Thirty years of the first international stratotype: The Silurian-Devonian boundary at Klonk and its present status
Why this work is in the frame
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Bibliographic record
Abstract
The first international stratotype, selected according to modern stratigraphic principles, is the section with the Silurian-Devonian boundary at Klonk in the Barrandian area, Czech Republic. Its approvement at the XXIV IGC in Montreal, 1972 deeply influenced the further development of stratigraphic principles and praxis in achieving an objective base for definition of global chronostratigraphic units, later followed in establishments of GSSP in different parts of the global stratigraphic column. The procedure of the establishment, present status and correlative value of the Silurian-Devonian boundary stratotype are reviewed, confirming the suitability of its selection.
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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 | 0.000 | 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 it