U.S. Geological Survey Home AASG Logo USGS HOME CONTACT USGS SEARCH USGS
National Geologic Map Database
Map showing publication footprint
  • Usage in publication:
    • New Richmond†
  • Modifications:
    • Abandoned
  • AAPG geologic province:
    • Michigan basin
Publication:

Catacosinos, P.A., and Daniels, P.A., Jr., 1991, Stratigraphy of Middle Proterozoic to Middle Ordovician formations of the Michigan basin, IN Catacosinos, P.A., and Daniels, P.A., Jr., eds., Early sedimentary evolution of the Michigan basin: Geological Society of America Special Paper, 256, p. 53-70.


Summary:

Term Bruggers Formation is abandoned in favor of St. Peter Sandstone, now that sandstone in the Michigan basin has been positively identified as a correlative of the St. Peter of adjacent states. Term New Richmond Sandstone also abandoned as it has been used for identical unit.

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 ([ ]).

Accessibility FOIA Privacy Policies and Notices

USA Gov U.S. Department of the Interior | U.S. Geological Survey
Supported by the National Cooperative Geologic Mapping Program
Page Contact Information: Personnel
Page Last Modified: Thu 04 Apr 2024 03:27:29 PM MDT