¹²⁹I in Iodyrite and Marshite
The concentrations of 129I incorporated in iodyrite (AgI) and marshite (CuI) are determined by measurements of radiogenic 129Xe. In addition to radiogenic 129Xe, some of these iodine-rich minerals contain excesses of 128Xe, 126Xe and 124Xe which are assigned to (n, γβ-), (n, 2nβ-) and spallation reactions on 127I, respectively. The concentrations of radiogenic 129Xe indicate that the initial isotopic composition of iodine in iodyrite was (1.48±0.33)10-14 ≤ 129I127I ≤ (9.8±2.2)10-14 and in marshite it was (0.32±0.24)10-14 ≤ 129I127I.
E. W. Hennecke and O. Manuel, "¹²⁹I in Iodyrite and Marshite," Journal of Inorganic and Nuclear Chemistry, vol. 39, pp. 559-563, Pergamon Press Ltd., Feb 1977.
The definitive version is available at https://doi.org/10.1016/0022-1902(77)80565-4
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© 1977 Elsevier, All rights reserved.
01 Feb 1977