Archean

Mr Porter has provided training, regional assessment, targeting advice and technical input into exploration programs for numerous companies across the Archean Yilgarn and Pilbara cratons of Western Australia and globally.

Other, older texts simply refer to the eon as the Pre-Archean.

Tectonic history (Supercontinents) Evidence of collision and rifting between continents raises questions as to what exactly the movements of the Archean cratons composing Proterozoic continents were.

The gold is found only in six areas where archean rivers from the north and north-west formed extensive pebbly braided river deltas before draining into the "Witwatersrand sea" where the rest of the Witwatersrand sediments were deposited.