Reports

Geochronology: Recent Development in the Lutetium-176/Hafnium-176 Dating Method

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Science  05 Jun 1970:
Vol. 168, Issue 3936, pp. 1219-1220
DOI: 10.1126/science.168.3936.1219

Abstract

The application of the lutetium-176/ hafnium-176 method to gram quantities of minerals containing rare earths is made possible by the development of analytical and isotope dilution techniques for microgram amounts of lutetium and hafnium. The geological redetermination of the half-life of lutetium-176 (3.3 ± 0.5 x 1010 years) is in agreement with recent physical measurements.

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