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Science 14 April 1967:
Vol. 156. no. 3772, pp. 233 - 236
DOI: 10.1126/science.156.3772.233
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Articles

Xenon-Iodine Dating: Sharp Isochronism in Chondrites

C. M. Hohenberg 1, F. A. Podosek 1, and John H. Reynolds 1

1 Department of Physics, University of California, Berkeley

Measurements of the accumulation of Xel29 from radioactive decay of extinct 1129 in meteorites show that the 1129/ 1127 ratio in high-temperature minerals in diverse chondrites was 10-4 at the time of cooling. The uniformity in the ratio indicates that the minerals cooled simultaneously within 1 or 2 million years.


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