Abstract
Abundance regularities for heavy nuclei (A>58) are investigated and formulated as abundance rules. Abundance values of carbonaceous chondrites of type 1 and 2 as well as most probable values for primordial abundances are listed. The abundance rules definitely require minor connections of the empirical values. A measurement of the (n, γ) cross-section of Pd104 would make possible to decide whether type-1 or type-2 carbonaceous chondrites have a more primitive elemental composition.
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Paper dedicated to Prof. Harold C. Urey on the occasion of his 80th birthday on 29 April, 1973.
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Suess, H.E., Zeh, H.D. The abundances of the heavy elements. Astrophys Space Sci 23, 173–187 (1973). https://doi.org/10.1007/BF00647656
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DOI: https://doi.org/10.1007/BF00647656