Preliminary carbon and oxygen isotope analyses of hydrothermal carbonates from Mississippi Valley-type and REE-F-Ba deposits of the southern Canadian Rocky Mountains - a comparison
Bibliographic record
Abstract
Zinc-lead Mississippi Valley-type (MVT), carbonate-hosted REE-F-Ba and magnesite deposits of the southern Canadian Rocky Mountain Foreland Belt occur along the southwestern edge of the Kicking Horse Rim, a paleo-topographic high that coincides with a carbonate platform-to-basin facies transition along the ancient Paleozoic margin. Mineralization is hosted in dolostone and is typically associated with sparry and saddle dolomite (ferroan dolomite in association with REE-F-Ba). Carbon and oxygen isotopes done on these carbonate phases show differences and similarities. All sparry, saddle and ferroan dolomite associated with mineralization have similar delta-18OVPDB values that are lower than those of their host dolostone. However, their delta-13CVPDB values are different with lower values for dolomites at the REE-F-Ba Rock Canyon Creek deposit than those for the MVT deposits. The depletion in 18O suggests that dolomites associated with mineralization precipitated from or interacted with hydrothermal fluids. The delta-18OVPDB and delta-13CVPDB values of dolomite associated with mineralization at Rock Canyon Creek plot outside the field of primary igneous carbonatites, and lies on the general trend connecting the southeastern British Columbia carbonatite field to the field for unmineralized host carbonates in the same area.
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 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.002 | 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) | 0.001 | 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".