Correlation of the Fortescue Group

Summary

A reliable age of 2765 Ma for a massive regional volcanic event which initiated deposition of the Fortescue Group has been established by using the Sensitive High-Resolution Ion Microprobe to measure U-Pb zircon ages from 10 samples.

Keywords: geochronology, Fortescue Group, Witwatersrand Supergroup, Ventersdorp Supergroup