U/Pb, Re/Os, and Ar/Ar dating of the South Mountain Batholith and its mineral deposits
Bibliographic record
Abstract
The peraluminous South Mountain Batholith (SMB) of Nova Scotia ranges in composition from least differentiated granodiorite and monzogranite to most differentiated leucomonzogranite and leucogranite. The most evolved fractions host polymetallic (Sn, W, U, Mo, Cu, Zn, Ag, and Mn) mineral deposits. We have attempted to: (i) constrain the age of granite emplacement and its relationship to the ca. 410 Ma Acadian orogeny; (ii) determine the temporal relationship between the different phases of the SMB; and (iii) assess the temporal relationship between SMB emplacement and mineral deposits formation. Here we integrate new age data (U/Pb on zircon and monazite, Re/Os on molybdenite, and Ar/Ar on muscovite) with published Rb/Sr, U/Pb, and Ar/Ar ages to constrain the duration of both magmatic and hydrothermal activity.
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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) | 0.001 | 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".