#coreformation — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #coreformation, aggregated by home.social.
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A thick section in both transmitted light (crossed polarizers) & reflected light. It shows the results of an experiment at mantle conditions to equilibrate the microstructure of olivine grains (colorful) and iron-nickel-sulfur melt (bronze colored, unmixed on solidification). The sulfide melt largely forms pockets at grain corners, and does not interconnect along grain edges. This melt can not easily separate from the silicate.
#ThinSectionThursday #Mantle #ExperimentalPetrology #CoreFormation -
A thick section in both transmitted light (crossed polarizers) & reflected light. It shows the results of an experiment at mantle conditions to equilibrate the microstructure of olivine grains (colorful) and iron-nickel-sulfur melt (bronze colored, unmixed on solidification). The sulfide melt largely forms pockets at grain corners, and does not interconnect along grain edges. This melt can not easily separate from the silicate.
#ThinSectionThursday #Mantle #ExperimentalPetrology #CoreFormation -
I/Pu reveals #Earth mainly accreted from volatile-poor differentiated #planetesimals: https://www.science.org/doi/10.1126/sciadv.adg9213 ("we show that #CoreFormation alone is unlikely to explain the iodine/plutonium difference between mantle reservoirs") -> Earth Formed from Dry, Rocky Building Blocks: https://www.caltech.edu/about/news/earth-formed-from-dry-rocky-building-blocks
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I/Pu reveals #Earth mainly accreted from volatile-poor differentiated #planetesimals: https://www.science.org/doi/10.1126/sciadv.adg9213 ("we show that #CoreFormation alone is unlikely to explain the iodine/plutonium difference between mantle reservoirs") -> Earth Formed from Dry, Rocky Building Blocks: https://www.caltech.edu/about/news/earth-formed-from-dry-rocky-building-blocks