Geologic setting of serpentine deposits on Mars
Geologic setting of serpentine deposits on Mars
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DOI：
10.1029/2010gl042596
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发表时间：
2010-03-25
影响因子：
5.2
通讯作者：
Murchie, S. L.
中科院分区：
文献类型：
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作者：
Ehlmann, B. L.;Mustard, J. F.;Murchie, S. L.
最近使用火星勘测轨道器数据在火星上发现的Serbian并不常见，但在三种地质环境中发现：（1）在Claritas Rise和Nili Fossae的混杂地形中，（2）与南部高地的一些撞击坑有关，（3）与Isidis盆地附近的区域橄榄石丰富的地层单位有关。任何目前活跃的蛇纹石化过程都将发生在地表之下，矿物产品在地表和轨道数据中并不明显;然而，在几个诺亚纪地形中发现蛇纹石表明火星过去有活跃的蛇纹石化过程。重要的影响是过去生产的磁铁矿，这可能有助于化学剩余磁化火星的地壳，和生产的H-2，这是一个合适的能源，为化学合成微生物的生命。引文：Ehlmann，B. L.，J. F. Mustard和S. L. Murchie（2010），火星上蛇纹石矿床的地质背景，地球物理学。保留信函：37，L06201，doi：10.1029/2010GL042596。
Serpentine, recently discovered on Mars using Mars Reconnaissance Orbiter data, is uncommon but found in three geologic settings: (1) in melange terrains at the Claritas Rise and the Nili Fossae, (2) associated with a few southern highlands impact craters, and (3) associated with a regional olivine-rich stratigraphic unit near the Isidis basin. Any presently active serpentinization processes would be occurring beneath the surface and mineral products would not be apparent with surface and orbital data; however, finding serpentine in several Noachian terrains indicates active serpentinization processes in Mars' past. Important implications are the past production of magnetite, which may contribute to chemical remnant magnetization of Mars' crust, and production of H-2, which is a suitable energy source for chemosynthetic microbial life. Citation: Ehlmann, B. L., J. F. Mustard, and S. L. Murchie (2010), Geologic setting of serpentine deposits on Mars, Geophys. Res. Lett., 37, L06201, doi: 10.1029/2010GL042596.