Coppock 2008

Samples that cite this reference

Lab number Site Province / State Normalized age δ13C (per mil)
Beta-168570 36SN265 (Penn Valley Airport Site 4) PA 1870 ± 70
Beta-187462 36SN265 (Penn Valley Airport Site 4) PA 2430 ± 70
Beta-187463 36SN265 (Penn Valley Airport Site 4) PA 1880 ± 60
Beta-187464 36SN265 (Penn Valley Airport Site 4) PA 1580 ± 60
Beta-187465 36SN265 (Penn Valley Airport Site 4) PA 1650 ± 50