Thank you for that explanation. I jumped the gun a bit instead...

Thank you for that explanation. I jumped the gun a bit instead of reading thoroughly.

I'm quite pleased with progress and have everything crossed for good hits with the supergene.

I do have a question though. All of the Cu mineralisation at Cangai is close to the surface (at least the discovered bits are!) and the lenses appear to me to touch the surface. What happens to the weathered ore? Does it mix with non mineralised rock and wash away to concentrations too low to worry about? Or does it concentrate downstream somewhere?

Won't be doubling up, holding seven figures is risk enough and couldn't handle eight!