Structural evolution of the Makkovik Province, Labrador, Canada: Tectonic processes during 200 Myr at a Paleoproterozoic active margin
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Bibliographic record
Abstract
In the Makkovik Province, the structures and plutonic rocks of the reworked southern edge of the Archean Nain craton (parautochthon) and an adjacent juvenile domain form a spatially concentrated record of ∼ 200 Ma at a Paleoproterozoic active margin. D1 thin‐ and thick‐skinned structures, formed during terrane collision before ca. 1896 Ma, were nearly erased by D2 transpressive structures present across the entire parautochthon that had been thermally softened by emplacement of arc plutons at ca. 1895–1870 Ma. D3 transpressive inversion of a back arc rift and D4 strike‐slip shearing formed structures at the oceanward margin of the parautochthon and were responses to events in the active arc that was now widely separated from the parautochthon by accreted terranes. The tectonic isolation of the parautochthon ended by the time of D5 (ca. 1740–1710 Ma) and D6 with the reappearance there of granite and low‐grade shear zones. Structural and plutonic style varied at each stage, primarily controlled by the crustal level attained.
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| 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) | 0.015 | 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