Tamborrino, Leonardo; Wienberg, Claudia (2019): Uranium-series age, isotope concentrations and ratios from L. pertusa fragments from surface sediment samples from the Namibian coral mounds [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.909293
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Abstract:
Uranium-series age, isotope concentrations and ratios from Lophelia pertusa fragments from surface sediment samples collected during the M122 ANNA cruise off Namibia. *Measured 234U/238U activity ratios (δ234Um) are presented as deviation permil (‰) from the equilibrium value. Decay corrected 234U/238U activity ratios (δ234Ui) are calculated from the given ages and with λ234U: 2.8263 x 10-6 yr-1. Agecor Corrected ages, according to Frank et al. (2004) and Wefing et al., (2017). n.d.: not determinable because lower than the analytical blank (<0.003 ng/g). For GeoB20572-4 and 20579-1, two L. pertusa fragments were collected from the bulk sample for dating: ' sample 1; '' sample 2.
Related to:
Tamborrino, Leonardo; Wienberg, Claudia; Titschack, Jürgen; Wintersteller, Paul; Mienis, Furu; Schröder-Ritzrau, Andrea; Freiwald, André; Orejas, Covadonga; Dullo, Wolf-Christian; Haberkern, Julia; Hebbeln, Dierk (2019): Mid-Holocene extinction of cold-water corals on the Namibian shelf steered by the Benguela oxygen minimum zone. Geology, 47(12), 1185-1188, https://doi.org/10.1130/G46672.1
Project(s):
Coverage:
Median Latitude: -20.737235 * Median Longitude: 12.813353 * South-bound Latitude: -20.984000 * West-bound Longitude: 12.641000 * North-bound Latitude: -20.371000 * East-bound Longitude: 12.918000
Date/Time Start: 2016-01-02T06:44:00 * Date/Time End: 2016-01-10T15:48:00
Minimum Elevation: -243.0 m * Maximum Elevation: -160.0 m
Event(s):
GeoB20510-1 (M122_005-1) * Latitude: -20.732000 * Longitude: 12.818000 * Date/Time: 2016-01-02T06:44:00 * Elevation: -230.0 m * Recovery: 15 cm * Campaign: M122 * Basis: Meteor (1986) * Method/Device: Giant box corer (GKG) * Comment: coral rubble
GeoB20516-2 (M122_011-2) * Latitude: -20.763000 * Longitude: 12.831000 * Date/Time: 2016-01-03T08:10:00 * Elevation: -223.0 m * Recovery: 40 cm * Campaign: M122 * Basis: Meteor (1986) * Method/Device: Giant box corer (GKG) * Comment: coral rubble
GeoB20516-3 (M122_011-3) * Latitude: -20.763000 * Longitude: 12.831000 * Date/Time: 2016-01-03T08:54:00 * Elevation: -225.0 m * Recovery: 574 cm * Campaign: M122 * Basis: Meteor (1986) * Method/Device: Gravity corer (GC) * Comment: coral-bearing on-mound core
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Tamborrino, Leonardo | |||
| 2 | Latitude of event | Latitude | Tamborrino, Leonardo | |||
| 3 | Longitude of event | Longitude | Tamborrino, Leonardo | |||
| 4 | Elevation of event | Elevation | m | Tamborrino, Leonardo | ||
| 5 | Laboratory code/label | Lab label | Tamborrino, Leonardo | |||
| 6 | Thorium-232 | 232Th | mg/kg | Tamborrino, Leonardo | ||
| 7 | Thorium-232, standard deviation | 232Th std dev | ± | Tamborrino, Leonardo | ||
| 8 | δ234 Uranium | δ234U | ‰ | Tamborrino, Leonardo | Calculated | d234Um* |
| 9 | δ234 Uranium, standard deviation | δ234U std dev | ± | Tamborrino, Leonardo | abs. | |
| 10 | δ234 Uranium | δ234U | ‰ | Tamborrino, Leonardo | Calculated | d234Ui* |
| 11 | δ234 Uranium, standard deviation | δ234U std dev | ± | Tamborrino, Leonardo | abs. | |
| 12 | Age, dated | Age dated | ka BP | Tamborrino, Leonardo | ka BP | |
