Short Cosmic-Ray Exposure Ages of CI and CM Chondrites May Reflect Disintegration of Volatile-Rich Asteroids at Perihelion
E. R. D. Scott, Herzog G. F.
52nd Lunar and Planetary Science Conference (2021), Abstract #1833
“Dark, volatile-rich asteroids seem to disintegrate near the Sun. This may explain why CM and CI chondrites have short cosmic ray exposure ages of a few million years or less.”