• Irradiation history and atmospheric ablation of meteorites: Results from cosmic ray track studies

    • Fulltext


        Click here to view fulltext PDF

      Permanent link:

    • Keywords


      Tracks; cosmic ray; meteorite; ablation; solar flares; irradiation history; exposure age; accretionary processes

    • Abstract


      The dominant component of nuclear tracks observed in meteoritic minerals poor in uranium is produced by cosmic ray very heavy (vh:Z>20) nuclei. Studies of cosmic ray tracks and other cosmogenic effects in meteorites give us information on the irradiation history of these meteorites and enable us to estimate the extent of ablation during their atmospheric transit, and hence their pre-atmospheric masses. In a specific type of meteorite, known asgas-rich meteorite, one finds individual grains and xenoliths that have received solar flare and galactic cosmic ray irradiation prior to the formation of these meteorites. Detailed studies of these exotic components give insight into the accretionary processes occurring in the early history of the solar system. Some of the important results obtained from such studies and their implications to meteoritics are summarized.

    • Author Affiliations


      J N Goswami1

      1. Physical Research Laboratory, Ahmedabad - 380 009, India
    • Dates

  • Journal of Earth System Science | News

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

© 2021-2022 Indian Academy of Sciences, Bengaluru.