- Usage in publication:
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- Atwater Creek shale
- Modifications:
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- Areal extent
- Dominant lithology:
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- Shale
- AAPG geologic province:
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- Appalachian basin
Summary:
Pg. 51, 60, 62, 63, 76, 147, 148, 150. Atwater Creek shale. The northern Frankfort [sb.] is thus not younger than the typical Frankfort, but older, and either of later Utica or early Frankfort age. We will for that reason distinguish it as Atwater Creek shale. Is the zone of GLOSSOGRAPTUS QUADRIMUCRONATUS, FORMA TYPICA. Consists of black and gray shales. Overlies Deer River shale (of basal Lorraine age and = basal part of Frankfort shale), and on charts is correlated with a part of Frankfort shale. [In some parts of this report Atwater Creek shale is applied to beds below Whetstone Gulf shale and in other parts of report of the Atwater Creek is included in Whetstone Gulf formation.] Age is Late Ordovician.
Recognized in Black River Valley, eastern NY.
Source: US geologic names lexicon (USGS Bull. 896, p. 90).
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 ([ ]).