One should not make much of the very small observed range of isotopic fractionation in zinc because only a few samples were analyzed. Allegre, C. Edwards, B. This form of isotopic fractionation is ...

THE age of four samples of granitic rocks selected by the Establishment for Nuclear Materials (Beograd, Yugoslavia) has been measured by the rubidium/strontium method. All analyses were made on ...

IN the determination of the ages of rocks by the method of rubidium–strontium isotope dilution analysis, many laboratories have stored the standard rubidium chloride, strontium chloride and spike ...

An oversight in a radioisotope dating technique used to date everything from meteorites to geologic samples means that scientists have likely overestimated the age of many samples, according to new ...