Donohue pers comm 1994

Samples that cite this reference

Lab number Site Province / State Normalized age δ13C (per mil)
Beta-54721 39FA1145 SD 1080 ± 70
Beta-54722 39FA1145 SD 1550 ± 70
Beta-54723 39CU1145 SD 3890 ± 80
Beta-54724 39CU1145 SD 3990 ± 80