Aqueous processes recorded by martian meteorites : Analyzing martian water on earth
Aqueous processes recorded by martian meteorites : Analyzing martian water on earth
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火星陨石记录的水过程：分析地球上的火星水
DOI：
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
E. Vicenzi
中科院分区：
文献类型：
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作者：
L. Leshin;E. Vicenzi
火星陨石将水分子和火星上水过程产生的矿物质输送到地球。使用强大的分析仪器对这些样本进行研究，为了解火星上的水活动提供了基础。尽管大多数分析都是在微米尺度上进行的，但所得出的结论对于大规模水处理过程具有重要意义。次生矿物，如粘土、盐和碳酸盐，在所有火星陨石亚型中都存在一定程度的存在，并且在钠闪石和 ALH84001 中尤其重要。轻元素稳定同位素分析显示了大气和岩浆流体混合进入地壳储层的证据，并且地壳水与母岩不平衡。矿物学和同位素数据呈现了火星水相历史的相当一致的图景：通常存在低水平的水相蚀变，但广泛的水相过程可能在空间和时间上受到限制。
Martian meteorites have delivered to Earth water molecules and minerals produced by aqueous processes on Mars. The study of these samples, using powerful analytical instrumentation, provides a basis for understanding aqueous activity on Mars. Although most analyses are at the scale of microns, the conclusions reached have important implications for large-scale aqueous processes. Secondary minerals, such as clays, salts, and carbonates, are present at some level in all Martian meteorite subtypes and are especially important in the nakhlites and ALH84001. Light element stable isotope analyses show evidence for mixing between atmosphere and magmatic fluids into a crustal reservoir, and that this crustal water was not in equilibrium with the host rocks. The mineralogical and isotopic data present a fairly consistent picture of the aqueous history of Mars: low levels of aqueous alteration are generally present but extensive aqueous processes are probably limited in space and time.