I have the impression that a number of the deposits found are going to be 'pods' or fairly narrow and long veins of rich ore (hard to call something a vein if it's 40 to 100 meters wide I guess).
The surveys will give them a good idea where to start but for sure there will be drills that miss what they are looking for. Even a miss usually tells them something even if it's only trace mineralization.
Darned if I know what's going to be found all over the place, nickle, copper, chromium, zinc, platinum group metals and now rhodium on the list. Haven't seen any mention of Gold yet but thought there might have been mention of silver.