Geolex — Washakie publications

National Geologic Map Database
Geolex — Significant Publications

Geologic Unit: Washakie

Usage in publication:
- Washakee group*
Modifications:
- Original reference
Dominant lithology:
- Lignite
AAPG geologic province:
- Green River basin

Publication:

Hayden, F.V., 1869, [Third annual] Preliminary field report of the United States Geological Survey of Colorado and New Mexico: U.S. Geological and Geographical Survey of the Territories (Hayden), Annual Report, [3], 155 p., Reprinted 1873, p. 103-251

Summary:

Pg. 190 of 1873 ed. (1869 ed. not available). Washakee group. A series of purely fresh-water beds, with some beds of impure lignite and vast quantities of fossils. The strata are nearly horizontal. I have regarded these beds as separated from the lower Tertiary Fort Union or true lignite group.
[Named from exposures at Washaki station, btw. Creston and Bitter Creek, on Union Pacific RR, in Sweetwater Co., southwestern WY. Comprises the Eocene sediments of Washakie basin (approved spelling).]

Source: US geologic names lexicon (USGS Bull. 896, p. 2279).

Usage in publication:
- Washakie group*
Modifications:
- Areal extent
AAPG geologic province:
- Green River basin

Publication:

Hayden, F.V., 1871, [Fourth annual] Preliminary report of the United States Geological Survey of Wyoming and portions of contiguous Territories (being a second annual report of progress): U.S. Geological and Geographical Survey of the Territories (Hayden), Annual Report, [4], 511 p.

Summary:

Pg. 71-73. I am now inclined to believe Washakie group is either an extension eastward of Bridger group or synchronous with it. [Age is middle and late(?) Eocene.]

Source: US geologic names lexicon (USGS Bull. 896, p. 2279).

Usage in publication:
- Washakie group*
Modifications:
- Areal extent
AAPG geologic province:
- Green River basin

Publication:

Meek, F.B., 1873, Preliminary paleontological report, consisting of lists and descriptions of fossils, with remarks on the ages of the rocks in which they were found, etc., IN Hayden, F.V., Sixth annual report of the United States Geological Survey of the Territories, embracing portions of Montana, Idaho, Wyoming, and Utah, being a report of progress of the explorations for the year 1872; Part II, Special reports on geology and paleontology: U.S. Geological and Geographical Survey of the Territories (Hayden), Annual Report, 6, p. 429-518.

Summary:

Pg. 455-462. Washakie group (Tertiary) overlies Bitter Creek group and underlies Green River group.

Source: US geologic names lexicon (USGS Bull. 896, p. 2279).

Usage in publication:
- Washakie group*
Modifications:
- Areal extent
AAPG geologic province:
- Green River basin

Publication:

Hayden, F.V., 1877, Notes on some artesian borings along the line of the Union Pacific Railroad in Wyoming Territory: U.S. Geological and Geographical Survey of the Territories (Hayden), Bulletin, 3, no. 1, art. 12, p. 181-185.

Summary:

Washakie group. Eastern limit of group is near Creston, extending to point just west of Bitter Creek Station. Exposures consists of soft clays and sands of various shades of brown and yellow, with here and there a hard sandstone; in several places beds of impure lignite occur. Is probably same as Vermilion Creek of King and Wahsatch group of Hayden. [Now known to be much younger than Wasatch group.]

Source: US geologic names lexicon (USGS Bull. 896, p. 2279).

Usage in publication:
- [Washakie group*]
Modifications:
- Not used
AAPG geologic province:
- Green River basin

Publication:

King, Clarence, 1878, Systematic geology, IN Report of the Geological Exploration of the Fortieth Parallel made by order of the Secretary of War according to acts of Congress of March 2,1867, and March 3, 1869, under the direction of Brigadier and Brevet Major General A.A. Humphreys, Chief of Engineers, USA: Washington, D.C., U.S. Geological Exploration of the Fortieth Parallel (King), v. 1, 803 p.

Summary:

Pg. 394. Bridger group was deposited in lake which is here named Washakie Lake.

Source: US geologic names lexicon (USGS Bull. 896, p. 2279).

Usage in publication:
- Washakie formation*
Modifications:
- Overview
AAPG geologic province:
- Green River basin

Publication:

Wilmarth, M.G., 1936, [Selected Geologic Names Committee remarks (ca. 1910-1937) on Cenozoic rocks and sediment of the western U.S.], IN Wilmarth, M.G., 1938, Lexicon of geologic names of the United States (including Alaska): U.S. Geological Survey Bulletin, 896, pts. 1-2, 2396 p.

Summary:

See also Walter Granger and W.J. Sinclair, 1909 (Amer. Mus. Nat. Hist. Bull., v. 26, art. 3 and art. 4, p. 17-27). [Available online through the Amer. Mus. Nat. Hist.: http://hdl.handle.net/2246/714.]
H.F. Osborn, 1909 (USGS Bull. 361). Typical Bridger formation of Bridger basin, Wyoming, contains some earlier deposits than Bridger formation of Washakie basin.
Now (ca. 1936) Washakie considered essentially same as Bridger formation. †Washakie formation abandoned. (See USGS Bull. 720, 1920, by A.R. Schultz.)
Named from exposures at Washaki station, btw. Creston and Bitter Creek, on Union Pacific RR, in Sweetwater Co., southwestern WY. Comprises the Eocene sediments of Washakie basin (approved spelling).

Source: US geologic names lexicon (USGS Bull. 896, p. 2279).

Usage in publication:
- Washakie formation
Modifications:
- Overview
AAPG geologic province:
- Green River basin

Publication:

Wood, H.E., II, Chaney, R.W., and and others, 1941, Nomenclature and correlation of the North American continental Tertiary: Geological Society of America Bulletin, v. 52, no. 1, 48 p.

Summary:

Pg. 36, pl. 1. Washakie formation. Age is [middle Eocene]; late Bridgerian and early Uintan.

Source: US geologic names lexicon (USGS Bull. 1200, p. 4140).

Usage in publication:
- Washakie formation
Modifications:
- Reinstated
AAPG geologic province:
- Green River basin

Publication:

Morris, W.J., 1955, Eocene stratigraphy of the Washakie basin, Wyoming and Colorado, Part 1; A new species of anaptomorphid, Part 2 [abs.]: Dissertation Abstracts, v. 15, no. 3, p. 394.

Summary:

Washakie formation. Reinstated and applied to Eocene (Bridgerian and Uintan) strata lying above the Green River formation in Washakie basin, southwestern Wyoming. [Not adopted by the USGS.]

Source: US geologic names lexicon (USGS Bull. 1200, p. 4140).

Usage in publication:
- Washakie Formation*
Modifications:
- Reinstated
- Revised
- Adopted
AAPG geologic province:
- Green River basin

Publication:

Roehler, H.W., 1973, Stratigraphy of the Washakie Formation in the Washakie basin, Wyoming: U.S. Geological Survey Bulletin, 1369, p. 1-40.

Summary:

Washakie Formation. Reintroduced into Washakie basin, southwestern Wyoming, as defined by Hayden (1869). Its rocks formerly included in Bridger and Uinta Formations, now restricted from use in this basin. Washakie divided into (ascending): Kinney Rim and Adobe Town Members (both new). Age is middle and late Eocene.

Source: Changes in stratigraphic nomenclature, 1973 (USGS Bull. 1395-A, p. A46-A47).

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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