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Geologic Unit: Spragueville
Map showing publication footprint
  • Usage in publication:
    • Spragueville Formation*
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Siltstone
    • Limestone
  • AAPG geologic province:
    • New England province
Publication:

Pavlides, Louis, 1966, Meduxnekeag Group and Spragueville Formation of Aroostook County, northeast Maine, IN Cohee, G.V., and West, W.S., eds., Changes in stratigraphic nomenclature by the U.S. Geological Survey, 1965: U.S. Geological Survey Bulletin, 1244-A, p. A52-A60.


Summary:

Pg. A55-A57. Spragueville Formation. Consists chiefly of gray to pale-olive-green calcareous siltstone and silty limestone. Estimated thickness about 4,000 feet. Conformably overlies Carys Mills [Formation] (new) gradationally and underlies Perham Formation in Presque Isle region. Was termed upper member, nubbly limestone, of Aroostook Limestone by White (1943, USGS Bull. 940-E). Aroostook Limestone herein abandoned. Age is Silurian.
Type locality: exposures near community of Spragueville, Aroostook Co., northeastern ME.

Source: US geologic names lexicon (USGS Bull. 1350, p. 715).


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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