It will be years before geologist agree on the cause of deposit. Remember those high concentrations of nickel etc. came out of magma flow over, likely, a long period of time and the magma itself would not have had this kind of concentration.

Still for simplisity I tend to think of it the same way as yourself and would feel similar mineralization should be found in the area close to DE 1. Depends to a certain extent the sulphide cause of concentration and if this is repeated to same extent on other deposits.

They say best place to look for a gold mine is next to one so same should apply here.