Mason, 1992

Samples that cite this reference

Lab number Site Province / State Normalized age δ13C (per mil)
I-649 47DR2 (Heins Creek) WI 200 ± 75 -25.0
I-678 47DR2 (Heins Creek) WI 1230 ± 150 -25.0
WIS-721 47DR80 (Richter) WI
WIS-725 47DR80 (Richter) WI