Bibliographic record
Abstract
A uraninite crystal from the Roode pegmatite in southern Norway displays clear sector zoning mostly defined by the main U-Th substitution, with sharp changes in chemical compositions between the cubic and the octahedral sectors; a weaker concentric zoning defined by the same chemical variations is also present. The {100} sectors incorporate slightly more U whereas the {111} sectors incorporate slightly more Th, Y, and REEs. The cubic sectors contain on average ca. 77.0 wt.% UO2, ca. 6.6 wt.% ThO2, ca. 0.6 wt.% ΣREE2O3, and ca. 0.45 wt.% Y2O3; the octahedral sectors contain on average ca. 73.8 wt.% UO2, ca. 9.1 wt.% ThO2, ca. 0.8 wt.% ΣREE2O3, and ca. 0.55 wt.% Y2O3. The development of sector zoning in uraninite is possibly due to the interplay between the difference in effective ionic radius between U and Th and the difference in protosite density between the {100} and {111} sectors.
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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".