The40Ar/39Ar technique is an analytical variation of the K−Ar dating method. A known fraction of the39K in a sample is converted to39Ar by irradiation with fast neutrons. In an incremental heating experiment, the argon is released from the sample fractionally by stepwise heating. The result is a series of apparent ages.40Ar/39Ar age spectrum was determined for the sample Oase Vestfold. The minimum of the saddle-shaped age spectrum gives 1.0 billion years.
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G. B. DALRYMPLE, M. A. LANPHERE, Potassium — Argon Dating, Freemann Co., San Francisco, 1969.
E. K. JESSBERGER, Chem. Erde, 41 (1982) 40.
N. R. BRERETON Earth Planet, Sci. Lett., 8 (1970) 427.
J. HOFMANN, G. KAISER, W. KLEMM, Z. geol. Wiss., 8 (1980) 1561.
M. A. LANGPHERE, G. B. DALRYMPLE Earth Planet, Sci. Lett., 32 (1976) 141.
R. M. STEIGER, E. JÄGER, Earth Planet, Sci. Lett., 36 (1977) 359.
G. B. DALRYMPLE, M. A. LANGPHERE, Earth Planet, Sci. Lett., 12 (1971) 300.
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Kaiser, G., Loos, G. 40Ar/39Ar — Alter eines Basits der Ostantarktis. Journal of Radioanalytical and Nuclear Chemistry, Articles 83, 129–133 (1984). https://doi.org/10.1007/BF02209303