I think the McFaulds area has had multiple events in geologic time.... each event bringing it's own special blend of metals to the surface.

The MMi indicate the intrusion.... Magmatic flow is slightly different in that A1 contains Cobalt, where no Cobalt is indicated in DE1.. These may have had the same source and underlying conduit, but surfaced in seprate areas.

A2 seams to have actually outcroped..... A1 may outcrop and yet to be discovered subsurface such as DE1

The drill will provide the confirmation, lets hope it is not as difficult to define as DE1.... and hope it is just as rich....

JMHO