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Sample: ACT-2240

Sample ID: ACT-2240 [1] [2]
Station ID: Eva_Creek
AT Num:
Volcano:
Possible source:
Eruption: Old Crow Tephra
Collector: Muhs, D. R.
Date sampled:
Sample type 1: Tephra Fall
Color:
Final unit:
Text Description: Tephra 2. Old Crow tephra is found within an organic-rich layer. Immediately to the north of this organic-rich layer is what appears to be a sloping channel wall, but the Old Crow tephra is found at approximately the same level, or slightly below the level at which it is found in the organic-rich layer. Possibility that the Old Crow tephra was deposited at about the same time as the Eva Forest Bed. Another possibility is that the pods of Old Crow tephra analyzed were reworked into the forest bed from older deposits that predate the forest bed.
Sample Location:

References Cited

[1] Trace-element geochemistry of individual glass shards of the Old Crow Tephra and the age of the Delta glaciation, central Alaska, 2003

Beget, J. E., and Keskinen, M. J., 2003, Trace-element geochemistry of individual glass shards of the Old Crow Tephra and the age of the Delta glaciation, central Alaska: in Westgate, J. A., (ed.), Special issue dedicated to Troy Pewe, Quaternary Research, v. 60, n. 1, p. 63-69.

[2] Vegetation and paleoclimate of the last interglacial period, central Alaska, 2001

Muhs, D.R., Ager, T.A., and Beget, J., 2001, Vegetation and paleoclimate of the last interglacial period, central Alaska: Quaternary Science Reviews, v. 20, p. 41-61.