Spurgeon, 1984, p.c. 1999

Samples that cite this reference

Lab number Site Province / State Normalized age δ13C (per mil)
SFU-405 DhRq-22 (Park Farm) BC 4170 ± 120
GSC-6207 DhRq-22 (Park Farm) BC 4030 ± 80 -26.1
GSC-6209 DhRq-22 (Park Farm) BC 5560 ± 90 -26.5
Beta-80773 DhRq-22 (Park Farm) BC 300 ± 50