Tectonic control on development of a Frasnian–Famennian (Late Devonian) palaeokarst surface, Canning Basin reef complexes, northwestern Australia
Why this work is in the frame
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Bibliographic record
Abstract
The Frasnian–Famennian boundary in the Canning Basin has long been associated with a shelf‐wide, short‐lived fall in relative sea‐level. A near‐planar palaeokarst surface, separating Frasnian proximal forereef and Famennian backreef facies, locally marks the boundary in the northwestern Lennard Shelf (Chedda Cliffs area, northern Napier Range). Surface and subsurface relationships between the Frasnian and Famennian strata suggest that a major episode of normal faulting and associated tilting in the latest Frasnian uplifted the platform margin to subaerially expose and erode all of the margin and uppermost forereef facies. Tectonic control on the development of this Frasnian–Famennian palaeokarst surface questions the interpretation of a simple, shelf‐wide eustatically driven relative sea‐level fall. Instead, a tectonic event affecting the northwestern Lennard Shelf, coupled with widespread recognition of a reduction in carbonate production at or very near the Frasnian–Famennian boundary elsewhere on the shelf, supports earlier interpretations of a major phase of basin‐margin uplift related to extension along basin‐bounding faults.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 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 it