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  • Usage in publication:
    • Beaver Basin formation*
  • Modifications:
    • Named
  • Dominant lithology:
    • Till
    • Gravel
    • Sand
    • Silt
Publication:

Richmond, G.M., 1962, The pre-Bull Lake tills in the Wind River Mountains, Wyoming, IN Geological Survey Research 1962; short papers in geology, hydrology, and topography; Articles 120-179: U.S. Geological Survey Professional Paper, 450-D, p. D132-D136.


Summary:

Named for Beaver basin, T26S, R25E, Grand Co, UT, in Paradox basin, and exposures in the basin designated the type area. Has two members, a lower member that bears the Pack Creek soil (new) and an upper member that bears the Castle Creek soil (new). Comprises 10 facies: till; rock glacier; alluvial gravel; alluvial sand and silt; alluvial-fan gravel; slope-wash mantle; talus; solifluction mantles; frost rubble; eolian sand and silt. The facies interfinger. Is younger than Placer Creek formation (new) and older than Gold Basin formation (new). Of late Wisconsin or Pleistocene age.

Source: GNU records (USGS DDS-6; Denver 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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