Lightning Strike Fusion: Extreme Reduction and Metal-Silicate Liquid Immiscibility

@article{Essene1986LightningSF,
  title={Lightning Strike Fusion: Extreme Reduction and Metal-Silicate Liquid Immiscibility},
  author={Eric J. Essene and D. C. Fisher},
  journal={Science},
  year={1986},
  volume={234},
  pages={189 - 193}
}
A glassy fulgurite, formed recently on a morainal ridge in southeastern Michigan, contains micrometer- to centimeter-sized metallic globules rich in native silicon, which unmixed from a silica-rich liquid. The unusual character of these globules and their potential for elucidating conditions of fulgurite formation prompted further study. Thermodynamic calculations indicate that temperatures in excess of 2000 K and reducing conditions approaching those of the SiO2-Si buffer were needed to form… 

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