Shockingly Inhomogenous Impact Melts

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A recent study, published in the journal Meteoritics and Planetary Science by Hamann et al. reports new petrographic observations that demonstrate liquid immiscibility in impact melts. Immiscibility is when two liquids don’t readily mix, like oil and water, but in this case, such immiscibility is occurring between silicate and iron-rich melts. This is a surprising result, given the compressed timescale of shock events, but may help explain the wide compositional ranges observed in many melt sheets. READ MORE »