Ba Isotope Composition of Tagish Lake Meteorite
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Bibliographic record
Abstract
Introduction: The study of Ba isotopes is useful tool to understand the variations in s-process and r-process produced isotopes in the whole rock fractions of primitive meteorites [1]. Isotopic anomalies in Ba, Sm and Nd have been established in whole rock samples through high precision measurements using TIMS [1-3]. These measurements have shown that while there are p process deficiencies in Sm, and there is no r or s process anomaly in Nd or Sm. Ba isotope anomalies in Murchison acid residues have been known since early 1990s. Furthermore it has also been shown that acid leaches of whole rock fractions of meteorites show variable anomalies in Ba, suggesting different carrier phases for the different anomalies [4]. We report here preliminary results from similar leaching experiments of Tagish Lake meteorite and Ba isotope composition in the leach fractions and residue.
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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 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 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