Geothermal parameters of in situ Rb–Sr dating on Proterozoic shales and its applications

Abstract

Recent developments in tandem laser ablation-mass spectrometer technology have been shown to be capable of separating parent and daughter isotopes of the same mass online. Consequently, beta decay chronometers can now be applied to the geological archive in situ as opposed to through traditional whole-rock digestions. This new technique provides quicker and cheaper acquisition of geochronological and geochemical data whilst still maintaining a sample’s petrographic context.