Grubstake, do you have any scientific proof of this occurring ? If so could you please direct me to the source.What about lateritic gold in WA? Originally deposited in quartz reefs, from which it is later slowly dissolved by hyper-saline groundwater and transported in that fluid until it precipitates out of solution when it comes in contact with iron-rich laterites.
To the best of my knowledge all laterite gold nuggets in WA can be dated to the Archean period whilst all the laterites were deposited much later. ie they were deposited "whole" during the formation.
The weird one in WA is that our gold is much older than say the gold in Victoria, all Archean with only 3 geographically isolated mines that don't conform to this period (T, B and SoM).
The gold being so old there has been much more vertical erosion in WA (kilometres ) and what is now a laterite hill was once a river valley or floodplain.