Boszhardt, 1977, 1982, 1989

Samples that cite this reference

Lab number Site Province / State Normalized age δ13C (per mil)
WIS-573 47LC20 (O, Verhead) WI 440 ± 65 -23.5
WIS-601 47LC20 (O, Verhead) WI 465 ± 55 -26.1
Beta-1916 47LC20 (O, Verhead) WI 2130 ± 80