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Volatiles in the martian crust and mantle: Clues from the NWA 6162 shergottite

机译:Martian Crust和Mantle的挥发物:来自NWA 6162 Shergottites的线索

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摘要

Martian meteorites of various petrogeneses retain a record of volatiles on Mars: from the hydrosphere, crustal water to the mantle. Sputtering of the martian atmosphere by solar wind after the loss of Mars' magnetic field enriched it in deuterium, which exchanged with martian crustal water. Recent studies show that the hydrogen isotopic composition of the martian crustal water reservoir varies from 3000 to 7000 parts per thousand but requires better constraints. Melt inclusion glasses, maskelynite and fusion crust from the depleted olivine-phyric shergotite NWA 6162 were analyzed using NanoSIMS, providing a unique insight into the hydrogen isotopic and volatile elemental content of both the martian crustal water reservoir and the mantle source.
机译:各种纤维素的火星陨石在火星上保留了挥发物的记录:从水圈,地壳水到地幔。 火星磁场失落后,太阳风溅射了火星的氛围,富含火星地壳水。 最近的研究表明,火星地壳水库的氢同位素组成从3000到7000份,但需要更好的限制。 使用纳米粒子分析来自耗尽的橄榄石 - 富集的富磷酸盐ShorcoTITE NWA 6162的熔体包包玻璃,掩盖薄膜和融合地壳,提供了对Martian地壳水库和地幔源的氢同位素和挥发性元素含量的独特洞察。

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