Palcomagnetism and Magnetic Fabric of the Gallen Massive Sulfide Deposit, Rouyn-Noranda, Canada
Bibliographic record
Abstract
Twenty oriented drill cores were collected from the outcrop of the Gallen massive sulfide deposit in the Rouyn-Noranda rea in order to investigate remanent magnetization and an-isotropy of magnetic susceptibility in the deposit. The purpose was to obtain inforrnation on the emplacement of the deposit. Electrical resistivity is high enough to allow 60-Hz alternating fields (AF) to be used for stability testing of the remanent magnetization. For thermal de-magnetization, the heating chamber was first evacuated and then filled with argon. Alternating field demagnetization i a peak field of;30 mT yielded well-grouped stable directions carried by relatively high coercivity magnetite. The mean direction and pole position are: 1;37, +50, and 4;3øW, 2øS, dm=9 ø, dp=6 ø, respectively. The pole position falls on the i,750- to 1,700-m.y. part of the apparent polar wander curve for North America, suggesting that the mag-netization was acquired after the probable Archeau formation of the deposit. The anisotropy of susceptibility (generally <8%) suggests preferential alignment of the long axes of the mag-netite grains almost parallel to the stable remanence direction and its azimuth parallels the local structural trend. These observations suggest hat the magnetic fabric is of Hudsonian age, thus implying Hudsonian deformation of this area of the Archeau Superior province.
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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 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 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".