Sedimentology and High-Resolution Stratigraphy of the Shaftesbury Formation (Late Albian), NE British Columbia
Bibliographic record
Abstract
The project is integrating outcrop sections with wireline log data from ~500 wells to build a sequence stratigraphic correlat ion grid over an area of about 50,000 km 2 . This proxy chronostratigraphy provides a basis for facies and paleogeographic mapping. Resulting isopach maps will allow the subsidence history to be reconstructed in three dimensions on small time-steps. This 3-D approach will provide a means of differentiating eustatic and tectonic controls on accommodation. The abundance of mudstone in the Shaftesbury Formation makes it an ideal natural laboratory in which to study patterns and mechanisms of mud dispersal on an ancient marine shelf - a topic of intense current interest and debate. In particular, the relative importance of fluid mud transport by storm-driven versus gravity-driven flows will be investigated. The Shaftesbury rocks are strongly cyclical, and contain numerous, widely-traceable erosion surfaces that allow sequences to be defined and mapped. Isopach patterns will provide a proxy record of the shifting loci of contemporaneous thrust activity in the Cordillera. Ultimately, it is hoped that nearshore clastic sequences can be correlated with coeval pelagic successions to investigate the possibility of orbital forcing on sea-level changes as well as oceanic productivity.
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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 | 0.001 | 0.002 |
| 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) | 0.005 | 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".