Change in the oxidation rate of stibnite as affected by pyrite in an oxygenated flow-through system
Why this work is in the frame
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Bibliographic record
Abstract
In natural mixed-sulphide assemblages, galvanic interaction between stibnite and pyrite has been shown to increase the dissolution of stibnite, leading to enhanced antimony leaching. The objective of this study was to determine the impact of pyrite on the dissolution rate of stibnite in binary mixtures of the two minerals. Finely ground pyrite and stibnite were mixed in various ratios and the mixtures were subjected to water leaching in flow-through columns for 6 days. An increased oxidation rate of stibnite was noted in the presence of pyrite, with a greater accumulation of oxidized, solid-phase Sb in the systems containing higher pyrite inputs. This study provides evidence that galvanic interaction can enhance the oxidation of stibnite in unconsolidated mixtures of sulphides when stibnite is in close contact with pyrite. In the context of mine wastes, galvanic interaction may thus constitute a mechanism enhancing Sb release but its overall significance remains to be clarified as natural processes may occur to attenuate the aqueous transport of the released Sb.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| 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