Active and potentially active faults in or near the Alaska Highway corridor, Dot Lake to Tetlin Junction, Alaska
Bibliographic record
Abstract
in 2005 the alaska division of geological geophysical surveys initiated a multi year geologic field study focused on a corridor centered along the alaska highway between delta junction and the canada border the purpose of this project is to provide geologic information relevant to a proposed alaska canada natural gas pipeline and other future development in the corridor the scope of this project includes identification of active faults and characterization of seismic hazards during the 2008 field season the active fault studies were focused on the central part of the corridor between dot lake and tetlin junction field studies included helicopter and fixed wing air reconnaissance augmented by interpretation of stereo air photos remotely sensed images ground reconnaissance and field mapping detailed investigations were conducted where the reconnaissance identified lineaments indicative of holocene surface faulting in addition detailed field studies were conducted of several lineaments identified in the published literature as possible active faults the detailed studies included field mapping topographic profiling trenching and 14c dating of surficial sediments associated with lineaments exhibiting characteristics of active faults two faults and a large fault related anticline were found to have generated late pleistocene and holocene surface deformation in the dot lake tetlin junction section of the corridor these structures the eastern part of the dot t johnson fault the cathedral rapids fault and the giant moletrack anticline are active structures in the eastern part of the nfftb detailed investigation of the mansfield and dennison fork lineaments identified as candidate active faults in the literature produced conclusive evidence that they are not active faults detailed study of a third suspect lineament the bear creek lineament was inconclusive
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 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 source (direct Gemma or distilled Codex), 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".