Upper Neoproterozoic to Lower Devonian stratigraphy of northeast Ellesmere Island
Bibliographic record
Abstract
The thick sedimentary sequence exposed on northeast Ellesmere Island consists of Neoproterozoic to Devonian siliciclastic and carbonate rocks that were deposited on the passive northern margin of Laurentia. Sedimentary packages consist of Neoproterozoic shale and shallow-water carbonate; Lower Cambrian marine to deltaic siliciclastic deposits; Lower Cambrian to Upper Ordovician shallow- marine carbonate and evaporite deposits that formed a platform with a distinct shelf-margin facies; Upper Ordovician to Silurian shallow-marine carbonate deposits that formed a platform with shelf-margin reefs; and basinal, deep-water shale, chert, and carbonate breccia. The margin of the carbonate platform during the Cambrian and Ordovician was stable in its position and formed an escarpment. The Late Ordovician to Silurian carbonate margin stepped landward in response to tectonism and sea-level change. During periods of exposure, carbonate breccias were shed into the basin, especially at the end of the Early Cambrian, and at the Cambrian-Ordovician and Ordovician-Silurian boundaries.
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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 | 0.000 | 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) | 0.005 | 0.001 |
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".