Supplementary data for "Age, Geochemistry and Radiogenic Heat Production of Felsic Intrusive Rocks from the Eastern Athabasca Basin, Saskatchewan" GSC Open FIle
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Bibliographic record
Abstract
This research builds on a recent study from the southwestern Athabasca Basin, which identified a large pluton linked to the 1.85–1.80 Ga high heat-producing Hudsonian granitoid suite as a key component of the local uranium ore system. Here, we test a similar hypothesis in the eastern Athabasca Basin, where uranium deposits are proposed to coincide with a zone of elevated heat production near the boundary between the Wollaston and Mudjatik domains of the Hearne craton. To investigate, we collected samples of felsic intrusive rocks from uranium deposits and discoveries along a transect across the Wollaston–Mudjatik Transition Zone (WMTZ), and assessed their age, geochemistry, and radiogenic heat production capacity to evaluate affinities with the Hudsonian suite. Although a single syn-orogenic granite sample south of the present-day basin margin yielded an age of 1826 ± 3 Ma and may represent a typical Hudsonian intrusion, other samples assumed to be Hudsonian were determined to be older Paleoproterozoic granites (ca. 1.875 Ga) or metamorphosed Neoarchean granites (2.58–2.67 Ga). Radiogenic heat production values mostly fall within global averages for granite and upper continental crust (1.6 – 3.5 µWm-3), although pegmatitic samples are elevated relative to nearby granites. Whereas the data are equivocal in defining a high heat-producing corridor within the WMTZ, new metamorphic ages from zircon rims (ca. 1.83, 1.81, 1.77 Ga) decrease from southeast to northwest across the zone, and highlight its role as a long-lived thermotectonic and structural boundary. This data repository includes the geochemistry (Table S1) and SHRIMP zircon U-Pb (Table S2) data for the corresponding Geological Survey of Canada Open File report
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.006 | 0.004 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.043 | 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