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Geologic Unit: Finch
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  • Usage in publication:
    • Finch Dolostone Member
  • Modifications:
    • Named
  • Dominant lithology:
    • Dolostone
    • Chert
  • AAPG geologic province:
    • New England province
Publication:

Fisher, D.W., 1977, Correlation of the Hadrynian, Cambrian, and Ordovician rocks in New York State: New York State Museum Map and Chart Series, no. 25, 5 sheets, 75 p.


Summary:

Named the Finch Dolostone Member of the Whitehall Formation in NY and VT for Finch Marsh, Washington Co., NY. Consists of medium-gray, thin- to thick-bedded, laminated dolostone with interbedded chert. Dolostone has a fetid odor and contains abundant quartz vugs. Thickness is 12.2 to 22.8 meters. Overlies basal orthoquartzite of the Whitehall Formation and underlies the Warner Hill Limestone Member of the Whitehall. The Finch is of Late Cambrian age.

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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