Magnetotelluric imaging of Precambrian lithosphere beneath southern Alberta
Bibliographic record
Abstract
Magnetotelluric (MT) data were collected at 67 stations during the 2008, 2009, and 2010 field seasons in southern Alberta. These have been combined with more than 300 MT stations previously collected in Alberta, allowing a three dimensional electrical resistivity model of the lithosphere to be developed to depths of 250 km. Initial modelling attempts of the MT data in southern Alberta showed that two dimensional data analysis could not be used to model these data. Therefore this study was undertaken to determine a three dimensional model that fits the data. The resulting 3-D resistivity model has shown a regionally pervasive conductor in the upper mantle below the Loverna Block, coincident with a north dipping reflector. A similar regional conductor and north dipping reflector occurs below part of the Medicine Hat Block, further characterizing the Precambrian subduction zones below southern Alberta.
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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) | 0.018 | 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".