| タイトル | Ion probe determinations of the rare earth concentrations of individual meteoritic phosphate grains |
| 著者（英） | Zinner, E.; Crozaz, G. |
| 著者所属（英） | Washington Univ. |
| 発行日 | 1985-04-01 |
| 言語 | eng |
| 内容記述 | A new ion probe method for quantitative measurements of the concentrations of all the REE down to the ppm level in 5-20 micron spots is presented. The first application of the method is the determination of REE abundances in meteoritic phosphates. Results are shown to be in good agreement with previous INAA and ion probe determinations. The merrillites in the St. Severin amphoterite are richer in REE than the apatites (the enrichment factors, for various REE, range from 2.3 to 14.2) in contradiction with the results of Ebihara and Honda (1983). Provided good standards for other mineral phases are found or implanted marker ion techniques are used, the method should find a wide range of applications for the study of both terrestrial and extraterrestrial crystals at the microscopic level. |
| NASA分類 | LUNAR AND PLANETARY EXPLORATION |
| レポートNO | 85A34574 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/391449 |
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