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Table 3
Lunar rock samples concentration ratios obtained during Lunar missions compared to average observed X-ray fluorescence intensity ratios in this work.
| Feature | Mission | Ref. | Rock type | Concentration ratio | Observed intensity ratio (*) | ||||
|---|---|---|---|---|---|---|---|---|---|
| Al/Si | Mg/Si | Mg/Al | Al/Si | Mg/Si | Mg/Al | ||||
| Mare Tranquillitatis | Apollo 11 | [a] | High K rocks | 0.23 | 0.24 | 1.04 | 0.52 ± 0.10 | 0.62 ± 0.15 | 1.15 ± 0.24 |
| Low K rocks | 0.29 | 0.23 | 0.79 | ||||||
| Surveyor V | [b] | Regolith | 0.35 | ||||||
| Mare Fecunditatis | Luna 16 | [c] | Rocks (average) | 0.35 | 0.21 | 0.6 | 0.58 ± 0.13 | 0.51 ± 0.14 | 0.89 ± 0.29 |
| Hadley-Apennines | Apollo 15 | [d] | Fines (15021-80) | 0.34 | 0.28 | 0.85 | 0.53 ± 0.19 | 0.64 ± 0.20 | 1.26 ± 0.30 |
| Descartes Highlands | Apollo 16 | [d] | Fines (61161-7) | 0.67 | 0.18 | 0.26 | 0.81 ± 0.11 | 0.40 ± 0.14 | 0.49 ± 0.20 |
| Taurus-Littrow | Apollo 17 | [d] | Soil (72701-37) | 0.52 | 0.28 | 0.54 | 0.55 ± 0.09 | 0.55 ± 0.12 | 1.01 ± 0.26 |
Notes. (*) Obtained in this work.
References. [a] Levinson (1970), [b] Turkevich et al. (1967), [c] Vinogradov (1971), [d] Wänke et al. (1973).
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