Physical appearance and stratigraphic context consistent across the area (HP tephra is described as powdery pods up to 5 cm thick that repeat verically over a 10 cm interval at station Preece_1999_Gold_Hill_IV).
Tephrochronology of late Cenozoic loess at Fairbanks, central Alaska
Late Pliocene Dawson Cut forest bed and new tephrochronological findings in the Gold Hill Loess, east-central Alaska
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