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Table 3
Zircon fission-track data.
| Sample number | Deposition (Ma) | n | Age range (Ma) | ρs (10−5 cm−2) | Ns | ρi (10−5 cm−2) | Ni | ρd (10−5 cm−2) | P(χ2) | Central Age (Ma) | ±1 σ | Minimum age (Ma) | ±1 σ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 10SJ11 | 29.0 ± 1 | 46 | 23.4–394.0 | 60.4 | 3037 | 13.8 | 694 | 3.20 | 0 | 76.5 | 7.5 | 33.4 | 3.7 |
| 10SJ10 | 30.0 ± 1 | 51 | 27.6–398.0 | 73.2 | 2642 | 13.8 | 498 | 3.18 | 0 | 84.4 | 6.9 | 49.0 | 10.0 |
| 09SJ33 | 31.5 ± 1 | 23 | 33.2–239.1 | 86.9 | 2361 | 19.3 | 524 | 3.02 | 0 | 76.3 | 9.3 | 46.5 | 5.3 |
| 09SJ29 | 33.0 ± 1 | 86 | 24.8–184.9 | 95.0 | 8169 | 19.1 | 1641 | 3.04 | 0 | 74.0 | 4.0 | 43.7 | 4.3 |
Note: Samples were counted dry with a BX51 Olympus microscope at 1250× magnification. Central and minimum ages were calculated with the RadialPlotter program of Vermeesch (2009), using a zeta value of 104.39 ± 3.32 and the CN1 dosimeter glass.
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