How planetary building blocks evolved from porous to hard objects

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How planetary building blocks evolved from porous to hard objects

Post by Lazarus on 20th January 2015, 7:17 pm

University of Chicago news release: Study shows how planetary building blocks evolved from porous to hard objects
Research paper: Bland et al. (2014) "Pressure–temperature evolution of primordial solar system solids during impact-induced compaction"

Interestingly it seems to require impact velocities that are inconsistent with the Grand Tack scenario (early inward then outward migration of Jupiter and Saturn), which would presumably require finding another explanation for the low mass of Mars.
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