U.S. Geological Survey Home AASG Logo USGS HOME CONTACT USGS SEARCH USGS
National Geologic Map Database
Geologic Units: Winslow
Map showing publication footprint
  • Usage in publication:
    • Winslow shales
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Shale
  • AAPG geologic province:
    • Black Mesa basin
Publication:

Keyes, C.R., 1922, Framework of Arizona geology: Pan-American Geologist, v. 38, no. 3, p. 231-252., See also "Deliminations of sundry Arizona terranes," Pan-Amer. Geol., v. 38, no. 4, p. 335-339, 1922


Summary:

Pg. 250, 339. Winslow shales. Name is given to 3rd shale bed of Ward's Moenkopian series, exposed in Rio Chiquito Colorado Valley, at mouth of Rio Puerco, Navajo and Coconino Counties, northeastern Arizona. Thickness 200 feet.
Origin of name not stated. Mouth of Rio Puerco is in Navajo Co., near Holbrook, a considerable distance east of Winslow, AZ.

Source: US geologic names lexicon (USGS Bull. 896, p. 2354).


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: Wed 12 Mar 2025 04:09:41 PM MDT