| タイトル | Fission xenon in troctolite 76535 |
| 著者（英） | Podosek, F. A.; Hohenberg, C. M.; Hudson, B.; Kennedy, B. M. |
| 著者所属（英） | Washington Univ. |
| 発行日 | 1980-01-01 |
| 言語 | eng |
| 内容記述 | Xenon released in stepwise heating of troctolite 76535 shows remarkable similarity to that from the gas-rich breccias. The low temperature fractions are highly enriched in fissiogenic xenon from Pu-244. Although the quantity of fission xenon is not inconsistent with reported age data, release patterns demonstrate that this component is not due to in situ decay. However, in contrast with the gas-rich breccias, the parentless radionuclear component in 76535 is not accompanied by solar wind xenon. Mechanisms for the emplacement of this component in 76535 cannot, therefore, involve exposure on the lunar surface but most likely involve adsorption along intergranular boundaries or thermally driven redistribution. The fact that xenon released from a gas-poor igneous cumulate can mimic that from gas-rich breccias, except for the presence of solar wind xenon in the latter, suggests that direct exposure to space is not required for the incorporation of these weakly bound, surface-correlated, parentless radionuclear components in lunar samples. |
| NASA分類 | LUNAR AND PLANETARY EXPLORATION |
| レポートNO | 81A26220 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/417676 |
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