Table 2
Apatite 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 | 52 | 31.1–458.2 | 11.2 | 2050 | 11.6 | 2116 | 7.24 | 0 | 83.1 | 6.4 | 44.3 | 7.4 |
| 10SJ06 | 31.0 ± 1 | 102 | 24.2–343.2 | 14.4 | 4191 | 16.0 | 4544 | 7.25 | 0 | 73.8 | 4.1 | 37.6 | 3.2 |
| 10SJ07 | 31.5 ± 1 | 90 | 25.0–328.5 | 14.2 | 3381 | 13.7 | 3258 | 7.25 | 0 | 85.5 | 4.7 | 46.1 | 4.7 |
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 214.63 ± 18.5 and the IRMM540R dosimeter glass. ρs: spontaneous track density; ρi: induced track density; ρd: track density of the fluence monitor.
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