Scanning XRF and environmental magnetic data across the Miocene-Pliocene boundary from ODP Site 967 (Eastern Mediterranean)

DOI

The Mediterranean was partially desiccated as the Atlantic-Gibraltar gateway was closed ~6 million years (Ma) ago. The gateway collapsed at ~5.33 Ma (Miocene-Pliocene boundary), resulting in a catastrophic flood which refilled the basin within 2 years. Here we use scanning x-Ray fluorescence (XRF) and anhysteretic remanent magnetization (ARM) data from ODP Site 967 (eastern Mediterranean) to analyze the nature of sediment deposition across the flooding event (5.35-5.12 Ma). Scanning XRF was measured with a 3rd generation Avaatech XRF core scanner. Element 'counts' for the entire interval were converted into element concentrations by multivariate log-ratio calibration, using new wavelength dispersive (WD)-XRF reference element concentrations. XRF data (Ba/Ti filter) was used to generate the chronology, by tuning Ba/Ti peaks to insolation maxima (precession minima). ODP967 U-channel samples were sliced at 1-cm intervals into discrete non-magnetic 2×2×2 cm plastic cubes and measured for ARM on a 2-G Enterprises cryogenic magnetometer.

Identifier
DOI https://doi.pangaea.de/10.1594/PANGAEA.945975
Related Identifier IsSupplementTo https://doi.org/10.1038/s41561-022-00998-z
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.945975
Provenance
Creator Amarathunga, Udara ORCID logo; Hogg, Andrew McC; Rohling, Eelco J ORCID logo; Roberts, Andrew ORCID logo; Grant, Katharine M ORCID logo; Heslop, David ORCID logo; Hu, Pengxiang; Liebrand, Diederik ORCID logo; Westerhold, Thomas ORCID logo; Zhao, Xiang ORCID logo; Gilmore, Stewart
Publisher PANGAEA
Publication Year 2024
Rights Creative Commons Attribution 4.0 International; Data access is restricted (moratorium, sensitive data, license constraints); https://creativecommons.org/licenses/by/4.0/
OpenAccess false
Representation
Resource Type Bundled Publication of Datasets; Collection
Format application/zip
Size 3 datasets
Discipline Earth System Research
Spatial Coverage (32.726 LON, 34.071 LAT)
Temporal Coverage Begin 1995-04-03T00:40:00Z
Temporal Coverage End 1995-04-03T11:50:00Z