- Usage in publication:
-
- Silver Creek light soft shales
- Modifications:
-
- Original reference
- AAPG geologic province:
-
- Appalachian basin
Summary:
Pg. 1019-1029. Silver Creek light soft shales, 112 feet thick, underlie Dunkirk black shale and overlie Angola soft shales with concretions in Lake Erie section of Portage group. [Age is Late Devonian.]
Source: US geologic names lexicon (USGS Bull. 896, p. 1998).
- Usage in publication:
-
- Silver Creek shale†
- Modifications:
-
- Abandoned
- AAPG geologic province:
-
- Appalachian basin
Summary:
Pg. 76. Hanover shales (nom. nov.). Name is from exposures in town of Hanover, Chautauqua County, western New York, and is here used in place of †Silver Creek (preoccupied). Excellent exposures in Walnut and Silver Creek Ravines. Equivalent to upper part of Hatch shale and flags of eastern sections. [Age is Late Devonian.]
Source: US geologic names lexicon (USGS Bull. 896, p. 1998).
- Usage in publication:
-
- Silver Creek shale†
- Modifications:
-
- Abandoned
- AAPG geologic province:
-
- Appalachian basin
Summary:
Pg. 157. Hanover shales much younger than Hatch shales and = Wiscoy shales. Disconformably overlie Angola shales and disconformably underlie Dunkirk black shale. [Age is Late Devonian.]
Source: US geologic names lexicon (USGS Bull. 896, p. 1998).
- Usage in publication:
-
- Silver Creek shale†
- Modifications:
-
- Abandoned
- AAPG geologic province:
-
- Appalachian basin
Summary:
Pg. 69. [In this table Chadwick seems to have restricted Hanover shale, because he gave following as succession in Chautauqua County, western New York (downward): Dunkirk shale; Hanover shale; Pipe Creek shale; hiatus(?) equivalent to Nunda sandstone; and Angola shale; and correlated Hanover and Pipe Creek shales with Wiscoy shale.]
Source: US geologic names lexicon (USGS Bull. 896, p. 1998).
- Usage in publication:
-
- Silver Creek shale†
- Modifications:
-
- Abandoned
- AAPG geologic province:
-
- Appalachian basin
Summary:
Pg. 149. Hanover shale (formerly Silver Creek shale), is highest member of Portage group on Lake Erie. Has been traced continuously into Wiscoy shale of Genesee Valley. [Age is Late Devonian.]
Source: US geologic names lexicon (USGS Bull. 896, p. 1998).
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 ([ ]).