A Plagioclase Xenocryst in the Oldest Quenched Angrite Northwest Africa 12879: Implications for the Relationship Between Angrite Sub-Groups and the Igneous Activity of Angrite Parent Body

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Honda R.* Hayashi H. Bizzarro M. Connelly J. N. Bollard J. et al.

METSOC 2026 abstract (PDF)

“We studied mineralogy and cosmochemistry of NWA 12879 angrite, which contains a plagioclase xenocryst. Our results indicate that APB had already developed igneous activity, producing both volcanic and plutonic rocks within ~2 Myr after CAI formation.”

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