Lomitschka, Michael; Frank, Norbert; Mangini, Augusto (1997): (Table 2) Uranium and thorium isotopic composition, activity ratios and ages of bivalvia shells in sediment core GIK14350, northern Germany [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.785452, Supplement to: Lomitschka, M et al. (1997): Untersuchungen zur Th/U-Datierung eemzeitlicher Muscheln aus Schleswig-Holstein = U-Th dating of eemian bivalves from Schleswig-Holstein. Meyniana, 49, 85-102, https://doi.org/10.2312/meyniana.1997.49.85
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Abstract:
A new chemical procedure for cleaning marine carbonates was applied to remove detritus as well as metaloxide contaminations of marine shells from Eemian deposits and adjoining succession of a sediment core from Dagebüll, Schleswig- Holstein. Hence, one can significantly reduce the contamination with detrital uranium and thorium. Thermal ionisation mass spectrometry was applied to determine the uranium and thorium activities used for 230Th/U dating of these shells. At least ten samples of marine bivalves of five different core sections were analysed. Samples located below a five meter thick clay layer at 19-24 m yielded an average age of 132±18 ka. Shells located above the clays at 15-20 m depth were strongly influenced by percolating groundwaters of an open system. Therefore, a reliable dating of these samples was not possible.
Coverage:
Latitude: 54.700000 * Longitude: 8.753000
Date/Time Start: 1994-09-19T09:15:00 * Date/Time End: 1994-09-19T09:15:00
Minimum DEPTH, sediment/rock: 15.160 m * Maximum DEPTH, sediment/rock: 28.500 m
Event(s):
GIK14350-1 (DA-1) * Latitude: 54.700000 * Longitude: 8.753000 * Date/Time: 1994-09-19T09:15:00 * Elevation: 1.9 m * Penetration: 30.5 m * Recovery: 30.37 m * Location: Hauke-Haien-Koog, Dagebüll, Schleswig-Holstein, Germany * Campaign: GIK-cruise * Method/Device: Drilling/drill rig (DRILL) * Comment: Surface silty clay, bottom coarse sand, gravel and cobblesTopographic Map: TK 25 No. 1318/4, Coordinates: R- 3484225 H- 6063290
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Laboratory number | Lab. numb | # | Lomitschka, Michael | ||
| 2 | Sample ID | Sample ID | Lomitschka, Michael | |||
| 3 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 4 | Depth, top/min | Depth top | m | Lomitschka, Michael | ||
| 5 | Depth, bottom/max | Depth bot | m | Lomitschka, Michael | ||
| 6 | Sample mass | Samp m | g | Lomitschka, Michael | Einwaage | |
| 7 | Sample mass | Samp m | g | Lomitschka, Michael | 236U | |
| 8 | Sample mass | Samp m | g | Lomitschka, Michael | 229Th | |
| 9 | Uranium-234/Uranium-236 ratio | 234U/236U | Lomitschka, Michael | Thermal Ionization Mass Spectrometry (TIMS) | ||
| 10 | Error, relative | Error r | % | Lomitschka, Michael | Thermal Ionization Mass Spectrometry (TIMS) | 234U/236U |
| 11 | Uranium-235/Uranium-236 ratio | 235U/236U | Lomitschka, Michael | Thermal Ionization Mass Spectrometry (TIMS) | ||
| 12 | Error, relative | Error r | % | Lomitschka, Michael | Thermal Ionization Mass Spectrometry (TIMS) | 235U/236U |
| 13 | Uranium-238/Uranium-236 ratio | 238U/236U | Lomitschka, Michael | Thermal Ionization Mass Spectrometry (TIMS) | ||
