Development and structure of the Kennetcook-Windsor basin, Nova Scotia, Atlantic Canada
Bibliographic record
Abstract
The Kennetcook-Windsor basin is a part of the large composite Maritimes Basin in Atlantic Canada. Subsurface seismic data indicate a very complex basinal history in terms of syn-depositional deformation and superimposition of numerous episodes of fault reactivation in the basin. Faults mapped and correlated at the tops of basement, the Horton Bluff, and the Cheverie formations can be subdivided into six categories. On the basis of interpretation of seismic reflection geometries and fault modeling, at least six episodes of deformation are suggested in the Kennetcook-Windsor basin. Flower structures mapped in the subsurface clearly indicate a strike-slip setting that remained active during the entire history of the basin. Structural collapse features represented by high angle chaotic seismic reflections within the Windsor Group indicate evaporite withdrawal that played a key role in the creation of accommodation space for the Pennsylvanian sediments in the basin. A Two-way-time (TWT) structure map at the top of basement shows tilted fault-blocks stepping down to north and northeast. The TWT maps at the tops of the Horton Bluff and the Cheverie formations show a structural low in the central area and rising in the northeast, west, and south. However, the structural low on the top of the Cheverie Formation is narrower and indicates that the faults in the northeast were inverted more than those mapped on the top of the Horton Bluff Formation. Comparison of the thickness maps of the Horton Bluff and the Cheverie formations indicate an overall thickening in the north and northeast. Episodic dextral strike-slip movement on the basin-bounding fault (Minas Fault) controlled the basement architecture and the development of the basin. Probably oblique movement (SW-NE) on the local subsurface faults caused compartmentalization of the tilted fault-blocks within the Horton and Windsor groups.
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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 | 0.002 | 0.002 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 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".