The National Geologic Map Database is migrating to a new infrastructure. We apologize for any service disruptions during this process.
|
|---|
- Usage in publication:
-
- Beaver Basin formation*
- Modifications:
-
- Named
- Dominant lithology:
-
- Till
- Gravel
- Sand
- Silt
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 ([ ]).