Benthic stable isotopes and XRF element counts of IODP Sites 342-U1408 and 342-U1410
Bibliographic record
Abstract
Contourite drift deposits characterise the middle Eocene sequences of International Ocean Discovery Program (IODP) Site U1408 and Site U1410 (Newfoundland Ridge, North Atlantic, IODP Expedition 342). The onset of contourite deposition occurred at both Sites around 47 Ma, when an order-of-magnitude increase in terrigenous mass accumulation rate resulted in high overall sedimentation rates (>2 cm/kyr) and a sedimentary system sensitive to astronomical insolation forcing. The Expedition science party joined forces to obtain cm-resolution benthic isotope data, as well as X-Ray Fluorescence (XRF) core scans for this unique Eocene sedimentary archive. This dataset contains high-resolution benthic foraminiferal stable isotope records (N = 3424) and X-ray Fluorescence (XRF) derived elemental ratios (N = 9662). These proxy record are presented along a new two-site composite section and a robust stratigraphic framework that acknowledges the fragmentary nature of the individual IODP Sites.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.004 | 0.006 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.043 | 0.021 |
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 source (direct Gemma or distilled Codex), 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".