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Thermal neutron interferences in the 40 Ar/ 39 Ar dating technique

✍ Scribed by Tetley, Neil; McDougall, Ian; Heydegger, H. R.

Book ID
118670521
Publisher
American Geophysical Union
Year
1980
Tongue
English
Weight
512 KB
Volume
85
Category
Article
ISSN
0148-0227

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## HISTORICAL DEVELOPMENT AND BASIC PRINCIPLES The K-Ar method is based on the quantitative accumulation of the isotope 40 Ar\* ('\*' denotes radiogenic) generated by the radioactive decay of naturally occurring 40 K (about 0.01% of all potassium, and having a half-life of 1.250 billion years 1,2