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40Ar/39Ar dates for spreading rates in eastern Iceland

✍ Scribed by Ross, J. G.; MUSSETT, A. E.

Book ID
109697842
Publisher
Nature Publishing Group
Year
1976
Tongue
English
Weight
304 KB
Volume
259
Category
Article
ISSN
0028-0836

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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