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United States / IL / Madison County / 11MS34 (Cahokia Mounds) / ISGS-141

Lab number
ISGS-141
Material dated
seeds
Taxa dated
Zea mays
Type of date
Archaeological
Locality
Madison
Submitter
D.W. Lathrap
Date uploaded
January 15, 2024
Updater
Wyoming Team
Date updated
December 31, 2020
Normalized Age
780 ± 150
δ13C (per mil)
-10.0
Context
Pit (Feature 331) in the Powell Tract.
Additional information
Radiometric
Comments
Fowler adds 420 years to date (1200 BP) to correct for fractionation

References