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Geologic Unit: Eaton
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  • Usage in publication:
    • Eaton sandstone
  • Modifications:
    • Named
  • Dominant lithology:
    • Sandstone
  • AAPG geologic province:
    • Michigan basin
Publication:

Kelly, W.A., 1936, The Pennsylvanian System of Michigan, IN Occasional papers on the geology of Michigan: Michigan Geological Survey Publication, no. 40, pt. 2, p. 149-226., Also issued as Michigan Geol. Survey Geol. Ser., no. 34


Summary:

Eaton sandstone (in newly defined Grand River group) proposed for uppermost sandstones forming bluffs or ledges along valley of Grand River and its tributaries in vicinity of Grand Ledge in northern part of Eaton Co. Beds are post-Saginaw in age, but true stratigraphic relations to Woodville sandstone, Ionia sandstone, or other strata of Grand River group cannot be determined. Overlies Saginaw at type locality of that group. Thickness 50 ft in vicinity of Grand Ledge.

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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