Panno et al. 2011, Illinois Sinkhole Plain: Classic Karst Terrain of the Midwestern United States

Samples that cite this reference

Lab number Site Province / State Normalized age δ13C (per mil)
ISGS-1549 13870 ± 170
ISGS-7087 13700 ± 80
ISGS-A3501 17440 ± 70
ISGS-A3522 4970 ± 25 -8.5
ISGS-A3523 5145 ± 30 -7.4
ISGS-A3524 5830 ± 30 -4.6
ISGS-A3525 5655 ± 30 -5.8
ISGS-A3549 13065 ± 45
ISGS-A3550 13355 ± 50
ISGS-A3690 15220 ± 60
ISGS-A3757 4485 ± 20 -7.0