Origin of Fluorite Mineralisation and Hydrothermal Alteration at the Chandidongri Deposit, Rajnandgaon District, Central India - Evidence from Oxygen and Hydrogen Isotopes
Bibliographic record
Abstract
Abstract Economic mineralization relatable to the early-Proterozoic Dongargarh granite that forms part of a large volcano-plutonic complex of Central India includes the Chandidongri fluorite deposit located on the granite, a few small deposits of uranium in sheared rhyolites and basic rocks in close proximity to the granite, and minor Cu±Pb mineralisation within sheared rhyolites In the fault-controlled fluorite deposit at Chandidongri, the δ18O values of fluonte-beanng quartz lange from 11 4 to 13 8 per mil, whereas δ18O values of quartz from intensely altered granites range from 13 0 to 14 4 per mil The δD values of fluid inclusion waters extracted from vein-quartz, fluorite and quartz from altered granites range from -32 to -52, -38 to -40 and -48 to -60 per mil respectively The δ18O values and measured δD values indicate a dominantly meteoric source for the fluorite and alteration fluids that may have undergone slight mixing with magmatic water
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How this classification was reachedexpand
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 | 0.000 | 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 | 0.000 | 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 teacher head, 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".