2026-10-14 https://api.researchdata.se/oai-pmh

oai:researchdata.se:doi-10-17045-sthlmuni-29098307/0 2025-07-29 subject:ssif:10506 subject:ssif:105 subject:ssif:1 principal:slug:stockholm-university

info:eu-repo/semantics/other http://purl.org/dc/dcmitype/Dataset https://doi.org/10.17045/STHLMUNI.29098307 Supplementary Material for Larsson (2025) From the ashes: a 150th anniversary review of the Askja-1875 tephra https://orcid.org/0000-0002-5106-355X Geochemistry Geokemi Supplementary material to the article "From the ashes: a 150th anniversary review of the Askja-1875 tephra" by S.A. Larsson, published in Dynamica through Stockholm University in 2025 (https://doi.org/10.58051/ns01-jf70). The material is published as a .xlsx spreadsheet file containing the following contents, divided onto separate sheets (also made available as separate .csv and .txt files): Table S1. Compilation of published raw (non-normalised) data from geochemical analyses of glass from the Askja-1875 tephra in the form of major-element oxide compositions provided as weight percentages. Table S2. Normalised data of published Askja-1875 tephra-derived glass-shard major-element oxide compositions. Table S3. Centred log-ratio transformed selection of data of published Askja-1875 tephra-derived glass-shard major-element oxide compositions. Table S4. Results of principal component analysis performed on centred log-ratio transformed selection of data of published Askja-1875 tephra-derived glass-shard major-element oxide compositions. R code. Script used for data treatment and statistical analysis. References. List of references for the articles presenting the published raw data compiled in Table S1. https://creativecommons.org/licenses/by/4.0/ Stockholm University Stockholms universitet 2025-07-29T00:00:00Z