Duplicate measurement of osmium isotope ratios and platinum group elements from a clay layer of the Mokawaruppu section

DOI

This dataset contains duplicate measurements of osmium isotope ratios and platinum group element concentrations for a clay layer from the Mokawaruppu section, Nemuro Group, Hokkaido, Japan. This clay layer was previously identified as the Cretaceous-Paleogene boundary layer by Saito et al. (1986). The analyses were performed to assess whether the clay layer represents an impact-derived boundary layer. Osmium isotope ratios and Os concentrations were measured by negative thermal ionization mass spectrometry (N-TIMS; TRITON, Thermo Fisher Scientific) and rhenium and other platinum group concentrations were measured by inductively coupled plasma quadrupole mass spectrometry (ICP-QMS; iCAP Q, ThermoFisher Scientific) at Japan Agency for Marine-Earth Science and Technology (JAMSTEC).

Identifier
DOI https://doi.org/10.1594/PANGAEA.994130
Related Identifier IsSupplementTo https://doi.org/10.1038/s43247-026-03602-z
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.994130
Provenance
Creator Ota, Hayu ORCID logo; Kuroda, Junichiro ORCID logo; Orihashi, Yuji ORCID logo; Schmitz, Mark D ORCID logo; Takashima, Reishi ORCID logo
Publisher PANGAEA
Publication Year 2026
Funding Reference Japan Society for the Promotion of Science https://doi.org/10.13039/501100001691 Crossref Funder ID 17K05674 https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-17K05674/ High resolution age model and paleoenvironmental change for K/Pg boundary; Japan Society for the Promotion of Science https://doi.org/10.13039/501100001691 Crossref Funder ID 18KK0091 https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-18KK0091 Improvement of Cretaceous Geologic Time Scale; Japan Society for the Promotion of Science https://doi.org/10.13039/501100001691 Crossref Funder ID 21H04503 https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-21H04503 Environmental changes during the Latest Cretaceous Mass Extinction Event recorded in the complete K/Pg boundary sequence discovered firstly in East Asia; Japan Society for the Promotion of Science https://doi.org/10.13039/501100001691 Crossref Funder ID 22H01342 https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-23K22613/ The Cretaceous-Paleogene Boundary in the Southern Hemisphere: Osmium isotopic record to fingerprint flood basalt volcanism; Japan Society for the Promotion of Science https://doi.org/10.13039/501100001691 Crossref Funder ID 22K18426 https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-22K18426/ Linkage of the Earth's tipping points and the subseafloor biosphere; Japan Society for the Promotion of Science https://doi.org/10.13039/501100001691 Crossref Funder ID 23H00153 https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-23H00153/ Analysis of internal Earth nitrogen using pupulin nitrogen isotope ratio; Japan Society for the Promotion of Science https://doi.org/10.13039/501100001691 Crossref Funder ID JPJSCCA20250004 https://sites.google.com/view/kochi-jsps-core2core/english?authuser=0 Warm-period Climate Change Research Center with the International Ocean Drilling School [WarmCCR]
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 28 data points
Discipline Earth System Research
Spatial Coverage (143.704 LON, 43.069 LAT); Hokkaido, Japan