Only found at Site A of Chester Bluff. The GI tephra is semi-continuous across Site A, forming pink pods up to 10 cm thick and 30 cm long, and reworked with up to 60 cm of vertical relief. GI is rarely associated with an organic-rich silt unit, comprising a reddish-brown organic layer interbedded with calcareous gray silt and woody lenses up to 2 cm thick. More commonly GI is reworked within deep-red loess that may be a weathered horizon (Bw). Low vesicular pumice, bubble-walled and tri-cuspate shards. Contains brown glass.
An extensive middle to late Pleistocene tephrochronologic record from east-central Alaska
Tephrochronology of middle to late Pleistocene loess in east-central Alaska
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