XRD and planktonic foraminifera abundance and isotope data for core LO09-18 spanning MIS3

DOI

Multiproxy data from core LO09-18 from the Reykjanes Ridge. Calcite content and quartz/plagioclase measured using XRD. The quartz/plagioclase ratio of North Atlantic sediments reflects the varying contribution of continental derived quartz versus that of basaltic plagioclase and can be used as a proxy for the contribution of ice-rafted detritus. Details about the measurements and interpretation can be found in https://doi.org/10.1016/S0025-3227(02)00592-3 and https://doi.org/10.1016/S0012-821X(03)00675-7.Stable carbon and oxygen isotope ratios were measured on at least three aliquots of seven shells of N. pachyderma >150 µm using a Finnigan MAT 253 coupled to a Kiel IV device. Reproducibility of an external standard (NBS19) amounted to 0.05 ‰ and 0.03 ‰ (1 s.d.) for δ18O and δ13C, respectively.Foraminiferal census counts of core LO09-18 were performed on the >150 µm fraction. The assemblage data were used to derive summer sea surface temperatures using weighted averaging partial least squared regression (WA-PLS) (https://doi.org/10.1007/BF00028046) and the training set of https://doi.org/10.1016/j.quascirev.2004.07.014. The modern temperature values for 10 m water depth during summer (July, August, September) for the calibration dataset were taken from the World Ocean Atlas version 2 (WOA, 1998).Two age models are presented. The first is based on radiocarbon ages of Neogloborquadrina pachyderma. The second is a refinement of this age model and is also based on tuning the IRD (quartz/plagioclase) time series to the oxygen isotope time series of NGRIP.

Identifier
DOI https://doi.org/10.1594/PANGAEA.971425
Related Identifier References https://doi.org/10.1016/j.quascirev.2010.03.014
Related Identifier References https://doi.org/10.1016/S0025-3227(02)00592-3
Related Identifier References https://doi.org/10.1016/S0012-821X(03)00675-7
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.971425
Provenance
Creator Jonkers, Lukas ORCID logo
Publisher PANGAEA
Publication Year 2024
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Representation
Resource Type Dataset
Format text/tab-separated-values
Size 1137 data points
Discipline Earth System Research
Spatial Coverage (-30.682 LON, 58.967 LAT)