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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. 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.
Keyword(s):
dating; Lophelia pertusa; Namibia; Uranium-series
Supplement 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
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):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEventTamborrino, Leonardo
2Latitude of eventLatitudeTamborrino, Leonardo
3Longitude of eventLongitudeTamborrino, Leonardo
4Elevation of eventElevationmTamborrino, Leonardo
5Laboratory code/labelLab labelTamborrino, Leonardo
6Thorium 232232Thmg/kgTamborrino, Leonardo
7Thorium 232, standard deviation232Th std dev±Tamborrino, Leonardo
8δ234 Uraniumδ234UTamborrino, LeonardoCalculatedd234Um*
9δ234 Uranium, standard deviationδ234U std dev±Tamborrino, Leonardoabs.
10δ234 Uraniumδ234UTamborrino, LeonardoCalculatedd234Ui*
11δ234 Uranium, standard deviationδ234U std dev±Tamborrino, Leonardoabs.
12Age, datedAge datedkaTamborrino, Leonardoka BP
13Age, dated standard deviationAge dated std dev±Tamborrino, Leonardoabs.
14Age, datedAge datedkaTamborrino, LeonardoCorrectedka BP, corr.
15Age, dated standard deviationAge dated std dev±Tamborrino, Leonardoabs.
Size:
204 data points

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