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United States / SD / Harding County / 39HN569 (Summit Spring)
Samples
| Lab number | Site | Province / State | Normalized age | δ13C (per mil) |
|---|---|---|---|---|
| Beta-96987 | 39HN569 (Summit Spring) | SD | 680 ± 110 | |
| Beta-98657 | 39HN569 (Summit Spring) | SD | 5360 ± 160 |