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Lab number
Beta-95792
Field number
AMS-ETH
Material dated
organic sediment; sédiment organique
Locality
ridge above Cornwall Creek branch of Rock River, 762 m asl, 2-3 km west of Dempster Highway, western foothills of Richardson Mountains, Porcupine drainage, northern Yukon Territory
Map sheet
116 I/16
Submitter
R. Gotthardt
Date submitted
August 4, 0098
Measured Age
7160 ± 60
Normalized Age
7180 ± 60
δ13C (per mil)
-23.8
Significance
Northern Cordilleran; Cordillérien du nord
Context
basal organic lens containing a large blade core in a buried soil above bedrock shatter
Comments
MfVa-9: Artifacts and charcoal were associated with organic lenses within loess. Near the top of the slope, there appeared to be two lenses separated by sterile loess, but they merge into a single lens downslope. Since only small amounts of charcoal were recovered from the upper and lower organic lenses, they were combined to obtain S-2013. Analysis of pollen from the upper organic lens revealed concentrations of arboreal pollen slightly greater than expected from modern vegetation at the site, suggesting the possibility that more favourable conditions (Hypsithermal?) prevailed at the time. Artifacts included bifaces, cores, blades and microblades.

References