GRAIN MICROMORPHOLOGY IN THE RANNAMÕISA SECTION, LOWER CAMBRIAN, ESTONIA
Bibliographic record
Abstract
Sand and silt grains of Lower Cambrian siliciclastic rocks in Estonia were studied by the scanning electron microscope and energy dispersive spectrometer to find out if grain micromorphology might prove useful in determining clast sedimentologic and diagenetic history.The majority of grains studied fall in the range of 40-70 ит diameter, have angular shapes, and show considerable dissolution.The predominant minerals, quartz with minor amounts of K-feldspar are cemented by silica.Quite possibly these aggregates are the result of fluctuating water tables in weathering conditions over a long period of time.Prevalent etching on most grain surfaces obscures microfeatures that might reveal exact transport histories.Grain shape, size, and sorting, also sedimentary structures suggest the material of sandstones at Rannamdisa was transported into the sedimentary basin mainly in suspension, aeolian and/or fluvial, which permitted no rounding of grains.
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.002 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 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 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".