Hohman-Caine and Syms 2012:43

Samples that cite this reference

Lab number Site Province / State Normalized age δ13C (per mil)
Beta-116989 21CA28 (Shingobee Island) MN 4090 ± 40 -26.5
Beta-127963 21CA28 (Shingobee Island) MN 4400 ± 40 -25.2