Lu-hf total-rock isochron for the eucrite meteorites

Nature
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Abstract

The isotope 176Lu (2.6% of natural lutetium) decays by ??- to 176Hf, with a long half life. We present here the first Lu-Hf isochron. The eucrite meteorites, a suite of planetary igneous rocks of known age, 4,550 Myr, define a 10-point total-rock isochron with a slope of 0.0934 ?? 40, leading to a value of 3.53 ?? 0.14 ??1010yr for the ??--decay half life of 176Lu. The isochron intercept of 0.27973 ?? 12 gives the initial 176Hf/177Hf for the inner Solar System at the time of accretion. ?? 1980 Nature Publishing Group.
Publication type Article
Publication Subtype Journal Article
Title Lu-hf total-rock isochron for the eucrite meteorites
Series title Nature
DOI 10.1038/288571a0
Volume 288
Issue 5791
Year Published 1980
Language English
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Nature
First page 571
Last page 574
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