An isotopic and fluid inclusion study of the Rock Canyon Creek, fluorite-REE deposit, southeastern British Columbia.
Bibliographic record
Abstract
The Rock Canyon Creek fluorite-REE deposit is hosted by a Cambro-Ordovician to Devonian carbonate-dominated sedimentary sequence in southeastern British Columbia. Five types of dolomite have been identified: (1) microdolomite; (2) replacement, non-ferroan dolomite; (3) saddle dolomite I, (4) coarse, ferroan dolomite, and (5) saddle dolomite II. Some Ordovician microdolomite falls in the isotopic range of typical Ordovician marine carbonates. Non-ferroan dolomite, which predates mineralization, is more depleted in 18O and 13C than microdolomite. The precipitation of saddle dolomite I, which predates mineralization, is related to veins and vugs. Geochemical and petrographic evidence suggest that saddle dolomite I and non-ferroan dolomite were precipitated from a hot, slightly saline fluid. Pervasive coarse ferroan dolomite occurs in most host rocks to the fluorite-REE mineralization. Saddle dolomite II occurs in open space associated with fluorite and quartz, has similar isotopic compositions to ferroan dolomite and is suggested to have precipitated from the same fluid as that which precipitated ferroan dolomite. (Abstract shortened by UMI.)Dept. of Earth Sciences. Paper copy at Leddy Library: Theses & Major Papers - Basement, West Bldg. / Call Number: Thesis2000 .Z56. Source: Masters Abstracts International, Volume: 39-02, page: 0464. Advisers: I. S. Al-Aasm; I. M. Samson. Thesis (M.Sc.)--University of Windsor (Canada), 2000.
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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 | 0.003 | 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) | 0.002 | 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".