Coral content, radiocarbon dating, geochemistry, benthic foraminifera and grain size distribution in sediment cores CE18011_VC1 and RH17002_VC7

DOI

A remotely operated vehicle mounted (ROV) vibrocorer rig acquired the two cores from the Porcupine Bank Canyon (NE Atlantic) and western Porcupine Bank (NE Atlantic) during the RH17002 and CE18011 research cruises. RH17002_VC7 is a 0.81 m ROV-vibrocore and was acquired from a cold-water coral mound summit on lip of the Porcupine Bank Canyon. CE18011_VC1 is a 1.30 m ROV-vibrocore and was acquired from cold-water coral mound summit on the western Porcupine Bank. Coral content and coral clast size were determined using three-dimensional computed tomography. To construct a geochronological framework, mixed benthic foraminifera (Cibicides lobatulus, Cibicides refulgens and Discanomalina coronata), monospecific planktic foraminifera (Globigerina bulloides) and cold-water coral pieces (Madrepora oculata) were subjected to radiometric analysis. Results were standardized using PaleoDataView (Langner and Mulitza, 2019) to allow applicability and consistency across synthesis. Benthic foraminifera assemblages were analysed from both cores. Their abundances were used to infer paleoenvironmental signals between 9.1 to 5.6 ka BP, and used concurrently with coral content percentages derived from computer tomography. The data was collected by identifying and counting benthic foraminifera from the >125 µm fraction of sediment from the cores. Grain size analysis of the siliclastic fraction of the sediment were used to infer changes in hydrodynamic regime (i.e. mean grain size and mean sortable silt size). δ13C and δ18O were determined from planktic foraminifera (Globigerina bulloides) and benthic foraminifera (Cibicidoides pachyderma) to infer watermass variation.

Identifier
DOI https://doi.org/10.1594/PANGAEA.945476
Related Identifier References https://doi.org/10.5281/ZENODO.3699111
Related Identifier References https://doi.org/10.1016/j.margeo.2022.106930
Related Identifier IsDocumentedBy https://doi.org/10.5194/cp-15-2067-2019
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.945476
Provenance
Creator O'Reilly, Luke ORCID logo
Publisher PANGAEA
Publication Year 2022
Funding Reference Horizon 2020 https://doi.org/10.13039/501100007601 Crossref Funder ID 818123 https://doi.org/10.3030/818123 Integrated Assessment of Atlantic Marine Ecosystems in Space and Time; Science Foundation Ireland https://doi.org/10.13039/501100001602 Crossref Funder ID SFI 16/IA/4528 MMMonKey_Pro
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Representation
Resource Type Bundled Publication of Datasets; Collection
Format application/zip
Size 5 datasets
Discipline Earth System Research
Spatial Coverage (-15.013W, 51.983S, -15.000E, 51.989N)