Constraints on the Cooling Rate from 16O-Rich Perovskite in a Compact Type A CAI from Allende
Abstract
We report 16O-enriched perovskite enclosed by 16O-depleted melilite in a compact Type A CAI from Allende. O-isotopic compositions of both minerals are likely primary and the estimated cooling rate for the CAI is 1000-5000 K/hr.
- Publication:
-
82nd Annual Meeting of The Meteoritical Society
- Pub Date:
- July 2019
- Bibcode:
- 2019LPICo2157.6163P