Open AccessCosmogenic Radionuclides in the Bondoc Meteorite
Author(s) -
Phillip J. Cressy,
J. P. Shedlovsky
Publication year - 1965
Publication title -
science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 12.556
H-Index - 1186
eISSN - 1095-9203
pISSN - 0036-8075
DOI - 10.1126/science.148.3678.1716
Subject(s) - radionuclide , meteorite , isotope , radiochemistry , astrobiology , geology , chemistry , nuclear physics , physics
Long-lived cosmogenic radionuclides were measured in the stone phase and in a mechanically separated metallic nodule from a fragment of the Bondoc mesosiderite. Activity levels of the various radionuclides in both phases, along with results of mass-spectrometric measurements of rare-gas isotopes in the stone phase, indicate that heavy shielding was the chief cause of the low specific activities observed.
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