Noble Gas Isotopes on the Moon
Noble Gas Isotopes on the Moon
复制标题
月球上的稀有气体同位素
DOI：
10.1007/978-94-010-0145-8_13
复制
发表时间：
2003
影响因子：
10.3
通讯作者：
V. Heber
中科院分区：
文献类型：
--
作者：
R. Wieler;V. Heber
我们讨论了月球上的一些主要惰性气体成分及其对月球和太阳历史的影响。在稀薄的月球大气中已经探测到He、Ar和Rn。Ar和Rn的丰度表明，月球内部相当大的一部分目前已经失去了所有新产生的放射性惰性气体。从月球内部释放出来的部分放射性成因的Ar和Ar（后者现在已经灭绝了I和Pu的放射性同位素）后来被重新捕获在月球表面的尘埃颗粒中。这些“无母”气体也可能被用来限制月球的脱气历史，尽管缺乏定量的了解。月球表面的尘埃层含有大量由太阳风注入的惰性气体。因此，月壤构成了过去40亿年太阳历史的最佳档案。
We discuss some of the major noble gas components on the Moon and their implications on the history of Moon and Sun. He, Ar, and Rn have been detected in the tenuous lunar atmosphere. The Ar and Rn abundances suggest that a sizeable fraction of the lunar interior presently loses all its freshly produced radiogenic noble gases. Part of the radiogenic Ar and Xe (the latter from now extinct radioactive isotopes of I and Pu) outgassed from the lunar interior later became retrapped in the dust grains on the lunar surface. These “parentless” gases may also be used to constrain the degassing history of the Moon, although a quantitative understanding is lacking. The dust layer on the lunar surface contains large amounts of noble gases implanted by the solar wind. The lunar regolith therefore constitutes the best available archive of the solar history of the past four billion years.