Oxygen Isotope Ratios of Magnetite in CI-Like Clasts from a Polymict Ureilite

Kita N. T. * Defouilloy C. Goodrich C. A. Zolensky M. E.

80th Annual Meeting of the Meteoritical Society 2017 [#6153]

abstract (PDF)

“Magnetites in CI-like dark clasts in polymict ureilite show significant depletion in 16O with Δ17O=+5‰. They are either xenolitic materials to UPB that are not known as meteorites, or represent hydrated precursors of ureilites.”