Reduction of Silicates at High Temperature: Fulgurites and Thermodynamic Modeling
Reduction of Silicates at High Temperature: Fulgurites and Thermodynamic Modeling
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高温下硅酸盐的还原：电熔岩和热力学模型
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
D. Lauretta
中科院分区：
文献类型：
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作者：
A. Sheffer;H. Melosh;B. Jarnot;D. Lauretta
硅酸盐的高温加工通常会产生非常还原的产物，例如 1 型球粒 [1] 和月球风化层凝集物中的含硅铁金属 [2]。先前对电闪石（沙子、土壤或岩石雷击融合的玻璃状产物）的研究发现，硅酸盐玻璃内含有金属硅和铁硅合金 [3, 4]。在这项工作中，我们提出了一种包含许多还原相的新型电熔岩，并模拟了 Al-Fe-Si-O 系统的凝结。
The high temperature processing of silicates often results in very reduced products, such as Si-bearing Fe metal in type-1 chondrules [1] and in lunar regolith agglutinates [2]. Previous work on fulgu-rites (the glassy products of the lightning strike fusion of sand, soil, or rock) found silicon metal and iron-silicon alloys inside the silicate glass [3, 4]. In this work, we present a new fulgurite that contains many reduced phases, and we model condensation of the Al-Fe-Si-O system.