I'm a very visual kind of person, so when I read all this stuff about dome shaped rock and RFI and finger-like projections and uninterrupted magnetic features etc etc , I can't help but try to get a mental image.

If, as the JBL was forming, you had the middle intrusion at a higher elevation, dripping down the sides as it were, would that account for the rivulets leading to E1, etc? I realize the central part of the ring is younger rock, but if it re-reacted with the older outer ring, creating high grade pods, would that make any sense?

There does definitely seem to be the layering effect going on here, and with that snippet saying the feeder conduit could be to the NW, it kinda fits, in my mind.

Anyways, awaiting the opinions of others!

GLTAL