• Ghislaine Crozaz

      Articles written in Journal of Earth System Science

    • Fission tracks and cooling rates of meteorites

      Ghislaine Crozaz

      More Details Abstract Fulltext PDF

      Recent work on fission track studies of meteorite samples to obtain cooling rates of metetorite parent bodies is reviewed. The cooling rates of chondrites are in excess of 1oK/106 yr. Fission track studies of phosphate grains in mesosiderites do not support the extremely slow cooling rates of 0°1oK/108 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.

    • Fission tracks and cooling rates of meteorites

      Ghislaine Crozaz

      More Details Abstract Fulltext PDF

      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.

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