Warken, Sophie F; Scholz, Denis; Vieten, Rolf-Martin; Winter, Amos; Spötl, Christoph; Miller, Thomas E; Jochum, Klaus Peter; Frank, Norbert; Schröder-Ritzrau, Andrea; Mangini, Augusto (2020): Thorium / uranium dating of stalagmite PR-LA-1 (Cueva Larga, Puerto Rico) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.914993, In: Warken, SF et al. (2020): Stable isotope, trace element and radiometric dating data covering 46.2-15.5 ka BP from stalagmite PR-LA-1 (Cueva Larga, Puerto Rico) [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.915000
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Further details:
Cheng, Hai; Edwards, Ross L; Hoff, John A; Gallup, Christina D; Richards, David A; Asmerom, Yemane (2000): The half-lives of uranium-234 and thorium-230. Chemical Geology, 169(1-2), 17-33, https://doi.org/10.1016/S0009-2541(99)00157-6
Project(s):
Coverage:
Latitude: 18.317000 * Longitude: -66.800000
Minimum DISTANCE: 0.05 cm * Maximum DISTANCE: 18.68 cm
Event(s):
Comment:
Activity ratios were corrected for initial Th assuming an detrital weight ratio 232Th/238U = 0.13 ± 0.04 (corresponding to an activity ratio of the detritus in secular equilibrium of (230Th/232Th)detr = 23.7 ± 7.5), and secular equilibrium of the detritus.
Ages are calculated using the decay constants by Cheng et al. (2000).
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Laboratory code/label | Lab label | Warken, Sophie F | |||
| 2 | Comment | Comment | Warken, Sophie F | |||
| 3 | Sample ID | Sample ID | Warken, Sophie F | |||
| 4 | DISTANCE | Distance | cm | Warken, Sophie F | Geocode – cm from top | |
| 5 | Uranium-238 | 238U | mg/kg | Warken, Sophie F | Uranium-thorium isotope dilution measurement by MC-ICPMS | |
| 6 | Uranium-238, standard deviation | 238U std dev | ± | Warken, Sophie F | Uranium-thorium isotope dilution measurement by MC-ICPMS | Uncertainty, 2σ- range, not including half-life uncertainties |
| 7 | Thorium-232 | 232Th | µg/kg | Warken, Sophie F | Uranium-thorium isotope dilution measurement by MC-ICPMS | |
| 8 | Thorium-232, standard deviation | 232Th std dev | ± | Warken, Sophie F | Uranium-thorium isotope dilution measurement by MC-ICPMS | Uncertainty, 2σ- range, not including half-life uncertainties |
| 9 | Thorium-230/Thorium-232 activity ratio | (230Th/232Th) | Warken, Sophie F | Uranium-thorium isotope dilution measurement by MC-ICPMS | ||
| 10 | Thorium-230/Thorium-232 activity ratio, standard deviation | (230Th/232Th) std dev | ± | Warken, Sophie F | Uranium-thorium isotope dilution measurement by MC-ICPMS | Uncertainty, 2σ- range, not including half-life uncertainties |
| 11 | Uranium-234/Uranium-238 activity ratio | (234U/238U) | Warken, Sophie F | Uranium-thorium isotope dilution measurement by MC-ICPMS | ||
| 12 | Uranium-234/Uranium-238 activity ratio, standard deviation | (234U/238U) std dev | ± | Warken, Sophie F | Uranium-thorium isotope dilution measurement by MC-ICPMS | Uncertainty, 2σ- range, not including half-life uncertainties |
| 13 | Thorium-230/Uranium-238 activity ratio | (230Th/238U) | Warken, Sophie F | Uranium-thorium isotope dilution measurement by MC-ICPMS | ||
| 14 | Thorium-230/Uranium-238 activity ratio, standard deviation | (230Th/238U) std dev | ± | Warken, Sophie F | Uranium-thorium isotope dilution measurement by MC-ICPMS | Uncertainty, 2σ- range, not including half-life uncertainties |
| 15 | Uranium-234/Uranium-238 activity ratio (0) | 234U/238U(0) | Warken, Sophie F | Uranium-thorium isotope dilution measurement by MC-ICPMS | ||
| 16 | Uranium-234/Uranium-238 activity ratio (0), standard deviation | 234U/238U(0) std dev | ± | Warken, Sophie F | Uranium-thorium isotope dilution measurement by MC-ICPMS | Uncertainty, 2σ- range, not including half-life uncertainties |
| 17 | Age, dated | Age dated | ka | Warken, Sophie F | Age, 230Th/U Thorium-Uranium | Uncorrected |
| 18 | Age, dated standard deviation | Age dated std dev | ± | Warken, Sophie F | Age, 230Th/U Thorium-Uranium | Uncertainty, 2σ- range, uncorrected |
| 19 | Age, dated | Age dated | ka | Warken, Sophie F | Corrected, using the decay constants by Cheng et al. (2000) | Corrected |
| 20 | Age, dated standard deviation | Age dated std dev | ± | Warken, Sophie F | Corrected, using the decay constants by Cheng et al. (2000) | Uncertainty, 2σ- range, corrected |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
1289 data points