shale
- Limestone
- AAPG geologic province:
-
- Appalachian basin
Summary:
The Snow Flake Formation, informally named by Sanders (1952), is here named in the Greendale syncline in Hawkins and Grainger Cos., TN, where Mississippian strata previously named Newman Limestone by Hardeman and others (1966), are isolated from the Newman Limestone in the Newman Ridge syncline. The Snow Flake consists of fossiliferous, calcareous shale, silty shale, and limestone. Overlies Laurel Branch Limestone; underlies Clifton Creek Limestone. Thickness is 36 m (120 ft). Age is Mississippian.
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 ([ ]).