Primary geochemical haloes study of the possibly Carlin-like Dashui gold deposit for gold exploration in southern Gansu Province, central China
Bibliographic record
Abstract
To increase the reserves of the possibly Carlin-like Dashui gold deposit in Maqu county, Gansu Province, central China, exploration techniques to detect mineralization in the subsurface of the mining district are required. Orebodies in the Dashui deposit are usually controlled by structures closely associated with the Ge'erkuohe granitoid. Samples collected from the deposit area indicate that the mineralization is primarily associated with the indicator elements, Au-Ag-As-Hg-Te-Sb, and less so with the indicator elements, K 2 O-Rb-F-Ba. The supra- and/or near-ore haloes are characterized by an As-Sb-Hg-Te-Au-Ag association and sub-ore haloes by a W-Mo-Bi-Co-Sc-Ni-V-Cd association. The primary geochemical haloes of the two main orebodies show that they were formed by up to three hydrothermal events. These results indicated that the two orebodies may extend downward to great depths, as was later confirmed by drilling down to depths of c. 3500–3400 m.
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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 | 0.002 | 0.001 |
| Science and technology studies | 0.001 | 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 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".