Plio-Pleistocene scanning XRF, stable isotope, and environmental magnetic data from ODP Site 967

DOI

Mediterranean sediments record past changes in North African aridity/humidity changes (so-called 'Green Sahara periods') on orbital timescales. These changes are reflected in the alternating accumulation of organic carbon-rich and aeolian dust enriched sediments, and negative stable oxygen isotope excursions. Here we document these changes over the past 5 million years using scanning x-ray fluorescence (XRF) of ODP Site 967 sediments, measured with a 3rd generation Avaatech XRF core scanner. Element counts were converted into element concentrations for Al [ppm], Si [ppm], S [ppm], K [ppm], Ca [ppm], Ti [ppm], Fe [ppm], Sr [ppm], Zr [ppm] and Ba [ppm], based on a multivariate log-ratio calibration. Stable carbon and oxygen isotope data of the surface-dwelling planktonic foraminifer Globigerinoides ruber (white), sensu stricto at high sampling resolution (typically every 1-3 cm downcore) were measured using a Thermo Fisher Scientific Delta Advantage mass spectrometer coupled to a Kiel IV carbonate device. A bulk sediment isothermal remanence magnetism record (“IRM900@120mT”) was measured using a 2-G Enterprises cryogenic magnetometer. The IRM900@120mT proxy represents isothermal remanence magnetism after imparting a 900 mT induction in a direct current field, followed by alternating field (AF) demagnetization in a peak 120 mT field at high sampling resolution (every 1 cm downcore).

Identifier
DOI https://doi.org/10.1594/PANGAEA.939929
Related Identifier https://doi.org/10.1038/s43247-021-00339-9
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.939929
Provenance
Creator Grant, Katharine M ORCID logo; Amarathunga, Udara ORCID logo; Amies, Jessica ORCID logo; Hu, Pengxiang; Qian, Yao; Penny, Tiah ORCID logo; Rodriguez-Sanz, Laura ORCID logo; Zhao, Xiang ORCID logo; Heslop, David ORCID logo; Liebrand, Diederik ORCID logo; Hennekam, Rick ORCID logo; Westerhold, Thomas ORCID logo; Gilmore, Stewart; Lourens, Lucas Joost ORCID logo; Roberts, Andrew ORCID logo; Rohling, Eelco J ORCID logo
Publisher PANGAEA
Publication Year 2022
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Representation
Language English
Resource Type Bundled Publication of Datasets; Collection
Format application/zip
Size 3 datasets
Discipline Earth System Research
Spatial Coverage (32.725W, 34.068S, 32.726E, 34.071N); Eastern Basin
Temporal Coverage Begin 1995-04-01T23:50:00Z
Temporal Coverage End 1995-04-03T21:15:00Z