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Map showing publication footprint
  • Usage in publication:
    • Arkwright group
  • Modifications:
    • Original reference
  • AAPG geologic province:
    • Appalachian basin
Publication:

Tesmer, I.H., 1955, Restudy of Upper Devonian (Chautauquan) stratigraphy and paleontology in southwestern New York State: New York State Museum and Science Service Circular, no. 42, 22 p.


Summary:

Pg. 9-19; I.H. Tesmer, 1954, Hobbies, v. 35, no. 2, p. 30, 31. Arkwright group. Succession of black and gray shales with some thin siltstone layers. Thickness 1,450 feet. Comprises Canadaway (lower) and Chadakoin formations; thus includes all rocks from base of Dunkirk shale to top of Ellicott shale. Underlies Conewango group; overlies Seneca group. Age is Late Devonian.
Named from Arkwright Twp., Chautauqua Co., western NY.

Source: US geologic names lexicon (USGS Bull. 1200, p. 135).


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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