Former Clinton Creek asbestos mine
Bibliographic record
Abstract
The former Clinton Creek Asbestos Mine is located about 100 km northwest of Dawson City in the Yukon. The site lies 9 km upstream of the confluence of Clinton Creek with the Forty Mile River. From 1968 until depletion of economic reserves in 1978, approximately 12 million tonnes of serpentine ore was extracted from the bedrock in three open pits. Over 60 million tonnes of waste rock from the open pits was deposited over the south slope of the Clinton Creek valley at what is referred to as the Clinton Creek waste rock dump. Over the same period of time, about 10 million tonnes of asbestos tailings from the milling operation were deposited over the west slope of the Wolverine Creek valley. Since closure of the asbestos mine, concerns have been raised with respect to the physical conditions of the site, in particular downstream hazards associated with potential channel blockages resulting from landslides of the Clinton Creek waste rock dumps and Wolverine Creek tailings piles. Qualitative assessment of risk scenarios and human and ecological exposure levels associated with the site conditions have been completed. The greatest risk at the site is the potential for loss of life immediately downstream of the mine site in the area potentially inundated by a breach of the waste rock pile, or within the Wolverine Creek valley in the event of a breach of a tailings blockage. Channel stabilisation measures have been undertaken to better manage the outflow of water from Hudgeon Lake but continual creep movements of the waste rock threaten the long term integrity of these measures. Regular inspection, assessment and maintenance of the channel control structures are undertaken. All surface infrastructure has been demolished to remove some of the physical safety hazards. This paper will discuss the performance of the interim mitigation measures and present some of the closure actions that are being considered to provide a more permanent and higher level of protection against the identified risks at the site.
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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 | 0.001 | 0.001 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.044 | 0.006 |
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".