Evidence of Syn-Sedimentary Tectonism in the Burgess Shale and Other Middle Cambrian Units, British Columbia, Canada
Bibliographic record
Abstract
The thick Cambrian stratigraphic succession of Western Laurentia were deposited along a quasi-active rifted margin, a remnant of the Proterozoic fragmentation of the supercontinent Rodinia. The fossiliferous Burgess Shale (Middle Cambrian) bears evidence of this ancient rift, as do the older Gog and Mt Whyte formations (Early Cambrian), and younger Eldon-Pika Formations and Duchesnay Shale. Shallow buried normal fault-bounded horsts and grabens of the underlying Kicking Horse Rim (KHR) likely played a central role in propagation of seismicity leading to the destabilization of marginal platform and basinal facies. Discovery that both the near-vertical Cathedral and Eldon-Pika escarpments were formed by hydrothermal and tectonic mass wasting processes linked to the KHR (Stewart et al., 1993) is perhaps the most dramatic manifestation of syn-sedimentary tectonism during this dynamic period of the Early Paleozoic. Evidence is presented here for other manifestations of tectonism in the basinal deposits adjacent to the Middle Cambrian carbonate platform escarpments that post-date formation of these submarine cliffs.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.003 | 0.004 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.006 | 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".