Cenozoic faulting in the Upper Hyland River Valley, Southeastern Yukon: A thermochronological perspective
Bibliographic record
Abstract
The Logan fault is one of many dextral faults that strike generally parallel to the northwest trend of the Northern Canadian Cordillera. Though widely documented, the timing and magnitude of displacement on many of these orogen-parallel faults are not well-constrained. Here, we present new low-temperature thermochronology data and thermal history models from the Upper Hyland River Valley area in the Logan Mountains in southeastern Yukon that document accelerated cooling between ca. 60–50 Ma in localized regions adjacent to faults that strike obliquely to and likely connect with the Logan fault. We propose that this phase of localized cooling was driven by the activation of a network of faults in the Upper Hyland River Valley, resulting in ∼4–5.5 km of local exhumation. We suggest that faulting in the Upper Hyland River Valley was synthetic with dextral slip on the Tintina fault, a lithospheric-scale structure thought to have accommodated ∼430 km of dextral strike-slip.
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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 | 0.001 | 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 | 0.001 |
| 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".