Sample collected ~75 cm above river level at Site F (see Jensen and others, 2013), in the river level peat complex. Sampled from a single mm-scale wisp of tephra. Glass morphology is almost entirely tricuspate and bubble-walled shards with some thick-walled pumice. Sample contains glass geochemical populations of several of the lowest tephra beds.
The Palisades is a key reference site for the middle Pleistocene of eastern Beringia: new evidence from paleomagnetics and regional tephrostratigraphy
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