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有读书笔记Lunar apatite with terrestrial volatile abundances

Dr.LinZhen 添加于 2010-7-25 17:07 | 1854 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
    • 备注:PMID:20651686

  • 相关链接 DOI URL 

  •  Dr.LinZhen 的文献笔记  订阅

    月球磷灰石与地球相似

    月球磷灰石与地球相似人们认为，月球内部相对于地球来说氢、氯和其他挥发性元素较贫乏，原因是在形成月球的碰撞过程中，气体几乎全部跑掉了。对“月球玄武岩14053”（由“阿波罗14号”的宇航员收集的一个被研究得很多的月球岩石样品）所做的新的分析表明，月幔或月壳的部分地方所含挥发性物质可能要比人们以前所认为的更丰富。来自“14053”的磷灰石矿物中氢、氯和硫的浓度与来自地球上普通火成岩中的磷灰石无法区分。对来自其他可以获得的月球岩石类型的磷灰石进行测定，将可帮助澄清这种玄武岩之与地球相似特性的普遍性及重要性。

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