Old Crow tephra: a new Late Pleistocene stratigraphic marker across north-central Alaska and western Yukon Territory
Alaska ; Amérique du Nord ; Arctique ; Canada ; Etats-Unis ; Géographie des régions polaires ; Old Crow tephra ; Pléistocène supérieur ; Quaternaire zones froides ; Stratigraphie ; Téphrochronologie ; Volcanisme ; Yukon Territory
tephra has been recognized in the Koyukuk Basin and Fairbanks region of Alaska, and in the Old Crow Lowlands of the northern Yukon Territory, some 600 km to the east-northeast. The source vent is unknown, but these occurrences, considered in relation