A FUN-like hibonite inclusion with a large 26Mg-excess

• Published in: Earth and planetary science letters Vol. 254; no. 1-2; pp. 115 - 126
• Main Authors: Ushikubo, Takayuki, Hiyagon, Hajime, Sugiura, Naoji
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 15.02.2007
• Subjects: CAI; early solar system; FUN inclusion; hibonite; isotope; short-lived nuclide; FUN inclusion; hibonite; CAI; isotope; early solar system; short-lived nuclide

We found a unique hibonite (CaAl12O19) inclusion Kz1–2 from the Kainsaz (CO3) chondrite, which exhibits evidence for a strong link between “normal” CAIs and FUN inclusions. Kz1–2 shows strongly fractionated isotopic compositions of O, Ca, and Ti preferring heavy isotopes and a characteristic REE abu...