Open Access

Table A.7

Summary of the appearance and changes of minerals (main peaks) before and after the irradiations.

mineral appear later disappeared later cyclic appearance occur always
spinel 17 (11%) 5 (3%) 17 (11%) 9 (6%)
pyroxene 11 (7%) 15 (9.5%) 15 (9.5%) 16 (10%)
feldspar 10 (6%) 8 (5%) 18 (11%) 22 (14%)
olivine 16 (10%) 11 (7%) 7 (4%) 5 (3%)

Notes. (Before irradiation: 46 identified mineral spectra, after first irradiation: 26 spectra, after second irradiation: 37 spectra, after third irradiation: 49 spectra.) In the above cases, all of the band observations were successful both after and before the irradiations, while the cyclic band appearance indicates that the given band emerged earlier, later disappeared, and finally emerged again.

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