Bibliographic record
Abstract
Abstract There is evidence that Mars had a strong magnetic field in the past, but the field decayed away a few hundred million years after the planet's formation. Although several mechanisms have been proposed for the decline of the Martian dynamo, the role of the emergence of an isolated mantle plume beneath the Tharsis volcanic region deserves particular attention because of its temporal correlation with the cessation of the dynamo. Here we look at convection-driven dynamo models with an isolated patch of low heat flux at the core–mantle boundary to understand how the heat flux anomaly related to a single mantle plume affects dynamo action. Our work suggests that the emergence of the Tharsis plume at low (0–15°) latitudes would probably terminate a pre-existing dynamo well before the uplift of the Tharsis rise. At higher latitudes, whether such a plume would terminate or only weaken the dynamo depends on its latitude.
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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) | 0.000 | 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".