Assignment of infrared OH-stretching bands in manganoan magnesio-arfvedsonite and richterite through heat-treatment
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Bibliographic record
Abstract
Infrared OH-stretching bands in some heat-treated A-site occupied and IVAl-free (or nearly free) manganoan sodic-calcic and sodic amphiboles, manganoan magnesio-arfvedsonites and richterites, have been assigned. Two OH-stretching bands, (MgMgMg)-OH-A-O2-/F-/Cl- and (MgMgMg)-OH- □(□= vacancy) configurations, persist to high temperature. With increasing temperature, the OHstretching band, A*, of the (MgMgMg)-OH-A-OH (A = A site cation) configuration shifts downward from 3730 to near 3700 cm-1 with formation of the (MgMgMg)-OH-A-O2- configuration; the repulsive interaction between the proton and the A cation is removed through dehydrogenation of OH at the O3 site, coupled with movement of the A cation toward the dehydrogenated side. In natural Fand Cl-bearing sodic-calcic and sodic amphiboles, two kinds of (MgMgMg)-OH-A stretching bands are observed at around 3730 and 3700 cm-1, in which A-site alkali ions move toward the F-(Cl-)- substituted O3 site. In this manner, (MgMgMg)-OH-K and (MgMgMg)-OH-Na bands shift downward 20 cm-1 and 26-29 cm-1 by heat-treatment, respectively, reflecting the different size of the A-site cations.
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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