Potassium: Argon Dating of Iron Meteorites

Science  24 Feb 1967:
Vol. 155, Issue 3765, pp. 999-1000
DOI: 10.1126/science.155.3765.999


The potassium:argon age of the metal phase of Weekeroo Station iron meteorite, determined by neutronactivation analysis, is about 1010 years; it is similar to ages previously measured for other iron meteorites, but distinctly disagrees with a strontium: rubidium age of 4.7 X 109 years measured by other workers on silicate inclusions in this meteorite.