Shock Deformation and Transformation Effects in Unbrecciated Lunar Mare Basalt Northwest Africa 032
Bibliographic record
Abstract
Lunar meteorites are an important source of information about the Earth’s moon. In this study, the mineralogy and texture of lunar meteorite Northwest Africa 032, an unbrecciated lunar basalt, is characterized. Shock veins and shock melt pockets are the main foci, which gives a better understanding of the impact history of this lunar meteorite. Four types of instruments were used: the petrographic microscope, scanning electron microscope, electron microprobe, and Raman spectrometer. The microprobe quantified the abundance of elements contained in the shock veins and shock melt pockets: Si, Ti, Al, Cr, Fe, Mn, Mg, Ca, Na, K, P and S. SEM provide detailed high-resolution images where we are interested in. Raman spectroscopy shows the structure of minerals that crystallized from shock melt, as well as the state of igneous plagioclase, which is sensitive to shock pressure. The studied shock effects tell us that NWA 032may have experience shock pressure >23 GPa. This shock was likely the same impact event that ejected the meteorite from the Moon. The shock pressure raised the shock veins and shock melt to temperatures over 1200 °C. As a result, the partial melting took place. NWA 032 is currently the youngest dated (2.93 Ga) lunar igneous rock. The history of the lunar sample NWA 032 holds evidence that a significant number of impact events occurred in the past on the moon's surface. Discipline: Physical Science Faculty Mentor: Dr. Erin Walton
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How this classification was reachedexpand
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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".