Metamorphic processes invalidate radiometric dating methods

24-Oct-2020 17:01

Precision is enhanced if measurements are taken on multiple samples from different locations of the rock body.

Together with stratigraphic principles, radiometric dating methods are used in geochronology to establish the geologic time scale.

The only exceptions are nuclides that decay by the process of electron capture, such as beryllium-7, strontium-85, and zirconium-89, whose decay rate may be affected by local electron density.