Lithium isotopic composition in some stone meteorites
1980
The isotopic composition of lithium has been determined in two achondrites and seven chondrites (including two carbonaceous chondrites). No significant variations in the 7 Li/ 6 Li at the 1% level were found. Our results set upper limits of 1 × 10 19 or 3 × 10 20 protons/cm 2 with E p > 5MeV, depending on the model, for the excess irradiations possibly suffered by these meteorites (including Allende) compared to earth.
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