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  • Usage in publication:
    • Chatanika Ash Bed*
  • Modifications:
    • Named
    • Geochronologic dating
  • Dominant lithology:
    • Ash
  • AAPG geologic province:
    • Alaska East-Central region
Publication:

Pewe, T.L., 1975, Quaternary stratigraphic nomenclature in unglaciated central Alaska: U.S. Geological Survey Professional Paper, 862, 32 p.


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 ([ ]).

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