| 14 | Error, relative | Error r | % | Lomitschka, Michael | Thermal Ionization Mass Spectrometry (TIMS) | 238U/236U |
| 15 | Uranium-234/Uranium-238 activity ratio | (234U/238U) | Lomitschka, Michael | Thermal Ionization Mass Spectrometry (TIMS) | ||
| 16 | Error, absolute | Error a | ± | Lomitschka, Michael | Thermal Ionization Mass Spectrometry (TIMS) | 234U/238U |
| 17 | Uranium-234/Uranium-238 activity ratio | (234U/238U) | Lomitschka, Michael | |||
| 18 | Uranium-234/Uranium-238 activity ratio, error, absolute | (234U/238U) e | ± | Lomitschka, Michael | ||
| 19 | Uranium-238 | 238U | mg/kg | Lomitschka, Michael | Thermal Ionization Mass Spectrometry (TIMS) | |
| 20 | Error, absolute | Error a | ± | Lomitschka, Michael | Thermal Ionization Mass Spectrometry (TIMS) | 238U in mg/kg |
| 21 | Uranium-238 | 238U | dpm/g | Lomitschka, Michael | Thermal Ionization Mass Spectrometry (TIMS) | |
| 22 | Error, absolute | Error a | ± | Lomitschka, Michael | Thermal Ionization Mass Spectrometry (TIMS) | 238U in dpm/g |
| 23 | Thorium-229/Thorium-230 ratio | 229Th/230Th | Lomitschka, Michael | Thermal Ionization Mass Spectrometry (TIMS) | ||
| 24 | Error, relative | Error r | % | Lomitschka, Michael | Thermal Ionization Mass Spectrometry (TIMS) | 229Th/230Th |
| 25 | Thorium-229/Thorium-232 ratio | 229Th/232Th | Lomitschka, Michael | Thermal Ionization Mass Spectrometry (TIMS) | ||
| 26 | Error, relative | Error r | % | Lomitschka, Michael | Thermal Ionization Mass Spectrometry (TIMS) | 229Th/232Th |
| 27 | Thorium-230/Thorium-232 ratio | 230Th/232Th | Lomitschka, Michael | Thermal Ionization Mass Spectrometry (TIMS) | ||
| 28 | Error, relative | Error r | % | Lomitschka, Michael | Thermal Ionization Mass Spectrometry (TIMS) | 230Th/232Th |
| 29 | Thorium-232 | 232Th | mg/kg | Lomitschka, Michael | Thermal Ionization Mass Spectrometry (TIMS) | |
| 30 | Thorium-232, standard deviation | 232Th std dev | ± | Lomitschka, Michael | Thermal Ionization Mass Spectrometry (TIMS) | |
| 31 | Thorium-232 | 232Th | dpm/g | Lomitschka, Michael | Thermal Ionization Mass Spectrometry (TIMS) | |
| 32 | Error, absolute | Error a | ± | Lomitschka, Michael | Thermal Ionization Mass Spectrometry (TIMS) | 232Th in dpm/g |
| 33 | Thorium-230 | 230Th | ng/kg | Lomitschka, Michael | Thermal Ionization Mass Spectrometry (TIMS) | |
| 34 | Thorium-230, standard deviation | 230Th std dev | ± | Lomitschka, Michael | Thermal Ionization Mass Spectrometry (TIMS) | |
| 35 | Thorium-230 | 230Th | dpm/g | Lomitschka, Michael | Thermal Ionization Mass Spectrometry (TIMS) | |
| 36 | Error, absolute | Error a | ± | Lomitschka, Michael | Thermal Ionization Mass Spectrometry (TIMS) | 230Th in dpm/g |
| 37 | Thorium-230/Uranium-238 activity ratio | (230Th/238U) | Lomitschka, Michael | |||
| 38 | Thorium-230/Uranium-238 activity ratio, error, relative | (230Th/238U) e rel | % | Lomitschka, Michael | ||
| 39 | Age, dated | Age dated | ka | Lomitschka, Michael | Age, 230Th/U Thorium-Uranium | uncorrected |
| 40 | Age, dated standard deviation | Age dated std dev | ± | Lomitschka, Michael | Age, 230Th/U Thorium-Uranium |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
390 data points