1999a: Geochemical characterization of molybdenum leaching from rock and tailings at the Brenda Minesite, British Columbia
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
The Brenda copper-molybdenum minesite is located near Peachland, British Columbia, and operated from 1967 to 1990. Since 1990, the site has been closed and reclaimed. In 1998, a detailed review and interpretation of all water chemistry on and around the Brenda minesite, involving more than 7,000 analyses since 1970, identified various physical and geochemical control mechanisms on metal concentrations at the minesite. However, the geochemical control on aqueous molybdenum concentrations was not clear, but appeared to be kinetic in nature with factors like time, flow rate, and location having significant effects. This led to additional geochemical testwork, including (1) static tests, like total metals and whole-rock analyses, (2) kinetic tests, including Sobek humidity cells and recirculating leach columns, and (3) geochemical modelling based on recently published thermodynamic data for molybdenum that was added to the U.S. EPA’s MINTEQA2 model. The static tests showed a large range in solid-phase molybdenum levels, reflecting the presence of nearly barren waste rock to low-grade ore in Brenda’s rock piles. Observations based on the cells and columns include (1) the rate of leaching is highly variable among samples and through time, and (2) the apparent maximum “equilibrium ” concentration is also variable among samples. Geochemical modelling
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.
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 | 0.000 | 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 it