The National Geologic Map Database is migrating to a new infrastructure. We apologize for any service disruptions during this process.

U.S. Geological Survey Home AASG Logo USGS HOME CONTACT USGS SEARCH USGS
National Geologic Map Database
Map showing publication footprint
  • Usage in publication:
    • Slide Creek member*
  • Modifications:
    • Named
  • Dominant lithology:
    • Basalt
  • AAPG geologic province:
    • Blue Mountains province
    • Columbia basin
Publication:

Thayer, T.P., 1957, Some relations of later Tertiary volcanology and structures in eastern Oregon, IN Vulcanologia del Cenozoico; Section 1: International Geological Congress, 20th, Report, Mexico City, 1956, no. 1, p. 231-245.


Summary:

Unit is named for flows in the lower part of Strawberry volcanics (new). Name derived from the valley of Slide Creek 3 mi east of Strawberry Mountain, Grant Co., OR. Described as Columbia River type flow and believed to be [lithologic] equivalent of Columbia River basalt at Picture Gorge. Age is middle Miocene.

Source: GNU records (USGS DDS-6; Menlo 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 21 May 2026 06:08:14 PM MDT