- Usage in publication:
-
- Gowanda beds
- Modifications:
-
- Original reference
- Dominant lithology:
-
- Shale
- AAPG geologic province:
-
- Appalachian basin
Summary:
Pg. 157. Gowanda beds. Name replaces "Portland beds," preoccupied and withdrawn. Overlie Dunkirk black shale and unconformably underlie Laona sandstone. Assigned to Chemung. [The †Portland shale had been included in Portage group by Clarke, Luther, and Hartnagel.]
Source: US geologic names lexicon (USGS Bull. 896, p. 845).
- Usage in publication:
-
- Gowanda shale
- Gowanda beds
- Modifications:
-
- Areal extent
- AAPG geologic province:
-
- Appalachian basin
Summary:
Pg. 69. Gowanda shale in Chautauqua County; Gowanda beds in Cattaraugus, Allegany, and Steuben Counties [Lake Erie region, western New York]. Of Chemung age. In Cattaraugus County is overlain by unnamed sandstone and underlain Dunkirk shale; in Allegany County is overlain by "Rushford sandstone" and by Canaseraga sandstone (=Dunkirk shale); in Steuben County is overlain by Wellsburg sandstone and underlain by Prattsburg sandstones. [Age is Late Devonian.]
Source: US geologic names lexicon (USGS Bull. 896, p. 845).
- Usage in publication:
-
- Gowanda beds
- Modifications:
-
- Areal extent
- AAPG geologic province:
-
- Appalachian basin
Summary:
Pg. 149-157. Name Gowanda beds replaces Portland (preoccupied). Thickness 500 feet on Cattaraugus Creek around Gowanda [Cattaraugus County, western New York], 250 feet on Lake Erie. Included in Chemung group. The limited fauna of Portage type which Gowanda beds carry on Lake Erie and at Forestville gradually acquires the brachiopod facies of lower Chemung (Cayuta) shale which it has on Caneadea Creek. Underlies Laona sandstone and overlies Dunkirk shale. [Age is Late Devonian.]
[See 1931 and later entries under Chemung group.]
Source: US geologic names lexicon (USGS Bull. 896, p. 845).
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 ([ ]).