Publication Date:
2024-02-02
Description:
Uranium-series age, isotope concentrations and ratios from Lophelia pertusa fragments from the gravity core sample GeoB20531-1 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.
Keywords:
Age, dated; Age, dated standard deviation; Aggradation rate; Center for Marine Environmental Sciences; Corrected; dating; DEPTH, sediment/rock; Desmophyllum pertusum; GC; GeoB20531-1; Gravity corer; Laboratory code/label; Lophelia pertusa; M122; M122_026-1; MARUM; Meteor (1986); Namibia; Species; Thorium-232; Thorium-232, standard deviation; Uranium-series; δ234 Uranium; δ234 Uranium, standard deviation
Type:
Dataset
Format:
text/tab-separated-values, 217 data points
