Late Pennsylvanian-Early Permian Stratigraphy, Sedimentology and Paleoceanography of the Sverdrup Basin, NW Ellesmere Island, Arctic Canada
Bibliographic record
Abstract
The Pennsylvanian-Early Permian carbonate succession of the Sverdrup Basin was studied in Otto Fiord, northwest Ellesmere Island. Seven sections containing shelf carbonates and slope mudrocks and chert were analyzed. The Gzhelian-Kungurian sequence stratigraphy of the basin was revisited based on microfacies analysis and field observations performed in these sections. Two new unconformity-bounded T-R sequences were defined: 1) Sakmarian: composed of the Raanes and contemporaneous Hare Fiord formations; and 2) Artinskian: formed by the Trappers Cove and the bulk of the Great Bear Cape formations. Furthermore, the warm- to cool-water transition in carbonate sedimentation in the basin was analyzed. Based on microfacies analysis of samples from the Nansen and Raanes formations the origin and timing of this shift in sedimentation was discussed. Global warming-enhanced upwelling in Panthalassa is here suggested to be the trigger for this transition. This global warming marks the end of the Late Palaeozoic Ice Age.
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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 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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 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".