Phanerozoic bedrock geology, Vendom Fiord area, Ellesmere Island, Nunavut
Bibliographic record
Abstract
The Phanerozoic bedrock geology of Vendom Fiord map area (NTS 49D) features unmetamorphosed sedimentary rocks of mostly Lower Cambrian to Upper Devonian and Paleogene ages exposed within 1) the central Ellesmere Fold Belt, 2) an intensely faulted portion of the Arctic Platform, and 3) the an intervening regional synclinorium (Schei Syncline) which can be traced from central Ellesmere Island to Grinnell Peninsula on western Devon Island. The Paleozoic succession thickens westward from a feather edge where the Lower Cambrian lies nonconformably on Paleoproterozic granulites of the Inglefield Mobile belt (1.98 to 1.75 Ga) to a thickness exceeding 10 km under the western map edge. Prominent depositional features of the lower Paleozoic include shelf to basin facies changes involving nine formations of Upper Ordovician to Lower Devonian ages, biostromal carbonate buildups of Silurian age containing migrated hydrocarbons, important unconformities in Pragian and Emsian strata that provide a late Caledonian uplift history for south eastern Ellesmere Island, and Middle to Upper Devonian foreland clastic formations that are the depositional record of the Ellesmerian Orogeny. The Schei Syncline and Central Ellesmere Fold Belt are Devonian-Early Carboniferous tectonic features produced during the Ellesmerian deformation. Subsequent planation has formed a regional angular unconformity with Upper Paleocene to Middle Eocene Eureka Sound Group sediments deposited above this surface and preserved now in numerous widely scattered fault-bounded outliers. These strata are the depositional response to phases of compressive and strike-slip deformation during the Eurekan Orogeny, also related to more distant events including sea floor spreading in Baffin Bay and the plate motions of Greenland. Commercially significant coal resources are exposed in Eocene strata near the south shore of Stenkul Fiord.
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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 | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.006 | 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".