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- Lab number
- Beta-252946
- Material dated
- Shell
- Taxa dated
- marine, Macoma nasuta
- Type of date
- Geological
- Locality
- San Francisco
- Date uploaded
- January 15, 2024
- Updater
- Wyoming team
- Date updated
- December 31, 2020
- Normalized Age
- 4330 ± 40
- δ13C (per mil)
- -0.6
- Context
- 350 Mission St., Core A2C1, horizon 6Cg, 640 to 730 cm below basement surface