Lunar apatite with terrestrial volatile abundances
mittternacht 添加于 2010-11-28 06:55
| 2262 次阅读 | 0 个评论
作 者
Boyce JW, Liu Y, Rossman GR, Guan Y, Eiler JM, Stolper EM, Taylor LA 摘 要
The Moon is thought to be depleted relative to the Earth in volatile elements such as H, Cl and the alkalis. Nevertheless, evidence for lunar explosive volcanism has been used to infer that some lunar magmas exsolved a CO-rich and CO(2)-rich vapour phase before or during eruption. Although there is also evidence for other volatile species on glass spherules, until recently there had been no unambiguous reports of indigenous H in lunar rocks. Here we report quantitative ion microprobe measurements of late-stage apatite from lunar basalt 14053 that document concentrations of H, Cl and S that are indistinguishable from apatites in common terrestrial igneous rocks. These volatile contents could reflect post-magmatic metamorphic volatile addition or growth from a late-stage, interstitial, sulphide-saturated melt that contained approximately 1,600 parts per million H(2)O and approximately 3,500 parts per million Cl. Both metamorphic and igneous models of apatite formation suggest a volatile inventory for at least some lunar materials that is similar to comparable terrestrial materials. One possible implication is that portions of the lunar mantle or crust are more volatile-rich than previously thought.-
详细资料
- 文献种类:期刊
- 期刊名称: Nature
- 期刊缩写: Nature
- 期卷页: 2010年 第466卷 第7305期 466-469页
- 地址: [1] Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, California 91125-2500, USA [2] Department of Earth and Space Sciences, University of California, Los Angeles, California 90095-1567, USA
- ISBN: 0028-0836
评论( 人)
相关链接
DOI URL
浙公网安备 33010202000686号 ( 浙ICP备09035230号-1 )
