Origin of Low-26Al/27Al Corundum/Hibonite Inclusions in Meteorites

Most meteoritic calcium-rich, aluminum-rich inclusions formed from a reservoir with 26 Al/ 27 Al ≈ 5 × 10 −5 , but some record lower ( 26 Al / 27 Al ) 0 , demanding they sampled a reservoir without live 26 Al. This has been interpreted as evidence for “late injection” of supernova material into our...

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