Micro-XRF Study of Buzzard Coulee Meteorite
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
Summary A 35 mm square slice of Buzzard Coulee meteorite was cut with a wire-saw and polished. The brecciated structure of the meteorite is evident, especially in the silicate matrix. The slice was further examined using a micro-XRF. Approximately 1 million spots in five images were mosaiced to give an overall resolution of 40 micrometres per pixel. 8-bit grey scales images were produced for many major and minor elements, however, the system is not very sensitive for elements lighter than magnesium. Elemental maps were adjusted for contrast and then assembled into three-colour composite images for further interpretation. The overall composition was kamacite = 10.9%; taenite = 0.23%; troilite = 3.7% with the remainder dominated by silicates. Maps of Cr, Cu, P and Ca reveal the presence of sparse grains of chromite, chalcopyrite and Ca-phosphate (merrilite?). Mineral distribution was heterogeneous throughout the slice and conformed to some extent to the fragments identified in the scanned image. The distribution of sulphides is particularly interesting and may reveal other fragments. In one part of the slice a foliation is clearly visible, revealed both by the orientation of flattened chondrules and metal grains. Adjoining chondrules are indented suggesting pressure solution during compaction. Hence, there seems to evidence of deformation during lithification, a normal process on earth but perhaps less expected on an asteroid.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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