Precise dating of the 686 ± 2 CE Newberry Pumice eruption and insights into 7th Century volcanism from cryptotephra and sulfur isotopes in Greenland ice (dataset)
Bibliographic record
Abstract
Supplementary Data Files associated with the manuscript: Innes, H.M., Hutchison, W., Sigl, M., McConnell, J.R., Chellman, N.J., Jensen, B.J.L., Sliwinski, J. T., and Burke, A. 2026. Precise dating of the 686 ± 2 CE Newberry Pumice eruption and insights into 7th Century volcanism from cryptotephra and sulfur isotopes in Greenland ice. https://doi.org/10.1016/j.quascirev.2026.110036 Contains: .xlsx file: Tunu2013 Greenland ice core continuous sulfate and insoluble particle data across sampled intervals. Major and trace element geochemical data from tephra shards identified Greenland ice core Tunu2013, from eruptions during the 7th Century of the Common Era, analysed by EPMA and LA-ICP-MS. .doc file: Sampled intervals and sulfur isotope data from Greenland Ice core Tunu2013, from eruptions during the 7th Century of the Common Era, analysed by MC-ICP-MS. Similarity coefficient calculation tables for tephra geochemical correlations.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.002 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.002 |
| Scholarly communication | 0.000 | 0.002 |
| Open science | 0.002 | 0.004 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".