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Lab number
S-725
Field number
CMC- 563
Material dated
charcoal; charbon de bois
Locality
Shuswap Lake, South Thompson drainage, Fraser drainage, British Columbia
Map sheet
82 L/14
Date uploaded
February 14, 2020
Measured Age
870 ± 130
Normalized Age
3290 ± 140
δ13C (per mil)
-25.0
Significance
culture?
Context
Zone I, concentration with thin layer of beach gravel, the lowest part of the earliest cultural zone, 2.39-2.7 m N, 0.95-1.1 m E, 1.35-1.40 m BD
Comments
EfQu-10, Blind Bay Rock Shelter: Expectations raised by two projectile points suggestive of Plano affiliation are not supported by the dates. S-725 and S-726, on Zone I, the lowest cultural zone, differ in age more than expected. S-727, from Zone IV, is associated with a small activity area, with a heavy concentration of charcoal containing hundreds of tiny flakes which show signs of heat treatment, or at least of accidental thermal alteration. S-728 was beneath a fallen schist slab in the highest charcoal-stained layer, Zone V.

References