@Johnathonc Not sure if you can answer this then. In your...

@Johnathonc
Not sure if you can answer this then.
In your experience in finding these nuggets, are they always found close to mrb or are they also found where mrb is absent? ( the theory being the mrb has to be there to preserve the underlying conglo and that if there is no mrb, there is no conglo )
I know that there is a belief by many that the conglo has been preserved by mrb but I continue to argue that this is not analogous across the region and where there is no mrb there may still be an abundance of nuggets and somewhat easier to extract.
I also note that most of the video material I have seen where extraction of nuggets is taking place is on reasonably flat land with seemingly no mrb.
Is this the case?
Kind regards, Wack.