Title: Solar Flare Tracks in Rio Negro (L 4) Chondrite Authors: Bhandari, N., Castagnoli, G. C., Bonino, G., & Suthar, K. M.
The Rio Negro meteorite contains a small fraction of olivine and pyroxene grains which have extremely high track density (6x106 - 2.5x i0~ tracks/cm~, a factor of 10 to 100 higher than the track density observed in a large number of grains thaken from close by locations