Red-brown tephra that occurs approximately 146 cm below the surface. The tephra has a total thickness of 10 cm, with the upper 5 cm appearing orange-red and the basal 5 cm appearing darker brownish-red. The 1-cm-thick peat underlying this tephra was radiocarbon dated at 3170+/-170 yBP.
Holocene tephrochronology of the Matanuska Valley, Alaska
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