| 13 | Age, dated standard deviation | Age dated std dev | ± | Tamborrino, Leonardo | abs. | |
| 14 | Age, dated | Age dated | ka BP | Tamborrino, Leonardo | Corrected | ka BP, corr. |
| 15 | Age, dated standard deviation | Age dated std dev | ± | Tamborrino, Leonardo | abs. |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
204 data points
Data
| 1 Event | 2 Latitude | 3 Longitude | 4 Elevation [m] | 5 Lab label | 6 232Th [mg/kg] | 7 232Th std dev [±] | 8 δ234U [‰] (d234Um*, Calculated) | 9 δ234U std dev [±] (abs.) | 10 δ234U [‰] (d234Ui*, Calculated) | 11 δ234U std dev [±] (abs.) | 12 Age dated [ka BP] (ka BP) | 13 Age dated std dev [±] (abs.) | 14 Age dated [ka BP] (ka BP, corr., Corrected) | 15 Age dated std dev [±] (abs.) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GeoB20544-2 | -20.3710 | 12.6410 | -160 | IUP-7667 | 0.0002693 | 0.0000007 | 145.6 | 0.9 | 147.7 | 0.9 | 5.032 | 0.021 | 5.015 | 0.022 |
| GeoB20545-1 | -20.5030 | 12.6670 | -224 | IUP-9818 | 0.0001785 | 0.0000004 | 145.5 | 0.4 | 147.7 | 0.4 | 5.169 | 0.015 | 5.155 | 0.015 |
| GeoB20571-1 | -20.5030 | 12.6680 | -225 | IUP-7836 | <0.0000030 | 146.8 | 2.2 | 149.2 | 2.2 | 5.653 | 0.040 | 5.653 | 0.040 | |
| GeoB20572-4 | -20.5870 | 12.7320 | -221 | IUP-7838 | <0.0000030 | 147.1 | 2.4 | 149.2 | 2.4 | 4.854 | 0.028 | 4.854 | 0.028 | |
| GeoB20572-4 | -20.5870 | 12.7320 | -221 | IUP-7669 | 0.0006731 | 0.0000012 | 144.5 | 0.7 | 146.6 | 0.7 | 5.032 | 0.019 | 4.986 | 0.030 |
| GeoB20579-1 | -20.5020 | 12.6650 | -223 | IUP-7837 | <0.0000030 | 146.4 | 0.9 | 148.4 | 0.9 | 4.796 | 0.026 | 4.796 | 0.026 | |
| GeoB20579-1 | -20.5020 | 12.6650 | -223 | IUP-9816 | 0.0002641 | 0.0000004 | 146.2 | 0.5 | 148.2 | 0.5 | 4.826 | 0.019 | 4.804 | 0.020 |
| GeoB20539-1 | -20.7500 | 12.8620 | -166 | IUP-7842 | 0.0005767 | 0.0000026 | 145.6 | 0.8 | 148.6 | 0.8 | 7.047 | 0.036 | 7.019 | 0.039 |
| GeoB20548-1 | -20.7500 | 12.8610 | -162 | IUP-9814 | 0.0002646 | 0.0000006 | 148.6 | 0.6 | 150.7 | 0.6 | 5.004 | 0.025 | 4.983 | 0.024 |
| GeoB20549-1 | -20.7500 | 12.8630 | -175 | IUP-7843 | 0.0001755 | 0.0000007 | 144.9 | 1.2 | 147.5 | 1.2 | 6.046 | 0.034 | 6.033 | 0.035 |
| GeoB20510-1 | -20.7320 | 12.8180 | -230 | IUP-7666 | 0.0073430 | 0.0000220 | 147.1 | 1.2 | 149.2 | 1.3 | 5.508 | 0.033 | 4.963 | 0.280 |
| GeoB20516-2 | -20.7630 | 12.8310 | -223 | IUP-7840 | 0.0000038 | 0.0000000 | 146.3 | 0.9 | 148.6 | 0.9 | 5.396 | 0.029 | 5.396 | 0.029 |
| GeoB20516-3 | -20.7630 | 12.8310 | -225 | IUP-7841 | <0.0000030 | 145.3 | 0.6 | 147.5 | 0.6 | 5.291 | 0.029 | 5.291 | 0.029 | |
| GeoB20520-1 | -20.7240 | 12.8310 | -234 | IUP-9817 | 0.0021160 | 0.0000031 | 146.5 | 0.6 | 148.3 | 0.6 | 4.518 | 0.018 | 4.353 | 0.090 |
| GeoB20563-1 | -20.9840 | 12.9180 | -232 | IUP-7845 | 0.0006158 | 0.0000026 | 144.5 | 1.1 | 146.9 | 1.1 | 5.794 | 0.029 | 5.760 | 0.033 |
| GeoB20564-1 | -20.9830 | 12.9170 | -234 | IUP-9815 | 0.0001012 | 0.0000002 | 145.8 | 0.5 | 148.0 | 0.5 | 5.387 | 0.016 | 5.380 | 0.015 |
| GeoB20565-2 | -20.9820 | 12.9160 | -232 | IUP-7846 | 0.0000357 | 0.0000005 | 143.7 | 1.1 | 145.9 | 1.1 | 5.245 | 0.030 | 5.242 | 0.030 |
| GeoB20566-1 | -20.9050 | 12.8970 | -223 | IUP-7844 | <0.0000030 | 145.7 | 1.0 | 147.6 | 1.0 | 4.515 | 0.026 | 4.515 | 0.026 | |
| GeoB20569-1 | -20.9810 | 12.9090 | -243 | IUP-7668 | 0.0000759 | 0.0000002 | 145.3 | 0.8 | 147.5 | 0.9 | 5.133 | 0.023 | 5.126 | 0.024 |