Basin-scale distribution of authigenic clay minerals in the Late Maastrichtian-Early Paleocene fluvial strata of the Alberta foredeep: implications for burial depth
Bibliographic record
Abstract
Abstract The Late Maastrichtian to Early Paleocene fluvial strata of the Scollard, Coalspur, and Willow Creek formations in the Alberta foredeep contain complex and variably abundant authigenic clay mineral assemblages. The authigenic clay minerals in the Scollard sandstones consist mainly of kaolinite and smectite, whereas the Coalspur and the Willow Creek sandstones carry chlorite, chlorite-smectite, dickite, illite, and illite-smectite, with subordinate smectite and kaolinite. The diversity in the distribution of the authigenic clay minerals in the region is not random, but follows basin-scale trends that reflect the burial depth history of these strata. The general absence of dickite, coupled with limited conversion of smectite into illite in the Scollard sandstones, suggests crystallization at depth less than 1.5 km. In contrast, the occurrence of blocky dickite, fibrous illite and chlorite in the Coalspur and Willow Creek sandstones, coupled with albitized feldspars and quartz cement, suggests that sandstones underwent a maximum burial depth greater than 3 km.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 teacher head, 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".