Cosmic-Ray-produced Helium and Neon in Chondrules in Allende and Murchison
Abstract
Most chondrules in Allende and Murchison show nearly identical cosmic ray exposure ages. Six chondrules in Murchison show large cosmogenic gas excesses, most likely acquired during tens of Ma of exposure in a parent body regolith.
- Publication:
-
40th Annual Lunar and Planetary Science Conference
- Pub Date:
- March 2009
- Bibcode:
- 2009LPI....40.1838R