- Usage in publication:
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- Chatanika Ash Bed*
- Modifications:
-
- Named
- Geochronologic dating
- Dominant lithology:
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- Ash
- AAPG geologic province:
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- Alaska East-Central region
Summary:
Unit is named the Chatanika Ash Bed. Is [enclosed] within the Goldstream Formation. Consists of White vitric ash. Thickness is 1 cm at type, ranges 1 to 10 cm. At type section a radiocarbon age of 14,760 +/-850 was obtained on a CITELLUS nest 4 m below ash layer, and an age of 14,510 +/-450 was obtained on a CITELLUS coprolites from silt 1 m above ash layer. Age is Pleistocene (Wisconsinan).
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 ([ ]).