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  • Usage in publication:
    • Ames Knob formation*
  • Modifications:
    • Named
  • Dominant lithology:
    • Limestone
    • Shale
    • Conglomerate
  • AAPG geologic province:
    • New England province
Publication:

Smith, G.O., Bastin, E.S., and Brown, C.W., 1907, Description of the Penobscot Bay quadrangle [Maine]: U.S. Geological Survey Geologic Atlas of the United States Folio, Penobscot Bay folio, no. 149, 14 p.


Summary:

Ames Knob formation named in Penobscot Bay area, Knox Co., ME. Consists of limestones and red shales, with several conglomerate beds and a basal conglomerate member, which is 16 ft thick. Contains Niagara fossils. Thickness 580 ft. Rests on North Haven greenstone. Overlain by volcanic rocks. Age is Silurian.

Source: GNU records (USGS DDS-6; Reston GNULEX).


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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