Table 1
TiO2 content, calculated band center, band depth, and VNCS of CE-5 and Apollo samples.
| Sample (Is/FeO) | TiO2 (wt.%) | Band I center (nm) | Band II center (nm) | Band I depth | Band II depth | VNCS |
|---|---|---|---|---|---|---|
| 0600(62) | 5.19 | 1022 | 2213 | 0.1198 | 0.0296 | 0.062 |
| 0906(46) | 5.19 | 1020 | 2188 | 0.1585 | 0.0438 | 0.058 |
| 10084(88) | 7.54 | 1005 | 2210 | 0.0806 | 0.0188 | 0.062 |
| 12001(62) | 2.96 | 985 | 2115 | 0.1249 | 0.0616 | 0.087 |
| 12030(20) | 3.23 | 960 | 2070 | 0.1844 | 0.0923 | 0.098 |
| 15041(93) | 1.83 | 975 | 2070 | 0.1178 | 0.0427 | 0.091 |
| 15071(71) | 1.81 | 975 | 2000 | 0.1325 | 0.0523 | 0.103 |
| 70181(61) | 7.57 | 985 | 2085 | 0.0692 | 0.0216 | 0.076 |
| 71501(44) | 9.31 | 1000 | 2205 | 0.0766 | 0.0282 | 0.067 |
| 79221(91) | 6.39 | 1010 | 2175 | 0.0454 | 0.0122 | 0.081 |
Notes. The Is/FeO numbers and TiO2 content of Apollo samples come from Taylor et al. (2001). The TiO2 content of CE-5 samples was calculated based on the Ti content (3.11%), which was obtained by using instrumental neutron activation analysis (INAA) through 50Ti (n, γ)51 Ti nuclear reaction (Yao et al. 2022).
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