• Fission tracks and cooling rates of meteorites

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    • Keywords

       

      Fission tracks; chondrites; mesosiderites; metallography; cooling rates

    • Abstract

       

      Recent work on fission track studies of meteorite samples to obtain cooling rates of meteorite parent bodies is reviewed. The cooling rates of chondrites are in excess of 1°K/106 yr. Fission track studies of phosphate grains in mesosiderites do not support the extremely slow cooling rates of 0·1°K/106 yr for these meteorites, inferred from metallographic studies. The accumulating evidence from fission track studies indicates a gross underestimation of the cooling rates of meteorites as determined by the metallographic techniques.

    • Author Affiliations

       

      Ghislaine Crozaz1 2 3

      1. Department of Earth and Planetary Sciences, Washington University, St. Louis, Missouri - 63130, USA
      2. The McDonnel Center for Space Sciences, Washington University, St. Louis, Missouri - 63130, USA
      3. Physical Research Laboratory, Ahmedabad - 380 009, India
    • Dates

       
  • Journal of Earth System Science | News

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