Reports

Fossil Alpha-Recoil Analysis of Certain Variant Radioactive Halos

Science  14 Jun 1968:
Vol. 160, Issue 3833, pp. 1228-1230
DOI: 10.1126/science.160.3833.1228

Abstract

The distribution of alpha-radioactivity in the vicinity of uranium and of certain variant radioactive halos in biotite was investigated by the fossil alpharecoil method. Within the limits of the method I could not confirm a previously proposed hydrothermal mechanism for the origin of certain variant halo types due to polonium isotopes.

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