Thank you guys for taking time to answer. System being a...

Thank you guys for taking time to answer.
System being a porphyrie, the low grade isn't so much a problem I guess but I had the idea gold would have to be associated with copper.
I'm thinking now looking at the airborne data, if what we see is the volatiles which escaped in the steams, is there not a possibility the rich chamber is under, a bit too far for the aerial survey?
Sorry if what i say is stupid, I'm a novice.
Anyway I gonna look at Thunder posts, I value a lot his posts just didn't look far enough on the thread.