U-series ages and Neodymium isotopic compositions of late Quaternary populations of Desmophyllum dianthus from Orphan Knoll and Flemish Cap, south-eastern Labrador Sea


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.

DOI https://doi.org/10.1594/PANGAEA.949618
Related Identifier IsDocumentedBy https://doi.org/10.1016/j.marchem.2020.103807
Related Identifier IsDocumentedBy https://doi.org/10.1080/08912963.2013.835807
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.949618
Creator Hillaire-Marcel, Claude ORCID logo; Maccali, Jenny ORCID logo; Menabreaz, Lucie; Ghaleb, Bassam; Poirier, André; Edinger, Evan
Publisher PANGAEA
Publication Year 2022
Funding Reference Natural Sciences and Engineering Research Council https://doi.org/10.13039/501100000038 Crossref Funder ID 372557-09 Geology, biogeography and genetic connectivity of deep-sea corals in the Orphan Knoll, Orphan Basin, and Flemish Pass areas; Natural Sciences and Engineering Research Council https://doi.org/10.13039/501100000038 Crossref Funder ID RGPIN-2018-05031 Merging the Arctic paleoceanography into the Earth's global climate/ocean history
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Resource Type Dataset
Format text/tab-separated-values
Size 788 data points
Discipline Earth System Research
Spatial Coverage (-46.194W, 46.334S, -44.549E, 50.555N)