Cambrian ichnofabrics from the Ossa Morena and Central Iberian zones: preliminary results
Bibliographic record
Abstract
The study of ichnofabrics across the terminal Proterozoic - Lower Cambrian remains at a preliminary stage and largely restricted to shallow-water subtidal deposits (e.g. Droser et al.., 2002a,b). Preliminary results from the study of ichnofabrics of shallow-water Lower Cambrian siliciclastics of the Ossa Morena and Central Iberia zones, show considerable similarity to published results from the Cambrian of Newfoundland. The combined study of terminal Neoproterozoic and Cambrian strata of the Central Iberian and Ossa Morena zones provides an excellent opportunity to gain improved knowledge of the nature and development of early infaunal activity in shallow water as well as basinal settings. These studies also will provide improved age constraints on rocks of problematic age such as the Alcudian of the Central Iberian Zone. Preliminary work on the Azuaga Formation of the Ossa Morena Zone provides support for a Cambrian age on account of the presence of apparent bioturbation.
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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 | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.005 | 0.004 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.002 |
| 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".