Maximum thickness of 3 cm; Tephra bed occurs as small, en echelon pods in 0.3 m of finely bedded clay and silt. This unit is overlain by 0.1 m of fine sand and silt, which is overlain by 0.7 m of layered reddish-brown and black silt. From Preece et al. (2011): rare blocky shards, and rare bubble-wall shards.
Characterization, identity, distribution, and source of late Cenozoic tephra beds in the Klondike District of the Yukon, Canada
Changing ideas on the identity and stratigraphic significance of the Sheep Creek tephra beds in Alaska and the Yukon Territory, northwestern North America
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