A Spinifex-Textured Andesite in Erg Chech 002 that Bears on the Achondrite’s Origin and Age

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Sanders I. S.* Simms M. J. Guyett P. C.

METSOC 2026 abstract (PDF)

“A fine-grained, spinifex-textured second andesite in the oldest-known achondrite, Erg Chech 002, opens new discussion of the meteorite’s cooling history, its magmatic source, and its disparate isotopic dates.”

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