A NEW METHOD FOR THE POTASSIUM-ARGON AGE DETERMINATION AND ITS APPLICATION TO STONE METEORITES (in German)
Journal Article
·
· Z. Naturforsch
OSTI ID:4219277
out by a new method on five chondrites and two achondrites. The method is a neutron activation method, in which potassium and argon are determined by the formation of active argon isotopes. Argon-39 is produced by (n,p) reactions on pctassium-39 and argon-41 by (n, gamma ) reactions on argon-40. Since for the age determination, only the ratio of the activities of Ar/sup 39/ to Ar/sup 41/ is necessary, this method appears especially advantageous as the apparatus expenditure is low. The ages of the meteorites investigated were from 2.78 x 10/ sup 9/ to 4.25 x 10/sup 9/, and agreed with the values obtained by other methods. Values for the calcium content ot the meteorite samples were obtained from the Ar/ sup 37/ activities produced by (n, alpha ) reactions. (tr-auth)
- Research Organization:
- Max-Planck-Institut fur Chemie, Mainz
- NSA Number:
- NSA-14-002627
- OSTI ID:
- 4219277
- Journal Information:
- Z. Naturforsch, Journal Name: Z. Naturforsch Vol. Vol: 14a
- Country of Publication:
- Country unknown/Code not available
- Language:
- German
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