Apatite chemistry of orogenic gold mineralised samples from the Fosterville deposit, central Victoria, southeastern Australia
Bibliographic record
Abstract
The chemistry of hydrothermal apatite that form during orogenic gold mineralisation can assist in understanding hydrothermal fluid chemistry and mineralisation processes. Mineralisation at the Fosterville deposit and Lockington East prospect, hosted in Ordovician turbidite sequences of the Castlemaine Group, that lie within the gold rich Bendigo Zone, of south-eastern Australia, is investigated using combined geochemistry and U-Pb geochronology of apatite grains. The chemistry of hydrothermal apatite that form during orogenic gold mineralisation, not only can provide understanding hydrothermal fluid chemistry and mineralisation processes, but can provide chemical criteria for exploration. Laser-ablation inductively-coupled plasma-mass spectrometry (LA-ICP-MS) geochemical data for 262 apatites from four samples k-means clustered into seven groups. A total of 35 elements (excluding Ca) are presented Na, Mg, Al, Si, P, Cl, K, Ti, V, Mn, As, Sr, Y, Zr, La, Ce , Pr, Nd, Fe, Ba, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Hf, Hg, Pb, Th, U. A total of 6 isotopes are presented 204Pb, 206Pb, 207Pb, 208Pb, 232Th, 238U. Additionally QAQC data of reference apatites of 401 and McClure is also presented.
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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 | 0.002 | 0.001 |
| Meta-epidemiology (narrow) | 0.003 | 0.003 |
| Meta-epidemiology (broad) | 0.004 | 0.001 |
| Bibliometrics | 0.000 | 0.002 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.025 | 0.017 |
| Research integrity | 0.002 | 0.003 |
| Insufficient payload (model declined to judge) | 0.007 | 0.001 |
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; both teacher heads agree on what is shown here.
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".