Table 2.
U-Th ages for Ghost City carbonate samples
| Corrected U-Th age (kyr) | Initial δ234U (‰) | |
| Sample | ± 2σ | ± 2σ |
| S1 | 195 ± 11 | 183 ± 10 |
| S2 | 110 ± 0.9 | 150 ± 1 |
| S3 | 65 ± 11 | 170 ± 1 |
| S4 | 46 ± 0.3 | 129 ± 1 |
U-Th ages for Ghost City carbonate samples
| Corrected U-Th age (kyr) | Initial δ234U (‰) | |
| Sample | ± 2σ | ± 2σ |
| S1 | 195 ± 11 | 183 ± 10 |
| S2 | 110 ± 0.9 | 150 ± 1 |
| S3 | 65 ± 11 | 170 ± 1 |
| S4 | 46 ± 0.3 | 129 ± 1 |