Ķīmiskais sastāvs: | Oxygen isotopes (K. Ziegler, UNM): 7 pre-rain fragments analyzed by laser fluorination gave δ18O= 10.342, 10.807, 11.591, 12.314, 12.249, 12.669, 9.748; δ17O= 2.381, 2.932, 3.360, 3.843, 3.995, 3.959, 2.143; Δ17O=-3.080, -2.775, -2.759, -2.659, -2.472, -2.730, -3.004 (linearized, all per mil, TFL slope=0.528). Microprobe (L. Garvie, ASU): Fa0.4-41.0, n=10. |
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