Clay mineralogy and chemical properties of argillic horizons in central Yukon paleosols
Why this work is in the frame
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Bibliographic record
Abstract
Daviel, E., Sanborn, P., Tarnocai, C. and Smith, C. A. S. 2011. Clay mineralogy and chemical properties of argillic horizons in central Yukon paleosols. Can. J. Soil Sci. 91: 83-93. Wounded Moose paleosols occur on Middle Pleistocene and older glacial deposits in central Yukon, and exhibit thick sola with distinctive reddish brown argillic (Bt) horizons. Extensive field investigations in the mid-1980s documented the distribution, morphology, and standard physical and chemical properties of these paleosols, but paleoenvironmental interpretations of their clay mineralogy relied on analyses of only two pedons. New analyses of archived B horizon samples from 15 paleosol pedons demonstrate that these exhibit the highest degree of mineral weathering documented in Yukon soils and surficial materials, as expressed by Chemical Index of Alteration values that can exceed 80. This strong weathering is accompanied by ∼90% conversion of pedogenic iron oxides to crystalline forms. Clay mineral assemblages in this larger set of argillic horizons confirm a consistent and widespread presence of pedogenic smectite and interstratified minerals in central Yukon paleosols as initially detected in the limited earlier work.
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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 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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