Last modified on 29 April 2010, at 19:57

Introduction to Geochronology/U-Series Disequilibria

238U to 206Pb decay series












Secular EquilibriumEdit

Analyical MethodsEdit

There are a number of different analytical approaches that can be used to dtermine the U/Th and U/Pa ratio and isotopic composition of U-bearing accessory minerals. The different techniques types discussed in more detail below.

Isotope Dillution Thermal Ionisation Mass Spectrometry (ID-TIMS)Edit

Isotope dilution where minerals are dissolved in the presence of tracer isotopes



Materials suitable for U-Th and U-PaEdit