Publication Date:
2024-06-12
Description:
The data sets include U-series and Neodymium isotope measurements in modern (n = 6) and fossil (n = 24) deep-coral (Desmophyllum dianthus) assemblages raised from the Orphan Knoll and Flemish cap area, southeastern Labrador Sea, during the CCGS Hudson-2010-029 cruise using the tethered Canadian ROPOS ROV, complemented with a single colony from a rock dredge recovery during the CSS Hudson 78-020 expedition. Fossil specimens age clusters are : the mid to late Holocene, the Bølling-Allerød (the single colony), MIS 5c, MIS 7a. Details about the U-series measurements can be found in Maccali et al. (2020). Nd-isotope measurements were reported during the 2015 Goldschmidt Conference by Ménabréaz et al. ( 2015). Low eNd-values point to intervals with a strong imprint of detrital particulate fluxes from the Greenland and Canadian Precambrian basements on the intermediate water mass of the Labrador Sea (~ 1600-2200 m). The more radiogenic end-member (eNd ~ -13.5) corresponds to the modern-like signature of the North-Atlantic Deep Sea Water.
Keywords:
Age, 14C AMS; Age, dated; Age, dated standard error; Age, Thorium corrected; Aragonite; Bølling-Allerød; Calendar age; Calendar age, standard error; calibrated; Comment; deep corals; Desmophyllum dianthus; Dredge; DRG; ELEVATION; Event label; Holocene; HU2010-029-R1335-04; HU2010-029-R1335-13; HU2010-029-R1336-26; HU2010-029-R1336-27; HU2010-029-R1343-02; HU2010-029-R1343-09; HU2010-029-R1343-12; HU2010-029-R1343-16; HU2010-029-R1343-17; HU2010-029-R1343-21; HU2010-029-R1343-22; HU78-020-001; HUD2010-029; HUD2010-029-R1335-13; HUD2010-029-R1335-4; HUD2010-029-R1336-26; HUD2010-029-R1336-27; HUD2010-029-R1343-12; HUD2010-029-R1343-16; HUD2010-029-R1343-17; HUD2010-029-R1343-2; HUD2010-029-R1343-21; HUD2010-029-R1343-22; HUD2010-029-R1343-9; HUD78-020; HUD78-020-001; Hudson; Laboratory code/label; Labrador Sea; LATITUDE; Location; LONGITUDE; marine isotope stage 7a; Neodymium-143/Neodymium-144 ratio; Neodymium-143/Neodymium-144 ratio, standard error; Remote operated platform for oceanography; ROPOS; Sample code/label; Site; Stage; Thorium-230/Uranium-238 activity ratio; Thorium-230/Uranium-238 activity ratio, standard error; Uranium-234/Uranium-238 activity ratio; Uranium-234/Uranium-238 activity ratio, standard error; δ13C, carbonate; δ18O, carbonate; δ234 Uranium (0); δ234 Uranium (0), standard error; ε-Neodymium; ε-Neodymium, standard error
Type:
Dataset
Format:
text/tab-separated-values, 788 data points
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