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United States / MI / Keweenaw County / 20IR30 (Lookout) / M-1275c

Lab number
M-1275c
Material dated
Charcoal
Type of date
Archaeological
Locality
Keweenaw (Isle Royal)
Submitter
T. Bastian
Date uploaded
January 17, 2024
Updater
Wyoming Team
Date updated
December 31, 2020
Measured Age
2800 ± 120
Normalized Age
2800 ± 120
δ13C (per mil)
-25.0
Significance
geoarchaeology; géoarchéologie
Context
pit 56, 3.2-3.4 ft below the highest edge of the mine, deposits representing natural in-filling after abandonment, therefore limiting the age of mine use
Additional information
Radiometric

References