Frome Preece et al. (2011): 5 cm thick; bubble-wall shards and pumice; in dark brown, deformed organic-rich silt; ~5.5 m above basal gravel and sand; field name 98SJP17. Sample collected by S. Preece, 1998.
A catalogue of late Cenozoic tephra beds in the Klondike Goldfields and adjacent areas, Yukon Territory
Dating Early and Middle (Reid) Pleistocene glaciations in central Yukon by tephrochronology
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