Cut and fill stoping at Selco's South Bay Mine / presented at Fifth Annual District 4 meeting, Flin Flon, Manitoba, September 19, 2980
Bibliographic record
Abstract
Selco Mining Corporation's South Bay Mine was discovered by Questor Surveys on May 10, 1968 with production commencing }larch 3 1971. The zinc-copper silver orebodieCut and fill stoping at Selco's South Bay Mines average 200-300 feet in length and 20-30 feet in width, dip.at varying degrees to the south, and occur along a zone of chlorite alteration at the porphory volcanic contact. As of the end of August 1980 a total of 1,593,340 tons had been milled. Present ore reserves will provide mill feed until June 1981. \nThe mine is serviced by a 2100 foot, 4 compartment _shaft consisting of a service-manway compartment, two skipping compartments one of which is equipped with a skip over cage combination,and a sinking compartment. \nHoisting is carried out with 250 HP Ingersoll Rand PE-1 60" x 48" double drum hoist at a rope speed of 960 fpm. Further information as to equipment specifications is included in Table A in the appendix. \nThe mining operation is completely trackless and a variety of mining methods includin6 longhole, shrinkage, cut and fill using mechanically placed waste rock,and hydraulic cut and fill have be employed. mp at \n-20% provides L.H.D. access as far as the 900 level. Below this level all equipment is captive and is serviced by shops at each level. \nVentilation is supplied at 100,000 cfm at 6" static pressure via the ramp from a 60" Joy Axivane fan situated adjacent the portal. Booster fans at the 900 level supply 75000 cfm to the lower mining levels through a series of ventilation raises.
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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 | 0.000 | 0.000 |
| Science and technology studies | 0.003 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.157 | 0.024 |
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".