Chukchi Borderland Composite Tectono-Sedimentary Element, Arctic Ocean
Bibliographic record
Abstract
The Chukchi Borderland (ChB) is a prominent bathymetric structure located between the deep-water Chukchi Abyssal Plan and the Canada Basin in the Arctic Ocean. This region represents a block of extended continental crust that was tectonically connected to both Siberia and North America before the formation of the Canada Basin. The interior of the ChB is dissected by normal faults into high-standing blocks and troughs that define the first-order structural elements of the Chukchi Plateau, the Northwind Basin and the Northwind Ridge. The post-Hauterivian (Brookian) strata thin from 16 km in the North Chukchi Basin (south of the ChB) to 4–5 km in the Northwind Basin. The basin fill records a history of alternating periods of tectonic extension and quiescence, as reflected in distinct depositional cycles. In this chapter, we describe the ChB as a composite tectono-sedimentary element (CTSE) using original and published 2D multi-channel seismic reflection profiles, tied to the well-calibrated stratigraphy of the Chukchi Shelf and integrated with potential data. We also provide a brief summary of potential hydrocarbon plays based on analogies with the Arctic Alaska Basin.
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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 | 0.002 | 0.003 |
| 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) | 0.003 | 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".