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Map showing publication footprint
  • Usage in publication:
    • Cossayuna Group
  • Modifications:
    • Named
  • Dominant lithology:
    • Graywacke
    • Quartzite
    • Shale
    • Slate
    • Conglomerate
  • AAPG geologic province:
    • New England province
Publication:

Fisher, D.W. (editor), 1961, Geologic map of New York: New York State Museum and Science Service Map and Chart Series, no. 5, scale 1:250,000, (1962)


Summary:

Pg. 17, map sheets 3, 4, 5. Cossayuna Group. Basin deposits: graywacke, chloritic quartzite, silty-micaceous shale, purple and green slate, and black shales or green argillites interbedded with limestone conglomerate of slump origin. Thickness about 5,000 feet. Includes (sequence not indicated) West Castleton Formation, "Schodack" Formation, Nassau Formation (with its Stuyvesant Limestone Conglomerate [Member]), Zion Hill Quartzite, Curtiss Mountain Orthoquartzite, Bomoseen Subgraywacke, Mettawee green and purple slates, shales, argillites, and Rensselaer Graywacke. Recognized in New York. Cossayuna is in Washington County. Age is Early Cambrian.

Source: US geologic names lexicon (USGS Bull. 1350, p. 176).


Map showing publication footprint
  • Usage in publication:
    • Cossayuna Group
  • Modifications:
    • Revised
  • AAPG geologic province:
    • New England province
Publication:

Fisher, D.W., 1962, Correlation of the Cambrian rocks in New York State: New York State Museum and Science Service Map and Chart Series, 2, 1 sheet.


Summary:

In Taconian series. Includes, in addition to above named units [in Fisher and others (1961)], Austerlitz Phyllite (new), Everett Schist, Elizaville Shale, Ashley Hill Limestone, Eddy Hill Subgraywacke, and Diamond Rock Quartzite.

Source: US geologic names lexicon (USGS Bull. 1350, p. 176).


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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